C=strsplit('851+-. ','')[] i=jpeg::readJPEG(system.file('img/Rlogo.jpg',package='jpeg'))[c(T,F),,2] i=C[findInterval(i,quantile(i,p=seq(0,1,,length(C))))] cat(apply(i,1,paste,collapse=''),sep='\n')
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Say I don’t like the default arguments of a particular function. What can I do about it?
The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens threaten each other.
What’s a good way to find the location of a
needle in a
In this post, as an example of using
minilexer, I’ll parse chess games into an R data frame.
I need to read some foreign data formats into R data structures for manipulation. If the data was csv or yaml or json then I’d just use a package that someone else had written to read in the data. In my case, the data format doesn’t have its own package, so I need to write some parsing code from scratch.
Most (all?) testing packages in R are built around the idea of testing a value at a particular moment in time e.g. “Check that
a == 2 right now”.