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2012 Apr 12
1
correlation matrix between data from different files
Dear users, I'm quite a new french R-user, and I have a problem about doing a correlation matrix. I have temperature data for each weather station of my study area and for each year (for example, a data file for the weather station N?1 for the year 2009, a data file for the N?2 for the year 2010, ....). So I have 70 weather stations with one data file per year since 2005. Each station has 4