On Fri, 18 Feb 2005 13:00:40 +0100 T Petersen wrote: > Wow, I'm getting confused...The syntax Petr suggested does what I > wanted, but things are stille wrong...Maybe a bug? Let me explain. > > I got two vectors: > > x = c(3, 3, 3, 4, 3, 4, 3, 4, 3, 4) > > y = c(5, 2, 5, 5, 2, 2, 5, 5, 4, 2) > > then I do the barplot you suggest > > barplot(rbind(table(x), table(y)), beside=T) > > but things are wrong(there is no bar for catagory "3") and I get an > error message: Warning message: > number of columns of result > not a multiple of vector length (arg 1) in: > rbind(table(Quest1), table(Quest2)) > > Any ideas?
If x and y are categorical variables, you should tell R so (i.e., convert to a factor) and if both should have the same categories (i.e., levels) you can supply this information as well: R> x <- factor(x, levels = 2:5) R> y <- factor(y, levels = 2:5) Then, table() knows which categories to use: R> rbind(x = table(x), y = table(y)) 2 3 4 5 x 0 6 4 0 y 4 0 1 5 and also the barplot() call given above will do the right thing. Z > Petr Pikal wrote: > > >Hi > > > >If I understand correctly > > > >barplot(rbind(table(x), table(y)), beside=T) > > > >does what you want. > > > >Cheers > >Petr > > > > > > > >On 18 Feb 2005 at 7:51, T Petersen wrote: > > > > > > > >>Almost. Catagories aren't stacked - I would like to see that x has 2 > >>instances of "1" while y has 1 instance of "1". What's more, there > >are>now TWO distinct barplots - the left one shows x, while the right > >one>shows y. I could live with that, but what I'd ideally want is to > >have>x and y beside each other for EACH catagory - so for catagory > >"1" you>could see taht there are more x's than y's (two x's versus > >one y). But>thanks for the help > >> > >>Mulholland, Tom wrote: > >> > >> > >> > >>>barplot(matrix(c(x,y),ncol = 2),beside=T) > >>> > >>>Does this help > >>> > >>>?barplot notes > >>> > >>>height: either a vector or matrix of values describing the bars > >which>> make up the plot. If 'height' is a vector, the plot > >>> consists of a sequence of rectangular bars with heights > >>> given by the values in the vector. If 'height' is a > >matrix>> and 'beside' is 'FALSE' then each bar of the plot > >>> corresponds to a column of 'height', with the values in > >the>> column giving the heights of stacked "sub-bars" making > >up>> the bar. If 'height' is a matrix and 'beside' is > >'TRUE',>> then the values in each column are juxtaposed > >rather than>> stacked. > >>> > >>> > >>> > >>> > >>> > >>> > >>>>-----Original Message----- > >>>>From: T Petersen [mailto:[EMAIL PROTECTED] > >>>>Sent: Friday, 18 February 2005 1:35 PM > >>>>To: Kevin Wang > >>>>Cc: [email protected] > >>>>Subject: Re: [R] Barplot - Can't figure it out > >>>> > >>>> > >>>>Ups, it should of course be barplot() in my mail, not boxplot:-) > >>>> > >>>>Kevin Wang wrote: > >>>> > >>>> > >>>> > >>>> > >>>> > >>>>>Hi, > >>>>> > >>>>>T Petersen wrote: > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>>>Hi, > >>>>>> > >>>>>>I have two catagorical vectors like this; > >>>>>> > >>>>>>x = c(1, 2, 4, 2, 1) > >>>>>>y = c(2, 4, 2 ,4, 1) > >>>>>> > >>>>>>I want to set up a barplot with the catagories 1-4 > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>horizontally and > >>>> > >>>> > >>>> > >>>> > >>>>>>number of occurances vertically for each vector x,y. I've tried > >>>>>> > >>>>>>boxplot(table(x,y), beside=T) > >>>>>> > >>>>>>and > >>>>>> > >>>>>>boxplot(c(x,y), beside=T) > >>>>>> > >>>>>> > >>>>>> > >>>>>> > >>>>>Have you tried barplot(), instead of boxplot()??? > >>>>> > >>>>>Cheers, > >>>>> > >>>>>Kev > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > >>>>______________________________________________ > >>>>[email protected] mailing list > >>>>https://stat.ethz.ch/mailman/listinfo/r-help > >>>>PLEASE do read the posting guide! > >>>>http://www.R-project.org/posting-guide.html > >>>> > >>>> > >>>> > >>>> > >>>> > >>>______________________________________________ > >>>[email protected] mailing list > >>>https://stat.ethz.ch/mailman/listinfo/r-help > >>>PLEASE do read the posting guide! > >>>http://www.R-project.org/posting-guide.html > >>> > >>> > >>> > >>> > >>> > >>______________________________________________ > >>[email protected] mailing list > >>https://stat.ethz.ch/mailman/listinfo/r-help > >>PLEASE do read the posting guide! > >>http://www.R-project.org/posting-guide.html > >> > >> > > > >Petr Pikal > >[EMAIL PROTECTED] > > > >______________________________________________ > >[email protected] mailing list > >https://stat.ethz.ch/mailman/listinfo/r-help > >PLEASE do read the posting guide! > >http://www.R-project.org/posting-guide.html > > > > > > > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
