Struct DataFrameStatFunctions

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pub struct DataFrameStatFunctions { /* private fields */ }
Expand description

Functionality for working with missing data in DataFrame.

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impl DataFrameStatFunctions

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pub async fn approx_quantile<'a, I, P>( self, cols: I, probabilities: P, relative_error: f64, ) -> Result<RecordBatch, SparkError>
where I: IntoIterator<Item = &'a str>, P: IntoIterator<Item = f64>,

Calculates the approximate quantiles of numerical columns of a DataFrame.

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pub async fn corr(self, col1: &str, col2: &str) -> Result<f64, SparkError>

Calculates the correlation of two columns of a DataFrame as a double value.

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pub async fn cov(self, col1: &str, col2: &str) -> Result<f64, SparkError>

Calculate the sample covariance for the given columns, specified by their names, as a double value.

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pub fn crosstab(self, col1: &str, col2: &str) -> DataFrame

Computes a pair-wise frequency table of the given columns.

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pub fn freq_items<'a, I>(self, cols: I, support: Option<f64>) -> DataFrame
where I: IntoIterator<Item = &'a str>,

Finding frequent items for columns, possibly with false positives.

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pub fn sample_by<K, I>( self, col: Column, fractions: I, seed: Option<i64>, ) -> DataFrame
where K: Into<Literal>, I: IntoIterator<Item = (K, f64)>,

Returns a stratified sample without replacement based on the fraction given on each stratum.

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impl Clone for DataFrameStatFunctions

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fn clone(&self) -> DataFrameStatFunctions

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for DataFrameStatFunctions

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

Formats the value using the given formatter. Read more

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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