| Extract Parts of a Polars Object | [.RPolarsDataFrame [.RPolarsLazyFrame [.RPolarsSeries |
| Create a arrow Table from a Polars object | as_arrow_table.RPolarsDataFrame |
| Create a nanoarrow_array_stream from a Polars object | as_nanoarrow_array_stream.RPolarsDataFrame as_nanoarrow_array_stream.RPolarsSeries |
| To polars DataFrame | as_polars_df as_polars_df.ArrowTabular as_polars_df.data.frame as_polars_df.default as_polars_df.nanoarrow_array as_polars_df.nanoarrow_array_stream as_polars_df.RecordBatchReader as_polars_df.RPolarsDataFrame as_polars_df.RPolarsDynamicGroupBy as_polars_df.RPolarsGroupBy as_polars_df.RPolarsLazyFrame as_polars_df.RPolarsLazyGroupBy as_polars_df.RPolarsRollingGroupBy as_polars_df.RPolarsSeries |
| To polars LazyFrame | as_polars_lf as_polars_lf.default as_polars_lf.RPolarsLazyFrame as_polars_lf.RPolarsLazyGroupBy |
| To polars Series | as_polars_series as_polars_series.Array as_polars_series.ChunkedArray as_polars_series.clock_sys_time as_polars_series.clock_time_point as_polars_series.clock_zoned_time as_polars_series.data.frame as_polars_series.default as_polars_series.list as_polars_series.nanoarrow_array as_polars_series.nanoarrow_array_stream as_polars_series.POSIXlt as_polars_series.RecordBatchReader as_polars_series.RPolarsChainedThen as_polars_series.RPolarsExpr as_polars_series.RPolarsSeries as_polars_series.RPolarsThen as_polars_series.vctrs_rcrd |
| Create a arrow RecordBatchReader from a Polars object | as_record_batch_reader.RPolarsDataFrame |
| Convert to a character vector | as.character.RPolarsSeries |
| Convert to a data.frame | as.data.frame.RPolarsDataFrame as.data.frame.RPolarsLazyFrame |
| Convert to a matrix | as.matrix.RPolarsDataFrame as.matrix.RPolarsLazyFrame |
| Convert to a vector | as.vector.RPolarsSeries |
| Combine to a Series | c.RPolarsSeries |
| Cast DataFrame column(s) to the specified dtype | DataFrame_cast |
| Inner workings of the DataFrame-class | DataFrame_class RPolarsDataFrame |
| Create an empty or n-row null-filled copy of the DataFrame | DataFrame_clear |
| Clone a DataFrame | DataFrame_clone |
| Summary statistics for a DataFrame | DataFrame_describe |
| Drop columns of a DataFrame | DataFrame_drop |
| Drop in place | DataFrame_drop_in_place |
| Drop nulls (missing values) | DataFrame_drop_nulls |
| Data types information | DataFrame_dtype_strings |
| Compare two DataFrames | DataFrame_equals |
| Estimated size | DataFrame_estimated_size |
| Explode columns containing a list of values | DataFrame_explode |
| Fill floating point NaN value with a fill value | DataFrame_fill_nan |
| Fill nulls | DataFrame_fill_null |
| Filter rows of a DataFrame | DataFrame_filter |
| Get the first row of the DataFrame. | DataFrame_first |
| Take every nth row in the DataFrame | DataFrame_gather_every |
| Get column (as one Series) | DataFrame_get_column |
| Get the DataFrame as a List of Series | DataFrame_get_columns |
| Show a dense preview of the DataFrame | DataFrame_glimpse |
| Group a DataFrame | DataFrame_group_by |
| Group based on a date/time or integer column | DataFrame_group_by_dynamic |
| Get the first 'n' rows. | DataFrame_head DataFrame_limit |
| Return the element at the given row/column. | DataFrame_item |
| Join DataFrames | DataFrame_join |
| Perform joins on nearest keys | DataFrame_join_asof |
| Perform a join based on one or multiple (in)equality predicates | DataFrame_join_where |
| Get the last row of the DataFrame. | DataFrame_last |
| Convert an existing DataFrame to a LazyFrame | DataFrame_lazy lazy |
| Max | DataFrame_max |
| Mean | DataFrame_mean |
| Median | DataFrame_median |
| Min | DataFrame_min |
| Number of chunks of the Series in a DataFrame | DataFrame_n_chunks |
| Count null values | DataFrame_null_count |
| Split a DataFrame into multiple DataFrames | DataFrame_partition_by |
| Pivot data from long to wide | DataFrame_pivot |
| Quantile | DataFrame_quantile |
| Rechunk a DataFrame | DataFrame_rechunk |
| Rename column names of a DataFrame | DataFrame_rename |
| Reverse | DataFrame_reverse |
| Create rolling groups based on a date/time or integer column | DataFrame_rolling |
| Take a sample of rows from a DataFrame | DataFrame_sample |
| Select and modify columns of a DataFrame | DataFrame_select select |
| Select and modify columns of a DataFrame | DataFrame_select_seq |
| Shift a DataFrame | DataFrame_shift |
| Slice | DataFrame_slice |
| Sort a DataFrame | DataFrame_sort |
| Execute a SQL query against the DataFrame | DataFrame_sql |
| Std | DataFrame_std |
| Sum | DataFrame_sum |
| Get the last 'n' rows. | DataFrame_tail |
| Return Polars DataFrame as R data.frame | DataFrame_to_data_frame |
| Convert variables into dummy/indicator variables | DataFrame_to_dummies |
| Return Polars DataFrame as a list of vectors | DataFrame_to_list |
| Write Arrow IPC data to a raw vector | DataFrame_to_raw_ipc |
| Get column by index | DataFrame_to_series |
| Convert DataFrame to a Series of type "struct" | DataFrame_to_struct to_struct |
| Transpose a DataFrame over the diagonal. | DataFrame_transpose |
| Drop duplicated rows | DataFrame_unique |
| Unnest the Struct columns of a DataFrame | DataFrame_unnest |
| Unpivot a Frame from wide to long format | DataFrame_unpivot |
| Var | DataFrame_var |
| Modify/append column(s) | DataFrame_with_columns with_columns |
| Modify/append column(s) | DataFrame_with_columns_seq |
| Add a column for row indices | DataFrame_with_row_index |
| Write to comma-separated values (CSV) file | DataFrame_write_csv |
| Write to Arrow IPC file (a.k.a Feather file) | DataFrame_write_ipc |
| Write to JSON file | DataFrame_write_json |
| Write to NDJSON file | DataFrame_write_ndjson |
| Write to parquet file | DataFrame_write_parquet |
| Create Array DataType | DataType_Array |
| Create Categorical DataType | DataType_Categorical |
| Check whether the data type contains categoricals | DataType_contains_categoricals |
| Check whether the data type contains views | DataType_contains_views |
| Data type representing a calendar date and time of day. | DataType_Datetime pl_Datetime |
| Data type representing a time duration | DataType_Duration |
| Create Enum DataType | DataType_Enum |
| Check whether the data type is an array type | DataType_is_array |
| Check whether the data type is a binary type | DataType_is_binary |
| Check whether the data type is a boolean type | DataType_is_bool |
| Check whether the data type is a Categorical type | DataType_is_categorical |
| Check whether the data type is an Enum type | DataType_is_enum |
| Check whether the data type is a float type | DataType_is_float |
| Check whether the data type is an integer type | DataType_is_integer |
| Check whether the data type is known | DataType_is_known |
| Check whether the data type is a list type | DataType_is_list |
| Check whether the data type is a logical type | DataType_is_logical |
| Check whether the data type is a nested type | DataType_is_nested |
| Check whether the data type is a null type | DataType_is_null |
| Check whether the data type is a numeric type | DataType_is_numeric |
| Check whether the data type is an ordinal type | DataType_is_ord |
| Check whether the data type is a primitive type | DataType_is_primitive |
| Check whether the data type is a signed integer type | DataType_is_signed_integer |
| Check whether the data type is a String type | DataType_is_string |
| Check whether the data type is a temporal type | DataType_is_struct |
| Check whether the data type is a temporal type | DataType_is_temporal |
| Check whether the data type is an unsigned integer type | DataType_is_unsigned_integer |
| Create List DataType | DataType_List |
| Create Struct DataType | DataType_Struct |
| Get the dimensions | dim.RPolarsDataFrame dim.RPolarsLazyFrame |
| Get the row and column names | dimnames.RPolarsDataFrame dimnames.RPolarsLazyFrame |
| Translation definitions across python, R and polars. | docs_translations |
| Aggregate over a DynamicGroupBy | DynamicGroupBy_agg |
| Operations on Polars DataFrame grouped on time or integer values | DynamicGroupBy_class RPolarsDynamicGroupBy |
| Ungroup a DynamicGroupBy object | DynamicGroupBy_ungroup |
| Compute the absolute values | Expr_abs |
| Add two expressions | Expr_add |
| Aggregate groups | Expr_agg_groups |
| Rename Expr output | Expr_alias |
| Apply logical AND on a column | Expr_all |
| Apply logical AND on two expressions | Expr_and |
| Apply logical OR on a column | Expr_any |
| Append expressions | Expr_append |
| Approx count unique values | Expr_approx_n_unique |
| Compute inverse cosine | Expr_arccos |
| Compute inverse hyperbolic cosine | Expr_arccosh |
| Compute inverse sine | Expr_arcsin |
| Compute inverse hyperbolic sine | Expr_arcsinh |
| Compute inverse tangent | Expr_arctan |
| Compute inverse hyperbolic tangent | Expr_arctanh |
| Index of max value | Expr_arg_max |
| Index of min value | Expr_arg_min |
| Index of a sort | Expr_arg_sort |
| Index of first unique values | arg_unique Expr_arg_unique |
| Fill null values backward | Expr_backward_fill |
| Bottom k values | Expr_bottom_k |
| Cast between DataType | Expr_cast |
| Ceiling | Expr_ceil |
| Polars Expressions | Expr_class RPolarsExpr |
| Clip elements | Expr_clip |
| Compute cosine | Expr_cos |
| Compute hyperbolic cosine | Expr_cosh |
| Count elements | Expr_count Expr_len |
| Cumulative count | Expr_cum_count |
| Cumulative maximum | Expr_cum_max |
| Cumulative minimum | Expr_cum_min |
| Cumulative product | Expr_cum_prod |
| Cumulative sum | Expr_cum_sum |
| Cumulative evaluation of expressions | Expr_cumulative_eval |
| Bin continuous values into discrete categories | Expr_cut |
| Difference | Expr_diff |
| Divide two expressions | Expr_div |
| Dot product | Expr_dot |
| Drop NaN | Expr_drop_nans |
| Drop missing values | Expr_drop_nulls |
| Entropy | Expr_entropy |
| Check equality | Expr_eq |
| Check equality without 'null' propagation | Expr_eq_missing |
| Exponentially-weighted moving average | Expr_ewm_mean |
| Exponentially-weighted moving standard deviation | Expr_ewm_std |
| Exponentially-weighted moving variance | Expr_ewm_var |
| Exclude certain columns from selection | exclude Expr_exclude |
| Compute the exponential of the elements | Expr_exp |
| Explode a list or String Series | Expr_explode |
| Extend Series with a constant | Expr_extend_constant |
| Fill floating point NaN value with a fill value | Expr_fill_nan |
| Fill null values with a value or strategy | Expr_fill_null |
| Filter a single column. | Expr_filter |
| Get the first value. | Expr_first |
| Explode a list or String Series | Expr_flatten |
| Floor | Expr_floor |
| Floor divide two expressions | Expr_floor_div |
| Fill null values forward | Expr_forward_fill |
| Gather values by index | Expr_gather |
| Gather every nth element | Expr_gather_every |
| Check strictly greater inequality | Expr_gt |
| Check greater or equal inequality | Expr_gt_eq |
| Check whether the expression contains one or more null values | Expr_has_nulls |
| Hash elements | Expr_hash hash |
| Get the first n elements | Expr_head |
| Wrap column in list | Expr_implode |
| Inspect evaluated Series | Expr_inspect |
| Interpolate null values | Expr_interpolate |
| Check if an expression is between the given lower and upper bounds | Expr_is_between |
| Check whether each value is duplicated | Expr_is_duplicated |
| Check if elements are finite | Expr_is_finite |
| Check whether each value is the first occurrence | Expr_is_first_distinct |
| Check whether a value is in a vector | Expr_is_in |
| Check if elements are infinite | Expr_is_infinite is_infinite |
| Check whether each value is the last occurrence | Expr_is_last_distinct |
| Check if elements are NaN | Expr_is_nan is_nan |
| Check if elements are not NaN | Expr_is_not_nan is_not_nan |
| Check if elements are not NULL | Expr_is_not_null |
| Check if elements are NULL | Expr_is_null |
| Check whether each value is unique | Expr_is_unique |
| Kurtosis | Expr_kurtosis |
| Get the last value | Expr_last |
| Get the first n elements | Expr_limit |
| Compute the logarithm of elements | Expr_log |
| Compute the base-10 logarithm of elements | Expr_log10 |
| Find the lower bound of a DataType | Expr_lower_bound |
| Check strictly lower inequality | Expr_lt |
| Check lower or equal inequality | Expr_lt_eq |
| Map an expression with an R function | Expr_map_batches |
| Map a custom/user-defined function (UDF) to each element of a column | Expr_map_elements |
| Get maximum value | Expr_max |
| Get mean value | Expr_mean |
| Get median value | Expr_median |
| Get minimum value | Expr_min |
| Modulo two expressions | Expr_mod |
| Mode | Expr_mode |
| Multiply two expressions | Expr_mul |
| Count number of unique values | Expr_n_unique |
| Get maximum value with NaN | Expr_nan_max |
| Get minimum value with NaN | Expr_nan_min |
| Check inequality | Expr_neq |
| Check inequality without 'null' propagation | Expr_neq_missing |
| Negate a boolean expression | Expr_not |
| Count missing values | Expr_null_count |
| Apply logical OR on two expressions | Expr_or |
| Compute expressions over the given groups | Expr_over |
| Percentage change | Expr_pct_change |
| Find local maxima | Expr_peak_max |
| Find local minima | Expr_peak_min |
| Exponentiation two expressions | Expr_pow |
| Product | Expr_product |
| Bin continuous values into discrete categories based on their quantiles | Expr_qcut |
| Get quantile value. | Expr_quantile |
| Rank elements | Expr_rank |
| Rechunk memory layout | Expr_rechunk |
| Reinterpret bits | Expr_reinterpret |
| Repeat a Series | Expr_rep |
| Repeat values | Expr_repeat_by |
| Replace the given values by different values of the same data type. | Expr_replace |
| Replace all values by different values. | Expr_replace_strict |
| Reshape this Expr to a flat Series or a Series of Lists | Expr_reshape |
| Reverse a variable | Expr_reverse |
| Get the lengths of runs of identical values | Expr_rle |
| Map values to run IDs | Expr_rle_id |
| Create rolling groups based on a time or numeric column | Expr_rolling |
| Rolling maximum | Expr_rolling_max |
| Apply a rolling max based on another column. | Expr_rolling_max_by |
| Rolling mean | Expr_rolling_mean |
| Apply a rolling mean based on another column. | Expr_rolling_mean_by |
| Rolling median | Expr_rolling_median |
| Apply a rolling median based on another column. | Expr_rolling_median_by |
| Rolling minimum | Expr_rolling_min |
| Apply a rolling min based on another column. | Expr_rolling_min_by |
| Rolling quantile | Expr_rolling_quantile |
| Compute a rolling quantile based on another column | Expr_rolling_quantile_by |
| Rolling skew | Expr_rolling_skew |
| Rolling standard deviation | Expr_rolling_std |
| Compute a rolling standard deviation based on another column | Expr_rolling_std_by |
| Rolling sum | Expr_rolling_sum |
| Apply a rolling sum based on another column. | Expr_rolling_sum_by |
| Rolling variance | Expr_rolling_var |
| Compute a rolling variance based on another column | Expr_rolling_var_by |
| Round | Expr_round |
| Take a sample | Expr_sample |
| Where to inject element(s) to maintain sorting | Expr_search_sorted |
| Flag an Expr as "sorted" | Expr_set_sorted |
| Shift values by the given number of indices | Expr_shift |
| Shrink numeric columns to the minimal required datatype | Expr_shrink_dtype |
| Shuffle values | Expr_shuffle |
| Get the sign of elements | Expr_sign |
| Compute sine | Expr_sin |
| Compute hyperbolic sine | Expr_sinh |
| Skewness | Expr_skew |
| Get a slice of an Expr | Expr_slice |
| Sort an Expr | Expr_sort |
| Sort Expr by order of others | Expr_sort_by |
| Compute the square root of the elements | Expr_sqrt |
| Get standard deviation | Expr_std |
| Substract two expressions | Expr_sub |
| Get sum value | Expr_sum |
| Get the last n elements | Expr_tail |
| Compute tangent | Expr_tan |
| Compute hyperbolic tangent | Expr_tanh |
| Cast an Expr to its physical representation | Expr_to_physical to_physical |
| Convert an Expr to R output | Expr_to_r |
| Convert Literal to Series | Expr_to_series |
| Top k values | Expr_top_k |
| Get unique values | Expr_unique |
| Count unique values | Expr_unique_counts |
| Find the upper bound of a DataType | Expr_upper_bound |
| Value counts | Expr_value_counts |
| Get variance | Expr_var |
| Make a when-then-otherwise expression | ChainedThen ChainedThen_otherwise ChainedThen_when ChainedWhen ChainedWhen_then Expr_when_then_otherwise otherwise pl_when RPolarsChainedThen RPolarsChainedWhen RPolarsThen RPolarsWhen Then then Then_otherwise Then_when When when When_then |
| Apply logical XOR on two expressions | Expr_xor |
| Evaluate whether all boolean values in an array are true | ExprArr_all |
| Evaluate whether any boolean values in an array are true | ExprArr_any |
| Get the index of the maximal value in an array | ExprArr_arg_max |
| Get the index of the minimal value in an array | ExprArr_arg_min |
| Check if array contains a given value | ExprArr_contains |
| Get the value by index in an array | ExprArr_get |
| Join elements of an array | ExprArr_join |
| Find the maximum value in an array | ExprArr_max |
| Find the median in an array | ExprArr_median |
| Find the minimum value in an array | ExprArr_min |
| Reverse values in an array | ExprArr_reverse |
| Shift array values by 'n' indices | ExprArr_shift |
| Sort values in an array | ExprArr_sort |
| Find the standard deviation in an array | ExprArr_std |
| Sum all elements in an array | ExprArr_sum |
| Convert an Array column into a List column with the same inner data type | ExprArr_to_list |
| Convert array to struct | ExprArr_to_struct |
| Get unique values in an array | ExprArr_unique |
| Find the variance in an array | ExprArr_var |
| Check if binaries contain a binary substring | ExprBin_contains |
| Decode values using the provided encoding | ExprBin_decode |
| Encode a value using the provided encoding | ExprBin_encode |
| Check if string values end with a binary substring | ExprBin_ends_with |
| Get the size of binary values in the given unit | ExprBin_size |
| Check if values start with a binary substring | ExprBin_starts_with |
| Get the categories stored in this data type | ExprCat_get_categories |
| Set Ordering | ExprCat_set_ordering |
| cast_time_unit | (Expr)$dt$cast_time_unit ExprDT_cast_time_unit |
| Combine Date and Time | ExprDT_combine |
| Convert to given time zone for an expression of type Datetime. | ExprDT_convert_time_zone |
| Day | (Expr)$dt$day ExprDT_day |
| Epoch | ExprDT_epoch |
| Hour | (Expr)$dt$hour ExprDT_hour |
| Determine whether the year of the underlying date is a leap year | ExprDT_is_leap_year |
| Iso-Year | (Expr)$dt$iso_year ExprDT_iso_year |
| Extract microseconds from underlying Datetime representation. | ExprDT_microsecond |
| Extract milliseconds from underlying Datetime representation | ExprDT_millisecond |
| Minute | (Expr)$dt$minute ExprDT_minute |
| Month | (Expr)$dtmonth ExprDT_month |
| Extract nanoseconds from underlying Datetime representation | ExprDT_nanosecond |
| Offset By | (Expr)$dt$offset_by ExprDT_offset_by |
| Ordinal Day | (Expr)$dt$ordinal_day ExprDT_ordinal_day |
| Quarter | (Expr)$dt$quarter ExprDT_quarter |
| Replace time zone | (Expr)$dt$replace_time_zone ExprDT_replace_time_zone |
| Round datetime | ExprDT_round |
| Extract seconds from underlying Datetime representation | ExprDT_second |
| strftime | (Expr)$dt$strftime ExprDT_strftime |
| Extract time from a Datetime Series | ExprDT_time |
| timestamp | (Expr)$dt$timestamp ExprDT_timestamp |
| Days | ExprDT_total_days |
| Hours | ExprDT_total_hours |
| microseconds | ExprDT_total_microseconds |
| milliseconds | ExprDT_total_milliseconds |
| Minutes | ExprDT_total_minutes |
| nanoseconds | ExprDT_total_nanoseconds |
| Seconds | ExprDT_total_seconds |
| Truncate datetime | ExprDT_truncate |
| Week | (Expr)$dt$week ExprDT_week |
| Weekday | (Expr)$dt$weekday ExprDT_weekday |
| with_time_unit | (Expr)$dt$with_time_unit ExprDT_with_time_unit |
| Year | (Expr)$dt$year ExprDT_year |
| Evaluate whether all boolean values in a list are true | ExprList_all |
| Evaluate whether any boolean values in a list are true | ExprList_any |
| Get the index of the maximal value in list | ExprList_arg_max |
| Get the index of the minimal value in list | ExprList_arg_min |
| Concat two list variables | ExprList_concat |
| Check if list contains a given value | ExprList_contains |
| Compute difference between list values | ExprList_diff |
| Run any polars expression on the list values | ExprList_eval |
| Returns a column with a separate row for every list element | ExprList_explode |
| Get the first value in a list | ExprList_first |
| Get several values by index in a list | ExprList_gather |
| Gather every nth element in a list | ExprList_gather_every |
| Get the value by index in a list | ExprList_get |
| Get the first 'n' values of a list | ExprList_head |
| Join elements of a list | ExprList_join |
| Get the last value in a list | ExprList_last |
| Get the length of each list | ExprList_len |
| Find the maximum value in a list | ExprList_max |
| Compute the mean value of a list | ExprList_mean |
| Find the minimum value in a list | ExprList_min |
| Get the number of unique values in a list | ExprList_n_unique |
| Reverse values in a list | ExprList_reverse |
| Sample from this list | ExprList_sample |
| Get the difference of two list variables | ExprList_set_difference |
| Get the intersection of two list variables | ExprList_set_intersection |
| Get the symmetric difference of two list variables | ExprList_set_symmetric_difference |
| Get the union of two list variables | ExprList_set_union |
| Shift list values by 'n' indices | ExprList_shift |
| Slice list | ExprList_slice |
| Sort values in a list | ExprList_sort |
| Sum all elements in a list | ExprList_sum |
| Get the last 'n' values of a list | ExprList_tail |
| Convert a Series of type 'List' to 'Struct' | ExprList_to_struct |
| Get unique values in a list | ExprList_unique |
| Check if two expressions are equivalent | ExprMeta_eq |
| Indicate if an expression has multiple outputs | ExprMeta_has_multiple_outputs |
| Indicate if an expression uses a regex projection | ExprMeta_is_regex_projection |
| Check if two expressions are different | ExprMeta_neq |
| Get the column name that this expression would produce | ExprMeta_output_name |
| Pop | ExprMeta_pop |
| Get the root column names | ExprMeta_root_names |
| Format an expression as a tree | ExprMeta_tree_format |
| Undo any renaming operation | ExprMeta_undo_aliases |
| Keep the original root name of the expression. | ExprName_keep |
| Add a prefix to a column name | ExprName_prefix |
| Add a prefix to all fields name of a struct | ExprName_prefix_fields |
| Add a suffix to a column name | ExprName_suffix |
| Add a suffix to all fields name of a struct | ExprName_suffix_fields |
| Make the root column name lowercase | ExprName_to_lowercase |
| Make the root column name uppercase | ExprName_to_uppercase |
| Check if string contains a substring that matches a pattern | ExprStr_contains |
| Use the aho-corasick algorithm to find matches | ExprStr_contains_any |
| Count all successive non-overlapping regex matches | ExprStr_count_matches |
| Decode a value using the provided encoding | ExprStr_decode |
| Encode a value using the provided encoding | ExprStr_encode |
| Check if string ends with a regex | ExprStr_ends_with |
| Extract the target capture group from provided patterns | ExprStr_extract |
| Extract all matches for the given regex pattern | ExprStr_extract_all |
| Extract all capture groups for the given regex pattern | ExprStr_extract_groups |
| Use the aho-corasick algorithm to extract matches | ExprStr_extract_many |
| Return the index position of the first substring matching a pattern | ExprStr_find |
| Return the first n characters of each string | ExprStr_head |
| Vertically concatenate the string values in the column to a single string value. | ExprStr_join |
| Parse string values as JSON. | ExprStr_json_decode |
| Extract the first match of JSON string with the provided JSONPath expression | ExprStr_json_path_match |
| Get the number of bytes in strings | ExprStr_len_bytes |
| Get the number of characters in strings | ExprStr_len_chars |
| Left justify strings | ExprStr_pad_end |
| Right justify strings | ExprStr_pad_start |
| Replace first matching regex/literal substring with a new string value | ExprStr_replace |
| Replace all matching regex/literal substrings with a new string value | ExprStr_replace_all |
| Use the aho-corasick algorithm to replace many matches | ExprStr_replace_many |
| Returns string values in reversed order | ExprStr_reverse |
| Create subslices of the string values of a String Series | ExprStr_slice |
| Split the string by a substring | ExprStr_split |
| Split the string by a substring using 'n' splits | ExprStr_split_exact |
| Split the string by a substring, restricted to returning at most 'n' items | ExprStr_splitn |
| Check if string starts with a regex | ExprStr_starts_with |
| Strip leading and trailing characters | ExprStr_strip_chars expr_str_strip_chars |
| Strip trailing characters | ExprStr_strip_chars_end expr_str_strip_chars_end |
| Strip leading characters | ExprStr_strip_chars_start expr_str_strip_chars_start |
| Convert a String column into a Date/Datetime/Time column. | ExprStr_strptime |
| Return the last n characters of each string | ExprStr_tail |
| Convert a String column into a Date column | ExprStr_to_date |
| Convert a String column into a Datetime column | ExprStr_to_datetime |
| Convert a String column into an Int64 column with base radix | ExprStr_to_integer |
| Convert a string to lowercase | ExprStr_to_lowercase |
| Convert a String column into a Time column | ExprStr_to_time |
| Convert a string to titlecase | ExprStr_to_titlecase |
| Convert a string to uppercase | ExprStr_to_uppercase |
| Fills the string with zeroes. | ExprStr_zfill expr_str_zfill |
| Retrieve one of the fields of this Struct as a new Series | ExprStruct_field |
| Rename the fields of the struct | ExprStruct_rename_fields |
| Add or overwrite fields of this struct | ExprStruct_with_fields |
| Get/set global R session pool capacity (DEPRECATED) | global_rpool_cap pl_get_global_rpool_cap pl_set_global_rpool_cap set_global_rpool_cap |
| Aggregate over a GroupBy | agg GroupBy_agg |
| Operations on Polars grouped DataFrame | GroupBy_class RPolarsGroupBy |
| GroupBy First | GroupBy_first |
| GroupBy Last | GroupBy_last |
| GroupBy Max | GroupBy_max |
| GroupBy Mean | GroupBy_mean |
| GroupBy Median | GroupBy_median |
| GroupBy Min | GroupBy_min |
| GroupBy null count | GroupBy_null_count |
| Quantile | GroupBy_quantile |
| Shift the values by a given period | GroupBy_shift |
| GroupBy Std | GroupBy_std |
| GroupBy Sum | GroupBy_sum |
| GroupBy_ungroup | GroupBy_ungroup |
| GroupBy Var | GroupBy_var |
| Return the first or the last 'n' parts of an object | head.RPolarsDataFrame head.RPolarsLazyFrame tail.RPolarsDataFrame tail.RPolarsLazyFrame |
| Infer nanoarrow schema from a Polars object | infer_nanoarrow_schema.RPolarsDataFrame infer_nanoarrow_schema.RPolarsSeries |
| Test if the object is a polars DataFrame | is_polars_df |
| Test if the object a polars DataType | is_polars_dtype |
| Test if the object is a polars LazyFrame | is_polars_lf |
| Test if the object is a polars Series | is_polars_series |
| knit print polars DataFrame | knit_print.RPolarsDataFrame |
| Cast LazyFrame column(s) to the specified dtype | LazyFrame_cast |
| Inner workings of the LazyFrame-class | LazyFrame_class RPolarsLazyFrame |
| Create an empty or n-row null-filled copy of the LazyFrame | LazyFrame_clear |
| Clone a LazyFrame | LazyFrame_clone |
| Collect a query into a DataFrame | LazyFrame_collect |
| Collect a query in background | LazyFrame_collect_in_background |
| Drop columns of a LazyFrame | LazyFrame_drop |
| Drop nulls (missing values) | LazyFrame_drop_nulls |
| Create a string representation of the query plan | LazyFrame_explain |
| Explode columns containing a list of values | LazyFrame_explode |
| Fetch 'n' rows of a LazyFrame | LazyFrame_fetch |
| Fill floating point NaN value with a fill value | LazyFrame_fill_nan |
| Fill nulls | LazyFrame_fill_null |
| Apply filter to LazyFrame | LazyFrame_filter |
| Get the first row of a LazyFrame | LazyFrame_first |
| Take every nth row in the LazyFrame | LazyFrame_gather_every |
| Group a LazyFrame | LazyFrame_group_by |
| Group based on a date/time or integer column | LazyFrame_group_by_dynamic |
| Get the first 'n' rows. | LazyFrame_head |
| Join LazyFrames | LazyFrame_join |
| Perform joins on nearest keys | LazyFrame_join_asof |
| Perform a join based on one or multiple (in)equality predicates | LazyFrame_join_where |
| Get the last row of a LazyFrame | LazyFrame_last |
| Max | LazyFrame_max |
| Mean | LazyFrame_mean |
| Median | LazyFrame_median |
| Min | LazyFrame_min |
| print LazyFrame internal method | LazyFrame_print |
| Collect and profile a lazy query. | LazyFrame_profile |
| Quantile | LazyFrame_quantile |
| Rename column names of a LazyFrame | LazyFrame_rename |
| Reverse | LazyFrame_reverse |
| Create rolling groups based on a date/time or integer column | LazyFrame_rolling |
| Select and modify columns of a LazyFrame | LazyFrame_select |
| Select and modify columns of a LazyFrame | LazyFrame_select_seq |
| Serialize the logical plan of this LazyFrame to a file or string in JSON format | LazyFrame_serialize |
| Shift a LazyFrame | LazyFrame_shift |
| Stream the output of a query to a CSV file | LazyFrame_sink_csv |
| Stream the output of a query to an Arrow IPC file | LazyFrame_sink_ipc |
| Stream the output of a query to a JSON file | LazyFrame_sink_ndjson |
| Stream the output of a query to a Parquet file | LazyFrame_sink_parquet |
| Slice | LazyFrame_slice |
| Sort the LazyFrame by the given columns | LazyFrame_sort |
| Execute a SQL query against the LazyFrame | LazyFrame_sql |
| Std | LazyFrame_std |
| Sum | LazyFrame_sum |
| Get the last 'n' rows. | LazyFrame_tail |
| Plot the query plan | LazyFrame_to_dot |
| Drop duplicated rows | LazyFrame_unique |
| Unnest the Struct columns of a LazyFrame | LazyFrame_unnest |
| Unpivot a Frame from wide to long format | LazyFrame_unpivot |
| Var | LazyFrame_var |
| Select and modify columns of a LazyFrame | LazyFrame_with_columns |
| Select and modify columns of a LazyFrame | LazyFrame_with_columns_seq |
| Add an external context to the computation graph | LazyFrame_with_context |
| Add a column for row indices | LazyFrame_with_row_index |
| LazyGroupBy_agg | LazyGroupBy_agg |
| Operations on Polars grouped LazyFrame | LazyGroupBy_class RPolarsLazyGroupBy |
| LazyGroupBy_head | LazyGroupBy_head |
| LazyGroupBy_print | LazyGroupBy_print |
| LazyGroupBy_tail | LazyGroupBy_tail |
| LazyGroupBy_ungroup | LazyGroupBy_ungroup |
| Get the length | length.RPolarsDataFrame length.RPolarsLazyFrame length.RPolarsSeries |
| Compute the maximum value | max.RPolarsDataFrame max.RPolarsLazyFrame max.RPolarsSeries |
| Compute the mean | mean.RPolarsDataFrame mean.RPolarsLazyFrame mean.RPolarsSeries |
| Compute the median | median.RPolarsDataFrame median.RPolarsLazyFrame median.RPolarsSeries |
| Compute the minimum value | min.RPolarsDataFrame min.RPolarsLazyFrame min.RPolarsSeries |
| Drop missing values | na.omit.RPolarsDataFrame na.omit.RPolarsLazyFrame |
| Get the column names | names.RPolarsDataFrame names.RPolarsGroupBy names.RPolarsLazyFrame names.RPolarsLazyGroupBy |
| New Expr referring to all columns | pl_all |
| Apply the AND logical rowwise | pl_all_horizontal |
| Apply the OR logical rowwise | pl_any_horizontal |
| Approximate count of unique values | pl_approx_n_unique |
| Return the row indices that would sort the columns | pl_arg_sort_by |
| Return indices that match a condition | pl_arg_where |
| Coalesce | pl_coalesce |
| Create an expression representing column(s) in a dataframe | pl_col |
| Concat polars objects | pl_concat |
| Concat the arrays in a Series dtype List in linear time. | pl_concat_list |
| Horizontally concatenate columns into a single string column | pl_concat_str |
| Correlation | pl_corr |
| Return the number of non-null values in the column. | pl_count |
| Covariance | pl_cov |
| Create a new polars DataFrame | pl_DataFrame |
| Create a Date expression | pl_date |
| Generate a date range | pl_date_range |
| Generate a list containing a date range | pl_date_ranges |
| Create a Datetime expression | pl_datetime |
| Generate a datetime range | pl_datetime_range |
| Generate a list containing a datetime range | pl_datetime_ranges |
| Read a logical plan from a JSON file to construct a LazyFrame | pl_deserialize_lf |
| Disable the global string cache | pl_disable_string_cache |
| DataTypes (RPolarsDataType) | pl_dtypes RPolarsDataType |
| Create polars Duration from distinct time components | pl_duration |
| an element in 'eval'-expr | element pl_element |
| Enable the global string cache | pl_enable_string_cache |
| Quickly select a field in a Struct | pl_field |
| Create Field | pl_Field pl_Field_class |
| Get the first value. | pl_first |
| Accumulate over multiple columns horizontally with an R function | pl_fold |
| Convert a Unix timestamp to date(time) | pl_from_epoch |
| Get the first 'n' rows. | pl_head |
| Aggregate all column values into a list. | pl_implode |
| Generate a range of integers | pl_int_range |
| Generate a range of integers for each row of the input columns | pl_int_ranges |
| check if schema | pl_is_schema |
| Get the last value. | pl_last |
| Create new LazyFrame | pl_LazyFrame |
| Return the number of rows in the context. | pl_len |
| Create a literal value | pl_lit |
| Get the maximum value. | pl_max |
| Get the maximum value rowwise | pl_max_horizontal |
| Get the mean value. | pl_mean |
| Compute the mean rowwise | pl_mean_horizontal |
| Get the median value. | pl_median |
| Get Memory Address | pl_mem_address |
| Get the minimum value. | pl_min |
| Get the minimum value rowwise | pl_min_horizontal |
| Count unique values. | pl_n_unique |
| The complete polars public API. | pl pl_pl |
| Store Time in R | pl_PTime PTIME |
| Polars raw list | as.list.rpolars_raw_list pl_raw_list [.rpolars_raw_list |
| New DataFrame from CSV | pl_read_csv |
| Read into a DataFrame from Arrow IPC (Feather v2) file | pl_read_ipc |
| New DataFrame from NDJSON | pl_read_ndjson |
| Read a parquet file | pl_read_parquet |
| Accumulate over multiple columns horizontally with an R function | pl_reduce |
| Rolling correlation | pl_rolling_corr |
| Rolling covariance | pl_rolling_cov |
| New LazyFrame from CSV | pl_scan_csv |
| Lazily read from an Arrow IPC (Feather v2) file or multiple files via glob patterns | pl_scan_ipc |
| New LazyFrame from NDJSON | pl_scan_ndjson |
| Scan a parquet file | pl_scan_parquet |
| Select from an empty DataFrame | pl_select |
| Create new Series | pl_Series Series |
| Initialise a new SQLContext | pl_SQLContext |
| Get the standard deviation. | pl_std |
| Collect columns into a struct column | pl_struct |
| Sum all values. | pl_sum |
| Compute the sum rowwise | pl_sum_horizontal |
| Get the last 'n' rows. | pl_tail |
| Get the number of threads in the Polars thread pool. | pl_thread_pool_size |
| Create a Time expression | pl_time |
| Check if the global string cache is enabled | pl_using_string_cache |
| Get the variance. | pl_var |
| Evaluate one or several expressions with global string cache | pl_with_string_cache |
| Any polars class object is made of this | polars_class_object |
| Polars code completion | polars_code_completion_activate polars_code_completion_deactivate |
| The Polars duration string language | polars_duration_string |
| Get polars environment variables | polars_envvars |
| Report information of the package | polars_info |
| Get and reset polars options | polars_options polars_options_reset |
| Print values | print.RPolarsSeries |
| Aggregate over a RollingGroupBy | RollingGroupBy_agg |
| Operations on Polars DataFrame grouped by rolling windows | RollingGroupBy_class RPolarsRollingGroupBy |
| Ungroup a RollingGroupBy object | RollingGroupBy_ungroup |
| Get the row names | row.names.RPolarsDataFrame |
| The RPolarsRThreadHandle class | RPolarsRThreadHandle RThreadHandle_class |
| Ask if RThreadHandle is finished? | RThreadHandle_is_finished |
| Join a RThreadHandle | RThreadHandle_join |
| Arithmetic operators for RPolars objects | %%.RPolarsExpr %%.RPolarsSeries %/%.RPolarsExpr %/%.RPolarsSeries *.RPolarsExpr *.RPolarsSeries +.RPolarsExpr +.RPolarsSeries -.RPolarsExpr -.RPolarsSeries /.RPolarsExpr /.RPolarsSeries S3_arithmetic ^.RPolarsExpr ^.RPolarsSeries |
| Add Series | Series_add |
| Change name of Series | Series_alias |
| Reduce Boolean Series with ALL | Series_all |
| Reduce boolean Series with ANY | Series_any |
| Append two Series | Series_append |
| Index of max value | Series_arg_max |
| Index of min value | Series_arg_min |
| Lengths of Series memory chunks | Series_chunk_lengths |
| Inner workings of the Series-class | RPolarsSeries Series_class |
| Create an empty or n-row null-filled copy of the Series | Series_clear |
| Clone a Series | Series_clone |
| Compare Series | !=.RPolarsSeries <.RPolarsSeries <=.RPolarsSeries ==.RPolarsSeries >.RPolarsSeries >=.RPolarsSeries Series_compare |
| Divide Series | Series_div |
| Are two Series equal? | Series_equals |
| Floor Divide Series | Series_floor_div |
| Check if the Series is numeric | Series_is_numeric |
| Check if the Series is sorted | Series_is_sorted |
| Return the element at the given index | Series_item |
| Length of a Series | Series_len |
| Apply every value with an R fun | apply Series_map_elements |
| Find the max of a Series | Series_max |
| Compute the mean of a Series | Series_mean |
| Compute the median of a Series | Series_median |
| Find the min of a Series | Series_min |
| Modulo Series | Series_mod |
| Multiply Series | Series_mul |
| Get the number of chunks that this Series contains. | Series_n_chunks |
| Count unique values in Series | Series_n_unique |
| Power Series | Series_pow |
| Print Series | Series_print |
| Rename a series | Series_rename |
| Duplicate and concatenate a series | Series_rep |
| Set a sorted flag on a Series | Series_set_sorted |
| Sort a Series | Series_sort |
| Compute the standard deviation of a Series | Series_std |
| Subtract Series | Series_sub |
| Compute the sum of a Series | Series_sum |
| Convert Series to DataFrame | Series_to_frame |
| Convert a Series to literal | Series_to_lit |
| Convert Series to R vector or list | Series_to_list Series_to_r Series_to_vector |
| Count the occurrences of unique values | Series_value_counts |
| Compute the variance of a Series | Series_var |
| show all public functions / objects | pl_show_all_public_functions show_all_public_functions |
| show all public methods | pl_show_all_public_methods show_all_public_methods |
| Run SQL queries against DataFrame/LazyFrame data. | RPolarsSQLContext SQLContext_class |
| Execute SQL query against the registered data | SQLContext_execute |
| Register a single data as a table | SQLContext_register |
| Register all polars DataFrames/LazyFrames found in the environment | SQLContext_register_globals |
| Register multiple data as tables | SQLContext_register_many |
| List registered tables | SQLContext_tables |
| Unregister tables by name | SQLContext_unregister |
| Compute the sum | sum.RPolarsDataFrame sum.RPolarsLazyFrame sum.RPolarsSeries |
| Drop duplicated rows | unique.RPolarsDataFrame unique.RPolarsLazyFrame |
