How can I delete column yhat AND STILL retain the order of Response?

Hello,

1) We don't have access to your file firstRdata.csv so what I'll say 
is just an untested guess. You can post some of your data with the 
following R command.

dput(head(Response, 20))  # paste the output of this in a mail

2) First you use read.csv that outputs a data.frame and then do 
data.frame(Response). Useless. Response already is a df.

3) I believe the trouble you're facing comes from your use of 
attach(). This function is _never_ needed and is cause of all sorts of 
bugs. In particular, what you are ordering is the attached copy of 
Response, and all changes you do to it will only have effect on the 
copy. The original is left as it were.

So run the same code (with the obvious bug yhatResponse$yhat 
corrected) but eliminating the 'attach' instruction. And see if it 
reorders Response.

Hope this helps,

Rui Barradas


Em 01-04-2017 17:32, BR_email escreveu:

Response    <- read.csv("C:/R_Data/firstRdata.csv", sep=",", 
header=TRUE)
Response
Response    <- data.frame(Response)
attach(Response)
Response
Response    <- Response[order(-yhat),]
Response    <- Response[rev(order(yhatResponse$yhat)),]
Response