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D.2.7 Dimensions

A pivot table presents multidimensional data. A Dimension identifies the categories associated with each dimension.

Dimensions ⇒ int[n-dims] Dimension*[n-dims]
Dimension ⇒ Value[name] DimUnknown int[n-categories] Category*[n-categories]
DimUnknown ⇒
    byte[d1]
    (00 | 01 | 02)[d2]
    (i0 | i2)[d3]
    (00 | 01)[d4]
    (00 | 01)[d5]
    01
    int[d6]

name is the name of the dimension, e.g. Variables, Statistics, or a variable name.

d1 is usually 0 but many other values have been observed.

d3 is 2 over 99% of the time.

d5 is 0 over 99% of the time.

d6 is either -1 or the 0-based index of the dimension, e.g. 0 for the first dimension, 1 for the second, and so on. The latter is the case 98% of the time in the corpus.