addColumn() / Reference / Processing.org

Name

addColumn()

Class

Table

Description

Use addColumn() to add a new column to a Table object. Typically, you will want to specify a title, so the column may be easily referenced later by name. (If no title is specified, the new column's title will be null.) A column type may also be specified, in which case all values stored in this column must be of the same type (e.g., Table.INT or Table.FLOAT). If no type is specified, the default type of STRING is used.

Examples

Table table;

void setup() {

  table = new Table();
  
  table.addColumn("name");
  table.addColumn("age", Table.INT);
  table.addColumn("height", Table.FLOAT);
  
  TableRow newRow = table.addRow();
  newRow.setString("name", "Jermaine");
  newRow.setInt("age", 15);
  newRow.setFloat("height", 4.567);
  
  saveTable(table, "data/new.csv");
}

// Sketch saves the following to a file called "new.csv":
// name,age,height
// Jermaine,15,4.567

Syntax

.addColumn()
.addColumn(title)
.addColumn(title, type)

Parameters

title(String)the title to be used for the new column
type(int)the type to be used for the new column: INT, LONG, FLOAT, DOUBLE, or STRING

Return

void

Table::removeColumn()

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.