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4321
2012 Feb 13
0
Error from GNLS (undefined columns selected)
...on of the NLME package.
This is an extract from my dataset (it's a 432x6 data.frame) called "input", in the first column I have the values that I need to fit, while the remaining columns are input variables for the theoretical model, the function "mymodel" (which returns a 432x1 vector of fitted values):
V0V1V2V3 V4 V5
0.56374863838.6875400.1041095890.0572495640
1.47392252639.125400.2767123290.0553929370
0.51704068441.0625450.1808219180.0532145910
1.38181318737.5625400.3534246580.0505213210
and this is my call of gnls:
fm1 <- gnls(V0 ~ mymodel(V1,V2,V3,V4,V5,par1,par...