shape: (3, 1)
| Provinces |
|---|
| str |
| "Newfoundland" |
| "Saskatchewan" |
| "Manitoba" |
Extract the first few characters of text in polars
str.head
100DaysOfPolars
Sometimes you may need to extract the first five or seven characters from a text value. This is useful when working with long strings. The following example uses a dataframe of Canadian provinces.
Get first 5 letters
To get the first five letters of each province name, use the Polars expression str.head like this:
(df
.with_columns(First_5_Chars=pl.col('Provinces').str.head(5))
)
shape: (3, 2)
| Provinces | First_5_Chars |
|---|---|
| str | str |
| "Newfoundland" | "Newfo" |
| "Saskatchewan" | "Saska" |
| "Manitoba" | "Manit" |
Tip
To get the last five letters, use the Polars expression str.tail.
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