Hello, I have a problem with data reshaping. Here's my data
DF <- structure(list(idvar1 = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L), .Label = c("patient1", "patient2" ), class = "factor"), idvar2 = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L), .Label = c("dob", "hog"), class = "factor"), eka1 = structure(c(NA, NA, NA, NA, NA, NA, NA, NA, 2L, 1L, NA, NA, NA, NA), .Label = c("as", "df"), class = "factor"), eka2 = structure(c(NA, NA, NA, NA, NA, NA, NA, NA, 2L, 1L, NA, NA, NA, NA), .Label = c("as", "df"), class = "factor"), eka3 = structure(c(NA, NA, NA, NA, NA, NA, NA, NA, 2L, 1L, NA, NA, NA, NA), .Label = c("as", "df"), class = "factor"), toka1 = structure(c(NA, NA, NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, NA, 2L), .Label = c("as", "fg"), class = "factor"), toka2 = structure(c(NA, NA, NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, NA, 2L), .Label = c("as", "fg"), class = "factor"), toka3 = structure(c(NA, NA, NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, NA, 2L), .Label = c("as", "fg"), class = "factor"), kol1 = structure(c(NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, 1L, 2L, NA, NA), .Label = c("hj", "ht"), class = "factor"), kol2 = structure(c(NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, 1L, 2L, NA, NA), .Label = c("hj", "ht"), class = "factor"), kol3 = structure(c(NA, NA, NA, NA, 1L, 2L, NA, NA, NA, NA, 1L, 2L, NA, NA), .Label = c("hj", "th"), class = "factor")), .Names = c("idvar1", "idvar2", "eka1", "eka2", "eka3", "toka1", "toka2", "toka3", "kol1", "kol2", "kol3"), class = "data.frame", row.names = c(NA, -14L)) I'm trying to omit NA:s in this DF and produce a reduced DF. The problem is that I cannot completely omit NA rows. I tried library(reshape) g <- melt(DF, id=c("idvar1", "idvar2")) g <- na.omit(g) reshape(g, idvar=c("idvar1", "idvar2"), timevar="variable", direction="wide") But this drops the second row. This is the resulting DF I should be getting res <- structure(list(idvar1 = structure(c(1L, 1L, 2L, 2L), .Label = c("patient1", "patient2"), class = "factor"), idvar2 = structure(c(1L, 1L, 2L, 2L), .Label = c("dob", "hog"), class = "factor"), eka1 = structure(c(NA, NA, 2L, 1L), .Label = c("as", "df"), class = "factor"), eka2 = structure(c(NA, NA, 2L, 1L), .Label = c("as", "df"), class = "factor"), eka3 = structure(c(NA, NA, 2L, 1L), .Label = c("as", "df"), class = "factor"), toka1 = structure(c(1L, 2L, NA, 2L), .Label = c("as", "fg"), class = "factor"), toka2 = structure(c(1L, 2L, NA, 2L), .Label = c("as", "fg"), class = "factor"), toka3 = structure(c(1L, 2L, NA, 2L), .Label = c("as", "fg"), class = "factor"), kol1 = structure(c(1L, 2L, 1L, 2L), .Label = c("hj", "ht"), class = "factor"), kol2 = structure(c(1L, 2L, 1L, 2L), .Label = c("hj", "ht"), class = "factor"), kol3 = structure(c(1L, 2L, 1L, 2L), .Label = c("hj", "th"), class = "factor")), .Names = c("idvar1", "idvar2", "eka1", "eka2", "eka3", "toka1", "toka2", "toka3", "kol1", "kol2", "kol3"), class = "data.frame", row.names = c(NA, -4L)) Any ideas how to proceed? Many thanks Lauri ______________________________________________ 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.