Articles by Francis Smart

More Explorations with catR

December 1, 2013 | Francis Smart

# For the purposes of simulating computerized adaptive tests# the R package catR is unparallelled. # catR is an excellent tool for students who are curious about# how a computerized adaptive test might work. It is also useful# for testing companie... [Read more...]

Results of an Informal Survey of R users

November 22, 2013 | Francis Smart

# This post does some basic correlation analysis between responses# to the survey I recently released through R Shiny at: # I have saved the data from the survey after completin... [Read more...]

A Shiny App for Playing with OLS

November 11, 2013 | Francis Smart

Ordinary least squares continues to be the staple estimator for causal inference for good reason.  In order to help new and veteran OLS users get a better sense of how it is working I have created a shiny app that allows for instant interactivity ... [Read more...]

A Call for Contributors

October 29, 2013 | Francis Smart

Dear Readers,This blog has been going for a year and a half now and I have posted nearly 300 posts to date.  I plan to continue to post though I am going to probably continue to shift my focus from daily blogging to that of getting a dissertation ... [Read more...]

Making regex examples work for you!

August 30, 2013 | Francis Smart

One of the most frequently used string recognition algorithms out there is regex and R implements regex.  However, users can often be frustrated with how despite taking examples verbatim from many sources such as stackoverflow they do not seem to ... [Read more...]

Doodling in R!

August 21, 2013 | Francis Smart

# I am working on creating some functions that will be capable of creating shapes and plots that look hand drawn. # I have made some progress in this goal. # In that process I have also discovered that I can make some doodles that look hand d... [Read more...]

A Stata HTML syntax highlighter in R

August 12, 2013 | Francis Smart

So I have been having difficulty getting my Stata code to look the way I want it to look when I post it to my blog.  To alleviate this condition I have written a html encoder in R.  I don't know much about html so it is likely to be ... [Read more...]
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