R tends to see the ordering of factor levels as a property of the data rather than a property of the table/graph. So it is generally best to modify the data object (factor) to represent what you want rather than look for an option in the table/plot function (this will also be more efficient in the long run). Here is a simple example using the reorder function:
> tmp <- factor(sample( letters[1:5], 100, TRUE )) > table(tmp) tmp a b c d e 20 20 19 18 23 > tmp2 <- reorder(tmp, rep(1,length(tmp)), sum) > table(tmp2) tmp2 d c a b e 18 19 20 20 23 > tmp2 <- reorder(tmp, rep(-1,length(tmp)), sum) > table(tmp2) tmp2 e a b c d 23 20 20 19 18 On Wed, Mar 7, 2012 at 9:46 PM, Manish Gupta <mandecent.gu...@gmail.com> wrote: > Hi, > > I am working on categorical data with column as disease name(categaory). > > My input data is > [1] Acute lymphoblastic leukemia (childhood) > [2] Adiponectin levels > [3] Adiponectin levels > [4] Adiponectin levels > [5] Adiponectin levels > [6] Adiponectin levels > [7] Adiposity > [8] Adiposity > [9] Adiposity > [10] Adiposity > [11] Age-related macular degeneration > [12] Age-related macular degeneration > [13] Aging (time to death) > [14] Aging (time to event) > [15] Aging (time to event) > [16] Aging (time to event) > [17] Aging (time to event) > [18] AIDS > [19] AIDS > [20] AIDS > ..... > > > when i use table command, i get > > > [,1] > Acute lymphoblastic leukemia (childhood) 1 > Adiponectin levels > 5 > Adiposity > 4 > Age-related macular degeneration > 2 > Aging (time to death) > 1 > ...... > > But i need to sort this table by frequency and need to plot a histogram with > lable first column (e.g. Adiposity , Age-related macular degeneration as > bar name). How can i do it? > > Regards > > -- > View this message in context: > http://r.789695.n4.nabble.com/How-to-sort-frequency-distribution-table-tp4455595p4455595.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. -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.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.