[R] Popularity of R, SAS, SPSS, Stata...

[Dario Solari]

First: excuse for my english

My opinion: a useful font for measuring "popoularity" can be Google
Insights for Search - http://www.google.com/insights/search/#

Every person using a software like R, SAS, SPSS needs first to learn
it. So probably he make a web-search for a manual, a tutorial, a
guide. One can measure the share of this kind of serach query.
This kind of results can be useful to determine trends of
"popularity".

Example 1: "R tutorial/manual/guide", "SAS tutorial/manual/guide",
"SPSS tutorial/manual/guide"
http://www.google.com/insights/search/#q=%22r%20tutorial%22%2B%22r%20manual%22%2B%22r%20guide%22%2B%22r%20vignette%22%2C%22spss%20tutorial%22%2B%22spss%20manual%22%2B%22spss%20guide%22%2C%22sas%20tutorial%22%2B%22sas%20manual%22%2B%22sas%20guide%22&cmpt=q

Example 2: "R software", "SAS software", "SPSS software"
http://www.google.com/insights/search/#q=%22r%20software%22%2C%22spss%20software%22%2C%22sas%20software%22&cmpt=q

Example 3: "R code", "SAS code", "SPSS code"
http://www.google.com/insights/search/#q=%22r%20code%22%2C%22spss%20code%22%2C%22sas%20code%22&cmpt=q

Example 4: "R graph", "SAS graph", "SPSS graph"
http://www.google.com/insights/search/#q=%22r%20graph%22%2C%22spss%20graph%22%2C%22sas%20graph%22&cmpt=q

Example 5: "R regression", "SAS regression", "SPSS regression"
http://www.google.com/insights/search/#q=%22r%20regression%22%2C%22spss%20regression%22%2C%22sas%20regression%22&cmpt=q

Some example are cross-software (learning needs - Example1), other can
be biased by the tarditional use of that software (in SPSS usually you
don't manipulate graph, i think)