names one or more variables that the COPY statement copies directly from the input
data set to the output data set without transposing them.
Details
Because the COPY statement copies variables directly to the output data set, the number
of observations in the output data set is equal to the number of observations in the input
data set.
The procedure pads the output data set with missing values if the number of observations
in the input data set is not equal to the number of variables that it transposes.
ID Statement
Specifies one or more variables in the input data set whose nonmissing formatted values name the
transposed ...
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