import java.util.Arrays;
import tech.tablesaw.api.DoubleColumn;
import tech.tablesaw.api.Row;
import tech.tablesaw.api.Table;

import static tech.tablesaw.aggregate.AggregateFunctions.*;
public class Main {

  public static void main(String[] args) {
    double[] obligacje = {55.44, 12.22, 41.33, 131.11};
    double[] kupon = {13.55,123.33, 141.11, 55.141};
    Table df = Table.create("obligacjexkupony").addColumns(
        DoubleColumn.create("Obligacje", obligacje),
        DoubleColumn.create("Kupon", kupon)
    );

    System.out.println(df.print());
    System.out.println(df.structure());
    Table filteredDf = df.where(t -> t.doubleColumn("Obligacje").isLessThanOrEqualTo(50));
    System.out.println(filteredDf.print());

    Table summary = df.summarize(Arrays.asList("Obligacje", "Kupon"), mean, sum, min, max).apply();
    System.out.println(summary.print());

    df.stream().forEach(Main::calculate);
    System.out.println(df.print());


  }

  private static void calculate(Row row) {
    double obligacja = row.getDouble("Obligacje");
    double kupon = row.getDouble("Kupon");
    row.setDouble("Obligacje", obligacja + kupon * 1.04);
  }
}