ml_corr
Compute correlation matrix
Description
Compute correlation matrix
Usage
ml_corr(x, columns = NULL, method = c("pearson", "spearman"))
Arguments
Argument | Description |
---|---|
x | A tbl_spark . |
columns | The names of the columns to calculate correlations of. If only one column is specified, it must be a vector column (for example, assembled using ft_vector_assember() ). |
method | The method to use, either "pearson" or "spearman" . |
Value
A correlation matrix organized as a data frame.
Examples
<- spark_connect(master = "local")
sc <- sdf_copy_to(sc, iris, name = "iris_tbl", overwrite = TRUE)
iris_tbl
<- c("Petal_Width", "Petal_Length", "Sepal_Length", "Sepal_Width")
features
ml_corr(iris_tbl, columns = features, method = "pearson")