Not a day goes by that I don’t read an article saying I don’t exist. Apparently, there are no women actually running start-ups, no Latinos in technology. No one outside of Silicon Valley is doing anything. Maybe I’m a unicorn. Or perhaps I’m invisible. If I were to actually exist, and if it was possible…
Today, I wanted to find the confidence interval for the difference between two proportions. I have SAS, SPSS, Stata, JMP, Excel and God knows what else laying around. I did not want to go to the effort of plugging the numbers into a calculator, but it really is a pretty straightforward formula, so you would…
Yesterday and the day before, I gave an example of using SAS to sort student responses into the class they were in using the DATEPART function, TIMEPART function and a few DO-loops. After making sure my code runs, I decided it was pretty redundant and thus a classic case for a macro. What I want…
Any time you find yourself writing the same code over and over, you should be either thinking of a DO loop or a macro. Here is an example that jumped out at me yesterday. The problem was this: Every time a student answers a question in our game, it is stored in our database. After…
While I believe SAS Enterprise Guide was developed to make statistical analysis easier for non-programmers, it is also a useful tool for experienced programmers. Often, I find myself thinking, “I KNOW there is a function that does that ….” but I just can’t remember exactly what it is. Take today as an example. I have…