[R] reshaping a data frame
Abhishek Pratap
abhishek.vit at gmail.com
Mon Jun 10 08:15:48 CEST 2013
Hi Guys
I am trying to cast a data frame but not aggregate the rows for the
same variable.
here is a contrived example.
**input**
temp_df <- data.frame(names=c('foo','foo','foo'),variable=c('w','w','w'),value=c(34,65,12))
> temp_df
names variable value
1 foo w 34
2 foo w 65
3 foo w 12
###########
**Want this**
############
names w
foo 34
foo 65
foo 12
##
**getting this***
##
> cast(temp_df)
Aggregation requires fun.aggregate: length used as default
names w
1 foo 3
In real dataset the categorical column 'variable' will have many more
categorical variable.
Thanks!
-Abhi
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