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- r - Using dcast to widen a data frame - Stack Overflow
Using dcast to widen a data frame Ask Question Asked 12 years, 8 months ago Modified 6 years, 3 months ago
- How can I use dcast based on multiple columns? - Stack Overflow
And I want to create new columns based first on the order within a specific year, but then sequentially on the order if I shift it As you can see value=16 which starts as order=3 on row 1, is logged as order = 2 on row 2, etc
- Customize names of columns created by dcast. data. table
Customize names of columns created by dcast data table Ask Question Asked 11 years, 5 months ago Modified 1 year, 8 months ago
- R: Melt and Dcast - Stack Overflow
R: Melt and Dcast Ask Question Asked 9 years, 1 month ago Modified 8 years, 11 months ago
- r - on dcast () argument value. var - Stack Overflow
So, I used dcast() on a dataframe last time in which one column was ID and the other multiple codes assigned per id My df1 looked like this: ID codes gfreq 123 FGV34 0 988 123 FGV34
- r - can the value. var in dcast be a list or have multiple value . . .
dcast data table(dt, x1~x2, value var=list('var1','var2','var3')) But we get an error: 'value var' must be a character vector of length 1 Is there such a feature, and if not, what would be other one-liner alternatives? EDIT: In reply to the comments below There are situations where you have multiple variables that you want to treat as the value var Imagine for example that x2 consists of 3
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