dataFrame.rows — filter()

The filter() method of the rows object keeps only the rows for which the specified function returns true.

dataFrame.rows.filter(function)

Scope

dataFrame

Family

rows

Returns

mutates

function (function)

A function used to determine whether each row should be kept.

• The function receives a row object representing the current row. Column values can be accessed using column names:
  • row["name"]
  • row["age"]
• The function must return a boolean value:
  • Keep the row: true
  • Remove the row: false

// keeps rows where value in the column 'age' is greater than or equal to 18
dataFrame.rows.filter(function(row) {
  return row["age"] >= 18;
});