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margindollars
2018 Jun 01
0
Regroup and create new dataframe
...nnesota <nguy2952 at umn.edu>
Sent: Friday, June 1, 2018 2:13 PM
To: David L Carlson <dcarlson at tamu.edu>
Subject: Re: [R] Regroup and create new dataframe
Hi David,
your example is perfect!
I am still learning so please stay with me.
So, I am running a regression model:
model1 = lm(MarginDollars ~ Region + Product_Name, group_PrivateLabel)
I have an error message:?
Error in `contrasts<-`(`*tmp*`, value = contr.funs[1 + isOF[nn]]) :?
? contrasts can be applied only to factors with 2 or more levels
> str(group_PrivateLabel)
'data.frame': 14802 obs. of? 12 variables:
?$ ACCTG_...