The DO Loop

Statistical programming in SAS with an emphasis on SAS/IML programs
Analytics | Learn SAS
Rick Wicklin 10
What is polychoric correlation?

Correlation is a statistic that measures the association between two variables. When two variables are positively correlated, low values of one variable tend to be associated with low values of the other variable. Medium values and high values are similarly associated. For negative correlation, the association is flipped: low values

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