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Qualifying a Dimension

You can use a QDR to qualify the dimension itself, which enables you to specify one dimension value in an expression. The following expression specifies one value of district, the one contained in the single-cell variable mydistrict.

district(district mydistrict)

For a concat dimension, you can use a QDR to qualify the dimension by specifying a value from a base dimension of the concat dimension. The following expression specifies one value of reg.dist.ccdim, a concat dimension that has region and district as its base dimensions. The costs variable is dimensioned by the division and reg.dist.ccdim dimensions.

SHOW reg.dist.ccdim(district 'Boston')

The preceding expression produces the following result.

<DISTRICT: Boston>