unpivot#
- swordfish.function.unpivot()#
Convert the columns specified by valueColNames into a single column.
- 参数:
obj (Constant) -- A table.
keyColNames (Constant) -- A STRING scalar/vector indicating column name(s).
valueColNames (Constant) -- A vector of column names. The specified columns will be converted into a single column. Note the values in these columns must have the same data type.
func (Constant, optional) -- Indicate a function that is applied to valueColNames before they're converted into one column, by default DFLT
- 返回:
Return a table with columns arranged in the following order: the columns specified by keyColNames, the "valueType" column, and the "value" column:
The "valueType" column holds the results of func applied on the columns specified by valueColNames if func is specified, otherwise "valueType" holds the column names specified by valueColNames.
The "value" column holds the corresponding values of these columns.
- 返回类型: