![The difference between frequencies and weights in regression analysis](https://blogs.sas.com/content/iml/files/2013/09/freqdatagraph.png)
This week I read an interesting blog post that led to a discussion about specifying the frequencies of observations in a regression model. In SAS software, many of the analysis procedures contain a FREQ statement for specifying frequencies and a WEIGHT statement for specifying weights in a weighted regression. Theis