pub fn fill_none(&self, strategy: FillNoneStrategy) -> Result<Self> {
        let col = self
            .columns
            .par_iter()
            .map(|s| s.fill_none(strategy))
            .collect::<Result<Vec<_>>>()?;
        Ok(DataFrame::new_no_checks(col))
    }
/// Replace None values with one of the following strategies:
/// * Forward fill (replace None with the previous value)
/// * Backward fill (replace None with the next value)
/// * Mean fill (replace None with the mean of the whole array)
/// * Min fill (replace None with the minimum of the whole array)
/// * Max fill (replace None with the maximum of the whole array)
///
/// See the method on [Series](../series/enum.Series.html#method.fill_none) for more info on the `fill_none` operation.
Replace None values with one of the following strategies:
Forward fill (replace None with the previous value)
Backward fill (replace None with the next value)
Mean fill (replace None with the mean of the whole array)
Min fill (replace None with the minimum of the whole array)
Max fill (replace None with the maximum of the whole array)

See the method on [Series](../series/enum.Series.html#method.fill_none) for more info on the `fill_none` operation.
Replace None values with one of the following strategies : Forward fill ( replace None with the previous value ) Backward fill ( replace None with the next value ) Mean fill ( replace None with the mean of the whole array ) Min fill ( replace None with the minimum of the whole array ) Max fill ( replace None with the maximum of the whole array ) See the method on [ Series ] ( .. / series / enum . Series . html#method . fill_none ) for more info on the ` fill_none ` operation .
pub fn fill_none(&self, strategy: FillNoneStrategy) -> Result<Self> {
        let col = self
            .columns
            .par_iter()
            .map(|s| s.fill_none(strategy))
            .collect::<Result<Vec<_>>>()?;
        Ok(DataFrame::new_no_checks(col))
    }
pub fn fill_none ( & self , strategy : FillNoneStrategy ) -> Result < Self > { let col = self . columns . par_iter ( ) . map ( | s | s . fill_none ( strategy ) ) . collect :: < Result < Vec < _ > > > ( ) ? ; Ok ( DataFrame :: new_no_checks ( col ) ) }
Replace None values with one of the following strategies:
 Forward fill (replace None with the previous value)
 Backward fill (replace None with the next value)
 Mean fill (replace None with the mean of the whole array)
 Min fill (replace None with the minimum of the whole array)
 Max fill (replace None with the maximum of the whole array)
Replace None values with one of the following strategies : Forward fill ( replace None with the previous value ) Backward fill ( replace None with the next value ) Mean fill ( replace None with the mean of the whole array ) Min fill ( replace None with the minimum of the whole array ) Max fill ( replace None with the maximum of the whole array )
&self
strategy
FillNoneStrategy
&self
strategy
FillNoneStrategy