Wednesday, December 17, 2014

QQ-plots in R vs. SPSS – A look at the differences

via "R" you ready?:




Peter Norvig's Spell Checker in Two Lines of Base R

Who does not need a spell checker?



Via Publishable Stuff:

sorted_words <- names(sort(table(strsplit(tolower(paste(readLines("http://www.norvig.com/big.txt"), collapse = " ")), "[^a-z]+")), decreasing = TRUE))
correct <- function(word) { c(sorted_words[ adist(word, sorted_words) <= min(adist(word, sorted_words), 2)], word)[1] }

Correlations Matrix

A list of ways to create a correlation matrix:



Sketching Scatterplots to Demonstrate Different Correlations | OUseful.Info, the blog...:



Five ways to visualize your pairwise comparisons



https://stat.ethz.ch/R-manual/R-devel/library/graphics/html/pairs.html



http://www.cookbook-r.com/Graphs/Correlation_matrix/

And, of course, for everything, there is an R package:

plot of chunk mixed