Function polars::prelude::col [−][src]
pub fn col(name: &str) -> Expr
Expand description
Create a Column Expression based on a column name.
Arguments
name
- A string slice that holds the name of the column
Examples
ⓘ
// select a column name col("foo")
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// select all columns by using a wildcard col("*")
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// select specific column by writing a regular expression that starts with `^` and ends with `$` // only if regex features is activated col("^foo.*$")