[R] problem with data frame to numeric transformation

[Ivette]

http://r.789695.n4.nabble.com/file/n4630788/GOF_CGIK.R GOF_CGIK.R  
http://r.789695.n4.nabble.com/file/n4630788/RESIDSNEWr.csv RESIDSNEWr.csv 

In order to save place, I attach the data and the R code, for which I have 2
questions.

1/ I cannot convert successfully the data frames with names "first" and
"second" in numeric format. They participate here: 

calibKendallsTau(cc,cor(first,second,method="kendall")) and I get an error
message.

2/ I have cut the dates from my data file RESIDSNEWr.csv, but let's suppose
I want to keep them. How shall I update the code from 1/ in order to have
also the dates?

Many thanks in advance to all, who will answer my message




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