Dakota Reference Manual: dimension

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dimension

Prescribe the number of active dimensions

## Specification

Alias: none

Argument(s): INTEGER

## Description

If a prescribed dimension for the rotation matrix is desired, this can be specified with the keywork `dimension`. In this case, the algorithm does not use the `truncation_method` or the `truncation_tolerance` to determine the truncation of the rotation matrix, but it just selects the first dimensions, where is assigned by `dimension`.

## Examples

The following block

    model
      id_model = 'SUBSPACE'
      adapted_basis
        actual_model_pointer = 'FULLSPACE'
        sparse_grid_level = 1
        dimension = 3

prescribes the selection of the first three most important directions to build the rotation matrix and the reduced model representation.