search for: newerrdata

...me dataset by subset. >From the help running help(subset), ths information is "*subset(airquality, Day == 1, select = -Temp)* " while I running my script written as "*g1data<-subset(errdata, fac>12) *" ,it is wrong with the error information "*subset.default(newerrdata, fac>12),can not find fac*" and g1 in read from the file as shown below *errdata<-scan("err.dat",what = list(mon=0,day=0,err=0,fac=0))* While I changed to *g1data<-subset(errdata, errdata$fac>12)*, there is no error message any more but it seems that *g1data* dooes be...