Displaying 1 result from an estimated 1 matches for "tp3235568p3235568".
2011 Jan 25
5
Extract NA data rows
...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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