snowflake.snowpark.DataFrameStatFunctions¶
- class snowflake.snowpark.DataFrameStatFunctions(df: DataFrame)[source]¶
Bases:
object
Provides computed statistical functions for DataFrames. To access an object of this class, use
DataFrame.stat
.Methods
approxQuantile
(col, percentile, *[, ...])For a specified numeric column and a list of desired quantiles, returns an approximate value for the column at each of the desired quantiles.
approx_quantile
(col, percentile, *[, ...])For a specified numeric column and a list of desired quantiles, returns an approximate value for the column at each of the desired quantiles.
corr
(col1, col2, *[, statement_params])Calculates the correlation coefficient for non-null pairs in two numeric columns.
cov
(col1, col2, *[, statement_params])Calculates the sample covariance for non-null pairs in two numeric columns.
crosstab
(col1, col2, *[, statement_params])Computes a pair-wise frequency table (a
contingency table
) for the specified columns.sampleBy
(col, fractions)Returns a DataFrame containing a stratified sample without replacement, based on a
dict
that specifies the fraction for each stratum.sample_by
(col, fractions)Returns a DataFrame containing a stratified sample without replacement, based on a
dict
that specifies the fraction for each stratum.