Series.Cat (SeriesCategoricalOps)
Namespace: Polars.CSharp
Operations on Categorical series. Access via Series.Cat.
Instance Methods
EndsWith
Check if string representations of values end with a substring.
csharp
public Series EndsWith(string suffix)Parameters
| Name | Type | Description |
|---|---|---|
suffix | string | Suffix substring. |
GetCategories
Get the categories stored in this data type.
csharp
public Series GetCategories()LenBytes
Return the byte-length of the string representation of each value.
csharp
public Series LenBytes()Returns: Expression/Series of data type UInt32.
LenChars
Return the number of characters of the string representation of each value.
csharp
public Series LenChars()Returns: Expression/Series of data type UInt32.
Physical
Get the physical values of a categorical or enum data type.
csharp
public Series Physical()StartsWith
Check if string representations of values start with a substring.
csharp
public Series StartsWith(string prefix)Parameters
| Name | Type | Description |
|---|---|---|
prefix | string | Prefix substring. |
To
Convert to a categorical or enum dtype. The input must be of the physical type of the categorical or enum dtype.
csharp
public Series To(IntoDataTypeExpr dtype, bool strict = true)Parameters
| Name | Type | Description |
|---|---|---|
dtype | IntoDataTypeExpr | The target categorical or enum dtype. |
strict | bool | Whether to panic when encountering an illegal category. |