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typhoon
2011 Jan 25
5
Extract NA data rows
hi i have the following dataframe
x y
1 345
6 NA
8 123
32 123
12 NA
6 124
7 NA
and i want to extract the data rows which contains "NA" data, I tried
subset(dataframe,y=="NA")
but fail. if you know the answers, please let me know thanks.
typhoong
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2011 Sep 11
5
Link between Qt GUI and R
hi,
i want to build a Qt front-end GUI which communicates with R, and i am not
sure what i should use for the interface. There seems to be many ways:
R.dll, Rinside, Rcpp, RQt, Rtools... . what is the best way? please advice.
basically what i want to do is that, the Qt GUI will allow users to make
selection and enter numbers, these inputs will be fed to R, already written
.R files will perform