In our meeting on 24 February 2021 we discussed profiling and comparing of code running on data.table versus data.frame. Code and timing for examples are below. Comparison of multiple versions of R ...

Interest income and dividend income are two ways that investors can earn money from their holdings. However, they come from very different sources and have different tax treatments. Interest income ...

There is a need for effective methods to teach critical thinking (CT). One instructional method that seems promising is comparing correct and erroneous worked examples (i.e., contrasting examples).

People constantly evaluate themselves, and others, in domains like attractiveness, wealth, intelligence, and success. According to some studies, as much as 10 percent of our thoughts involve ...