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Overview: SCORE Procedure

The SCORE procedure multiplies values from two SAS data sets, one containing coefficients (for example, factor-scoring coefficients
or regression coefficients) and the other containing raw data to be scored using the coefficients from the first data set.
The result of this multiplication is a SAS data set containing linear combinations of the coefficients and the raw data values.

Many statistical procedures output coefficients that PROC SCORE can apply to raw data to produce scores. The new score variable
is formed as a linear combination of raw data and scoring coefficients. For each observation in the raw data set, PROC SCORE
multiplies the value of a variable in the raw data set by the matching scoring coefficient from the data set of scoring coefficients.
This multiplication process is repeated for each variable in the VAR statement. The resulting products are then summed to
produce the value of the new score variable. This entire process is repeated for each observation in the raw data set. In
other words, PROC SCORE cross multiplies part of one data set with another.