Skip to main content
Version: Java (Groovy)

absSumBy

The absSumBy method groups the data column according to groupByColumns and computes the sum of the absolute values for the rest of the fields.

Syntax​

table.absSumBy()
table.absSumBy(groupByColumns...)

Parameters​

ParameterTypeDescription
groupByColumnsString...

The column(s) by which to group data.

  • NULL returns the absolute sum for all non-key columns.
  • "X" will output the absolute sum of each group in column X.
  • "X", "Y" will output the absolute sum of each group designated from the X and Y columns.
groupByColumnsColumnName...

The column(s) by which to group data.

  • NULL returns the absolute sum for all non-key columns.
  • "X" will output the absolute sum of each group in column X.
  • "X", "Y" will output the absolute sum of each group designated from the X and Y columns.
groupByColumnsCollection<String>

The column(s) by which to group data.

  • NULL returns the absolute sum for all non-key columns.
  • "X" will output the absolute sum of each group in column X.
  • "X", "Y" will output the absolute sum of each group designated from the X and Y columns.

Returns​

A new table containing the absolute sum for each group.

Examples​

In this example, absSumBy returns the absolute sum of the whole table. Because the absolute sum cannot be computed for the string columns X and Y, these columns are dropped before applying absSumBy.

source = newTable(
    stringCol("X", "A", "B", "A", "C", "B", "A", "B", "B", "C"),
    stringCol("Y", "M", "N", "O", "N", "P", "M", "O", "P", "M"),
    intCol("Number", 55, 76, 20, -130, 230, -50, 73, 137, -214),
)

result = source.dropColumns("X", "Y").absSumBy()

In this example, absSumBy returns the absolute sum as grouped by X. Because the absolute sum cannot be computed for the string column Y, this column is dropped before applying absSumBy.

source = newTable(
    stringCol("X", "A", "B", "A", "C", "B", "A", "B", "B", "C"),
    stringCol("Y", "M", "N", "O", "N", "P", "M", "O", "P", "M"),
    intCol("Number", 55, 76, 20, -130, 230, -50, 73, 137, -214),
)

result = source.dropColumns("Y").absSumBy("X")

In this example, absSumBy returns the absolute sum as grouped by both X and Y.

source = newTable(
    stringCol("X", "A", "B", "A", "C", "B", "A", "B", "B", "C"),
    stringCol("Y", "M", "N", "O", "N", "P", "M", "O", "P", "M"),
    intCol("Number", 55, 76, 20, -130, 230, -50, 73, 137, -214),
)

result = source.absSumBy("X", "Y")