Since SAS 9.3, ODS Graphics was moved into Base SAS, which means the SAS/Graph license is not needed anymore to access ODS Graphics facilities. It’s definitely nice, but from customers’ point of view, it is not critical necessary: since the “minimum set of SAS system” in most SAS sessions includes the Base SAS, SAS/Stat and […]
Tag: Matrix
Example 9.35: Discrete randomization and formatted output
A colleague asked for help with randomly choosing a kid within a family. This is for a trial in which families are recruited at well-child visits, but in each family only one of the children having a well-child visit that day can be in the study. The…
Example 9.32: Multiple testing simulation
In examples 9.30 and 9.31 we explored corrections for multiple testing and then extracting p-values adjusted by the Benjamini and Hochberg (or FDR) procedure. In this post we’ll develop a simulation to explore the impact of “strong” and “weak” control…
Example 9.27: Baseball and shrinkage
To celebrate the beginning of the professional baseball season here in the US and Canada, we revisit a famous example of using baseball data to demonstrate statistical properties. In 1977, Bradley Efron and Carl Morris published a paper about the Jame…
Example 9.21: The birthday "problem" re-examined
The so-called birthday paradox or birthday problem is simply the counter-intutitive discovery that the probability of (at least) two people in a group sharing a birthday goes up surprisingly fast as the group size increases. If the group is only 23 peo…
Example 9.1: Scatterplots with binning for large datasets
Scatterplots can get very hard to interpret when displaying large datasets, as points inevitably overplot and can’t be individually discerned. A number of approaches have been crafted to help with this problem. One approach uses binning. This approa…
Example 9.1: Scatterplots with binning for large datasets
Scatterplots can get very hard to interpret when displaying large datasets, as points inevitably overplot and can’t be individually discerned. A number of approaches have been crafted to help with this problem. One approach uses binning. This approa…
Example 9.1: Scatterplots with binning for large datasets
Scatterplots can get very hard to interpret when displaying large datasets, as points inevitably overplot and can’t be individually discerned. A number of approaches have been crafted to help with this problem. One approach uses binning. This approa…