Displaying 2 results from an estimated 2 matches for "192701".
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12701
2011 Oct 22
3
problem with as.Date
Dear all,
I would like to convert the first column of a dataframe to a date (original
format: year (4 digits) and month (last 2 digits))
>str(dat_FF)
'data.frame': 1022 obs. of 4 variables:
$ date : int 192607 192608 192609 192610 192611 192612 192701 192702
192703 192704 ...
$ Rm.Rf: num 2.69 2.52 0 -3.06 2.42 2.66 0 4.29 0.51 0.57 ...
$ SMB : num -2.49 -1.25 -1.38 -0.2 -0.34 -0.07 -0.11 0.35 -1.87 0.44 ...
$ HML : num -2.91 4.25 0.22 0.71 -0.4 -0.11 4.92 3.17 -2.92 1.33 ...
But
>dat_FF$date <- as.Date(as.character(dat_FF$date),...
2009 Jun 23
1
Error in .subset(x, j) : only 0's may be mixed with negative subscripts
...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)...