![SAS author's tip: Using the SPARSE option with PROC FREQ Carpenter's Guide to Innovative SAS Techniques](https://blogs.sas.com/content/sastraining/files/2013/10/Carpenter_coverOct13.jpg)
This week's SAS tip is from Art Carpenter and his latest book Carpenter's Guide to Innovative SAS Techniques. A SAS user since 1977, Art is an integral and highly respected member of the user community. He's also the author of several outstanding SAS books--and you can explore them here. The following excerpt is from SAS