Enum TidyAgg 

pub enum TidyAgg {
    Count,
    Sum(String),
    Mean(String),
    Min(String),
    Max(String),
    Sd(String),
    Var(String),
    First(String),
    Last(String),
    NDistinct(String),
}

Aggregation functions for summarise().

Variants

Count

Row count (no column argument).

Sum(String)

Kahan-compensated sum of a numeric column.

Mean(String)

Mean (NaN for empty groups).

Min(String)

Minimum value.

Max(String)

Maximum value.

Sd(String)

Sample standard deviation (Kahan-based).

Var(String)

Sample variance (Kahan-based).

First(String)

First row’s value.

Last(String)

Last row’s value.

NDistinct(String)

Count of distinct values.

Trait Implementations

impl Clone for TidyAgg

fn clone(&self) -> TidyAgg

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TidyAgg

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.