Pkg/polars/Column

Column

struct Column

Implementions

ToString

Operators

operator !=

pub fn operator !=(self, b: Column): bool

operator ==

pub fn operator ==(self, b: Column): bool

Static Methods

new_empty

pub fn new_empty(dtype: DataType, name: string = ""): Column

Create a new empty column.

Create a new empty column.

new_scalar

pub fn new_scalar(value: Scalar, length: int, name: string = ""): Column

Methods

add

pub fn add(self, b: Column): Column throws PolarsError

append

pub fn append(self, other: Column) throws PolarsError

Append in place.

Append in place.

This is done by adding the chunks of other to this column.

binary

pub fn binary(self): BinaryChunked?

Unpack to chunked array.

Unpack to chunked array.

bit_and

pub fn bit_and(self, b: Column): Column throws PolarsError

bit_or

pub fn bit_or(self, b: Column): Column throws PolarsError

bit_xor

pub fn bit_xor(self, b: Column): Column throws PolarsError

bool

pub fn bool(self): BooleanChunked?

Unpack to chunked array.

Unpack to chunked array.

cast

pub fn cast(self, dtype: DataType, opts: CastOptions = .NonStrict): Column throws PolarsError

[src]

pub fn cast(self, dtype: DataType, opts: CastOptions = .NonStrict): Column throws PolarsError {
    return try self._cast(dtype, opts as int);
}

Cast series to another data type.

Cast series to another data type.

clone

pub fn clone(self): Column

Clone the column.

Clone the column.

date

pub fn date(self): DateChunked?

Unpack to chunked array.

Unpack to chunked array.

datetime

pub fn datetime(self): DateTimeChunked?

Unpack to chunked array.

Unpack to chunked array.

decimal

pub fn decimal(self): DecimalChunked?

Unpack to chunked array.

Unpack to chunked array.

div

pub fn div(self, b: Column): Column throws PolarsError

dtype

pub fn dtype(self): DataType

duration

pub fn duration(self): DurationChunked?

Unpack to chunked array.

Unpack to chunked array.

eq_missing

pub fn eq_missing(self, b: Column): bool

field

pub fn field(self): Field

float32

pub fn float32(self): Float32Chunked?

Unpack to chunked array.

Unpack to chunked array.

float64

pub fn float64(self): Float64Chunked?

Unpack to chunked array.

Unpack to chunked array.

head

pub fn head(self, length: int): Column

Get the head of the column.

Get the head of the column.

int16

pub fn int16(self): Int16Chunked?

Unpack to chunked array.

Unpack to chunked array.

int32

pub fn int32(self): Int32Chunked?

Unpack to chunked array.

Unpack to chunked array.

int64

pub fn int64(self): Int64Chunked?

Unpack to chunked array.

Unpack to chunked array.

int8

pub fn int8(self): Int8Chunked?

Unpack to chunked array.

Unpack to chunked array.

mul

pub fn mul(self, b: Column): Column throws PolarsError

name

pub fn name(self): string

Returns the name of the column.

Returns the name of the column.

rem

pub fn rem(self, b: Column): Column throws PolarsError

rename

pub fn rename(self, name: string)

Rename the column.

Rename the column.

slice

pub fn slice(self, offset: int, length: int): Column

Get a zero copy view of the data.

Get a zero copy view of the data.

When offset is negative the offset is counted from the end of the array

string

pub fn string(self): StringChunked?

Unpack to chunked array.

Unpack to chunked array.

sub

pub fn sub(self, b: Column): Column throws PolarsError

tail

pub fn tail(self, length: int): Column

Get the tail of the column.

Get the tail of the column.

time

pub fn time(self): TimeChunked?

Unpack to chunked array.

Unpack to chunked array.

to_string

pub fn to_string(self): string

uint16

pub fn uint16(self): UInt16Chunked?

Unpack to chunked array.

Unpack to chunked array.

uint32

pub fn uint32(self): UInt32Chunked?

Unpack to chunked array.

Unpack to chunked array.

uint64

pub fn uint64(self): UInt64Chunked?

Unpack to chunked array.

Unpack to chunked array.

uint8

pub fn uint8(self): UInt8Chunked?

Unpack to chunked array.

Unpack to chunked array.