[R] correcting a few data in an unreshaped data frame
Mr. Natural
drstrong at ucdavis.edu
Wed Jun 9 03:36:43 CEST 2010
Thanks for the excellent help on my recent question on this topic in which
the data frame had been reshaped by cast.
Now, I would like to access and change erroneous data in a data frame that
has not been reshaped.
The file is lupepn1, with identifier variables bushno & bout and
dependent variables survival, and wwG
I know the bushno and bout of the erroneous dependent survival and wwG data.
I could correct these in the csv file before read.data, but I would like to
learn some more R
head(lupepn1)
bushno bout survival wwG
2 1 2 0 0
3 1 3 0 0
4 1 4 0 0
5 1 5 0 0
6 1 6 0 2
7 1 7 0 0
> str(lupepn1)
'data.frame': 5023 obs. of 4 variables:
$ bushno : int 1 1 1 1 1 1 1 2 2 2 ...
$ bout : int 2 3 4 5 6 7 8 1 2 3 ...
$ survival: int 0 0 0 0 0 0 0 1 1 1 ...
$ wwG : int 0 0 0 0 2 0 0 5 1 0 ...
- attr(*, "na.action")=Class 'omit' Named int [1:81] 1 49 65 177 201 257
337 417 449 505 ...
.. ..- attr(*, "names")= chr [1:81] "1" "49" "65" "177" ...
Your kind advice is very much appreciated.
Mr. Natural.
>
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