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Random assignment failure rates when group size is 1,500 or smaller
November 18, 2019No Comments
Assigning subjects to treatment and control groups randomly is called random assignment. Although random assignment creates a statistical expectation that the characteristics of the …
R’s Distribution Functions
October 28, 2019No Comments
R has four standard functions for specific ways that numbers can be distributed. In general, the names of the functions begin with either r, …
Installing the data.table package on Amazon Linux – LEMRS v0.6
December 4, 2018No Comments
This week I’ve upgraded the server to LEMRS v0.6, which adds three R packages for meta-analysis, esc, metafor, and robumeta. The esc package requires …
LEMRS v0.5 – Adding rvest and aws.signature
November 6, 2018No Comments
I’ve been having problems with the web version of the Open-Meta app crashing with a C stack usage error. I entered an issue on the …
Shiny button observer update: ignoring clicks on disabled buttons
September 4, 2018No Comments
In earlier posts, I’ve explained how to add a bit of JavaScript/jQuery code to your project that lets you have one Shiny observeEvent() handler …