R: deleting rows
Clark Allan wrote:
hi all hopefully some one can help. assume that i imported the following data into R (say the data frame is called a) x1 x2 x3 1 NA 3 1 2 NA 1 2 3 3 NA 6 4 5 9 7 5 6 7 8 9 NA 7 9 How can i construct a new data frame that only contains those rows that does not contain the NA's? is these a quick way? ie x1 x2 x3 1 2 3 4 5 9 7 5 6 7 8 9 in this example we can simple use a[c(-1,-2,-4,-8),] but happens if we have a larger dataframe? we need to construct some kind of row indicator telling R which rows contains NA'S. is there an easier method?
na.omit(a) Uwe Ligges
/ allan ------------------------------------------------------------------------
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