PieExample.java

/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package tech.tablesaw.examples;

import tech.tablesaw.api.Table;
import tech.tablesaw.plotly.Plot;
import tech.tablesaw.plotly.components.Figure;
import tech.tablesaw.plotly.components.Layout;
import tech.tablesaw.plotly.traces.PieTrace;

/** Basic sample pie chart */
public class PieExample {

  public static void main(String[] args) throws Exception {
    Table table = Table.read().csv("../data/tornadoes_1950-2014.csv");

    Table t2 = table.countBy(table.categoricalColumn("Scale"));

    PieTrace trace =
        PieTrace.builder(t2.categoricalColumn("Category"), t2.numberColumn("Count")).build();
    Layout layout = Layout.builder().title("Total fatalities by scale").build();

    Plot.show(new Figure(layout, trace));
  }
}