Hello, After I use the lm() function to perform a multiple linear regression, and then use the step function to eliminate variables that predict the weakest, I need to export the final equation to a spreadsheet or a text file. Below is some sample code. In the end I want to export the coefficients to a spreadsheet. Will you please direct me to the appropriate syntax? Thanks for your time, --Eric
x <- read.csv('C:/path/*.csv', comment.char = "", nrows = 99, header = TRUE, row.names = 1) w <- lm(d ~ x1 + x2 + x3 + x4 + 1) step(w) Coefficients: (Intercept) x1 x2 x3 x4 4.834e-04 4.892e-01 4.698e-02 4.206e-05 -8.806e-03 write.csv(w, file = 'C:/path/*.csv', append = TRUE) The error I get is: Error in as.data.frame.default(x[[i]], optional = TRUE) : cannot coerce class "lm" into a data.frame -- View this message in context: http://www.nabble.com/Export-Step-Function-Coefficients-to-Spreadsheet-or-Text-File-tf4438516.html#a12663777 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.