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…
I’m never going to understand the idea that start-ups are for young people. It is like the ads you see where people want a 25-year-old with 15 years of experience, you know, “Expert in C++, systems administration, Linux, Windows, SAS, R, Hadoop, Ruby, Python and Java. Must have 5-plus years experience in development for mobile…
Hey, kids, wanna come over after school and study math? The two students we gave this tempting offer stayed until the office closed and we had to leave. It’s been like that all week. This is what kids playing our new math game look like. I would insert a video but it is not so…
Yesterday, I mentioned this problem For 17 girls diagnosed with anorexia, weight change after family therapy was as follows: 11,11, 6, 9, 14, -3, 0, 7, 22, -5 , -4, 13, 13, 9, 4 , 6, 11 Partial results are shown below. Fill in the missing results: And we had gotten the table completed as…
I was grading the quizzes from my Advanced Quantitative Data Analysis class. This is a class of really smart people in a doctoral program at a selective university. And yet, some of them still had problems with the quiz. Therefore, in however many parts I feel like doing, I am going to discuss how to…
Twenty-eight years ago, I won the world judo championships. Unlike almost everyone else who accomplishes that feat, I did NOT go into running a judo school, selling martial arts supplies, or, more recently, mixed martial arts. Photo courtesy of Hans Gutknecht of the Los Angeles Daily News On the contrary, I immediately went into a…