Hi
I have a very big data.frame : str(fslu12) 'data.frame': 277200 obs. of 11 variables: $ V1 : num 304 304 304 304 304 ... $ V2 : num 300 300 300 300 300 300 300 300 300 300 ... $ V3 : num 10 10 10 10 10 10 10 10 10 10 ... $ V4 : num 79.1 52 30.6 37.3 63 79.1 52 30.6 37.3 63 ... $ V5 : num 0.005 0.00498 0.00496 0.00491 0.00484 ... $ V6 : num 0.01 0.00997 0.00988 0.00969 0.00954 ... $ V7 : num 0.000618 0.001457 0.002777 0.004696 0.005373 ... $ V8 : num 0.1295 0.0309 0.0407 0.0211 -0.0095 ... $ V9 : num 0 -0.000301 -0.000911 -0.001238 -0.000419 ... $ V10: num -0.0002 -0.000201 -0.000202 -0.000814 -0.000619 -0.0002 -0.000402 -0.000404 -0.000611 -0.000205 ... $ V11: Factor w/ 6 levels "n1","n2","n3",..: 2 2 2 2 2 2 2 2 2 2 ... And I would like to fit an equation of the form "y = a + bx^(1/2) * (1-exp(-c*z^d))" , where a , b , c and d are constant and x and z are dependent variables . applied to my data.frame the equation would be: V8 = a + b*V5^(1/2) * (1-exp(-c*V6^d)) , data=fslu12 Does anyone knows about a package/function that could do this? thanks -- View this message in context: http://r.789695.n4.nabble.com/fit-a-non-linear-equation-with-several-dependent-variables-tp3232660p3232660.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
