Hi, I was wondering if it's possible to get the row numbers from a filtering. Here's an example:
# give me the rows with sepal.length == 6.2 iris[(iris[,1]==6.2),] # output Sepal.Length Sepal.Width Petal.Length Petal.Width Species 69 6.2 2.2 4.5 1.5 versicolor 98 6.2 2.9 4.3 1.3 versicolor 127 6.2 2.8 4.8 1.8 virginica 149 6.2 3.4 5.4 2.3 virginica What I really want is that it return the row numbers: 69, 98, 127, 149. Thanks in advance, Martin ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html