I have a data set called datastep4 with 211484 rows and 95 columns
> dim(datastep4)
[1] 211484 95
The first few column names are given below, note the first one is
"RESPONDED"
> names(datastep4)[1:5]
[1] "RESPONDED" "VAR_30" "VAR_31" "VAR_32" "VAR_33"
A table of RESPONDED shows mostly zeros
> table(datastep4$RESPONDED)
0 1
210582 902
I reduce the data set by pulling out the RESPONDED column, then verify
all is well
> test <- datastep4[,-datastep4$RESPONDED]
> dim(test)
[1] 211484 94
> names(test)[1:5]
[1] "VAR_30" "VAR_31" "VAR_32" "VAR_33" "VAR_34"
> class(test)
[1] "data.frame"
> test[1:10,1:10]
VAR_30 VAR_31 VAR_32 VAR_33 VAR_34 VAR_37 VAR_38 VAR_42 VAR_45 VAR_46
1 0 0 0 0 15198 0 0 6 NA
3 0 0 0 0 8491 0 0 4 NA
4 0 0 0 0 0 0 0 0 NA
5 0 0 0 0 67671 0 0 7 NA
7 0 0 0 0 1334 0 0 1 NA
9 0 0 0 0 0 0 0 2 NA
10 0 0 0 0 24169 0 0 10 NA
11 0 0 0 0 438 0 0 3 NA
12 0 0 0 0 2158 0 0 1 NA
13 0 0 0 0 18804 0 0 4 NA
>
If I reduce the data frame datastep4 by removing a few records where the
variable G102 is not 1, and removing the column named "G102" (which is
column 84),
I end up with a smaller set called datastep5 with 192701 rows and 94
columns
> datastep5 <- datastep4[datastep4$G102 != 1,-84]
>
> dim(datastep5)
[1] 192701 94
> names(datastep5)[1:5]
[1] "RESPONDED" "VAR_30" "VAR_31" "VAR_32" "VAR_33"
> table(datastep5$RESPONDED)
0 1
141096 584
Now, if I want to reduce this data set by removing the RESPONDED column
as was done for datastep4, it blows up
> test <- datastep5[,-datastep5$RESPONDED]
Error in .subset(x, j) : only 0's may be mixed with negative subscripts
>
I cannot find anything different about this new data set, other than a
few rows and column G104 removed and the error message it too vague.
Any ideas are greatly appreciated!
Russell Ivory
Merrick Bank
South Jordan, UT
****************************************************************************This
e-mail and any files transmitted with it are confidential and are intended
solely for the use of the individual or entity to whom it is addressed. If you
are not the intended recipient or the person responsible for delivering the
e-mail to the intended recipient, be advised that you have received this e-mail
in error, and that any use, dissemination, forwarding, printing, or copying of
this e-mail is strictly prohibited. If you received this e-mail in error,
please return the e-mail to the sender at Merrick Bank and delete it from your
computer. Although Merrick Bank attempts to sweep e-mail and attachments for
viruses, it does not guarantee that either are virus-free and accepts no
liability for any damage sustained as a result of viruses.
[[alternative HTML version deleted]]
______________________________________________
[email protected] 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.
