Please read the last line to every message on r-help and note the request to provide reproducible code.
Anyways, try this: Lines <- "Field1 Field2 Field3 Field4 ResultField 1231 CA TRUE 443 TRUE 23231 NC TRUE 123 FALSE 1231 CA FALSE 243 TRUE 23231 NC TRUE 123 NA" DF <- read.table(textConnection(Lines), header = TRUE) # logistic regression using first 3 rows mod <- glm(ResultField ~., DF[1:3, ], family = binomial) # prediction using 4th row predict(mod, DF[4, 1:4], type = "response") and also have a look at the caret package. On Fri, Aug 14, 2009 at 10:27 PM, Jack Su<jacks...@gmail.com> wrote: > Say I have a csv file, each row contains several fields, one of them > are whether the row is success. > > In history data, I have all the fields including the result of whether > it is success. In future data, I only have fields without the result. > > For example: > > history data: > > Field1 Field2 Field3 Field4 ResultField > 1231 CA TRUE 443 TRUE > 23231 NC TRUE 123 FALSE > 1231 CA FALSE 243 TRUE > > The future data: > Field1 Field2 Field3 Field4 > 23231 NC TRUE 123 > > > > I am newbie in R and statistics, I just feel R could have some > mechanism to give the probably of success rate based on history data. > > I tried to read in the csv data, and try to call "factor" on the list, > but I am seeing error message: > Error in sort.list(unique.default(x), na.last = TRUE) : > > Any idea are highly welcome. > > Thanks in advance. > > ______________________________________________ > 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. > ______________________________________________ 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.