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DF_addColumn

int DF_addColumn(DataFrame *df, double *data, char *name);

Adds a single column/feature to an existing DataFrame.

info

Added in version 0.0.0

Parameters​

  • DataFrame* df ← Pointer to the existing DataFrame to add the column on.
  • double* data ← Pointer to the source array containing the new data to be added.
  • char* name ← Name of the new column/feature.

Return​

  • int → 0 on success, non-zero on failure.

Example​

#include <ml-in-c/datatypes/dataframe.h>

int main() {
     // Create a DataFrame from an array
     double data[] = {1, 2, 3};
     DataFrame *df = DF_fromArray(data, 3, "feature1");
     
     // Add a column to the existing DataFrame
     double newData[] = {4, 5, 6};
     DF_addColumn(df, newData, "feature2");

     return 0;
}