Hi Petr, Thanks for reply sorry for late message there was typo error the both values are -999.99 a[rowSums(a == -999.99) == 0, ], this solution works only if we have to remove certain value from matrix.
but if a<-matrix(c(1,2,3,5,-999.99,5,-999.99,6,1,5,9,1),nrow=4) a [,1] [,2] [,3] [1,] 1 -999.99 1 [2,] 2 5.00 5 [3,] 3 -999.99 9 [4,] 5 6.00 1 and I would like to remove whole row those have value -999.99 , this particular function does not work I got error Error in rowSums(a[, 2] == -999.99) : 'x' must be an array of at least two dimensions it need matrix, so is there any way to deal with this kind of problem. Cheers Uday -- View this message in context: http://r.789695.n4.nabble.com/removing-particular-row-from-matrix-tp4407401p4411348.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.