Hi Petr; Thanks for this. I have used the following code to overcome with the problem
a$Meta <- factor(a$Meta, levels=a[order(a$Superpath,decreasing=T),]$Meta) Regards, Greg On Mon, Feb 19, 2018 at 4:04 PM, PIKAL Petr <petr.pi...@precheza.cz> wrote: > Hi > > > > When you load external file to R, character variables are converted to > factors by default and alphabetically sorted. I have limited connection to > internet, so I cannot find the answer, you could try it yourself. Maybe you > could try not to convert vector with names to factor, which, for plotting > issue is not different from factor coding. > > > > See ?read.table for details > > > > However I am not sure if it stays in original order. > > > > Cheers > > Petr > > > > *From:* greg holly [mailto:mak.hho...@gmail.com] > *Sent:* Friday, February 16, 2018 6:28 PM > > *To:* PIKAL Petr <petr.pi...@precheza.cz> > *Cc:* r-help mailing list <r-help@r-project.org> > *Subject:* Re: [R] Putting 733 discrete categories on Y-axis in qqplot2 > as they are > > > > Hi Petr; > > > > I would like to get a plot with names as they are in the original file. > They are chemical names and I have 733 in the my file. For example, let me > give to chemical names "*2-hydroxybutyrate/2-hydroxyisobutyrate*" and > "*palmitoyl-arachidonoyl-glycerol > (16:0/20:4) [1]**" .So, what should I put [c(2,3,1)] part in the > command: iris$MySpecies<-factor(iris$Species, > levels(iris$Species)[c(2,3,1)]) > > > > Regards, > > > > Greg > > > > On Fri, Feb 16, 2018 at 6:13 PM, PIKAL Petr <petr.pi...@precheza.cz> > wrote: > > Hi > > > > What do you mean „without reordering the names“. Factor variable is > ordered according to its levels and you can freely change the ordering. > This is why factors are useful and worth to use in many cases instead of > character vectors. > > > > See this result > > > > > iris$MySpecies<-factor(iris$Species, levels(iris$Species)[c(2,3,1)]) > > > p<-ggplot(iris, aes(x=Sepal.Length, y=Species)) > > > p+geom_point() > > > p<-ggplot(iris, aes(x=Sepal.Length, y=MySpecies)) > > > p+geom_point() > > > > > Cheers > > Petr > > > > *From:* greg holly [mailto:mak.hho...@gmail.com] > *Sent:* Friday, February 16, 2018 3:56 PM > *To:* PIKAL Petr <petr.pi...@precheza.cz> > *Cc:* r-help mailing list <r-help@r-project.org> > *Subject:* Re: [R] Putting 733 discrete categories on Y-axis in qqplot2 > as they are > > > > Hi Petr; > > > > Thanks. I do save the result in pdf by using the following command. > > > > ggsave("z7.pdf", p4, height = 95, width = 8, device=pdf, limitsize = > F,dpi=300) > > > > I can achieve the y axis with 733 levels. But I need get the plot > WITHOUT reordering the names. > > > > Regards, > > > > Greg > > > > On Fri, Feb 16, 2018 at 3:39 PM, PIKAL Petr <petr.pi...@precheza.cz> > wrote: > > Hi > > > -----Original Message----- > > From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of greg > holly > > Sent: Thursday, February 15, 2018 3:58 PM > > To: r-help mailing list <r-help@r-project.org> > > Subject: [R] Putting 733 discrete categories on Y-axis in qqplot2 as > they are > > > > Hi all; > > > > I have 733 discrete categories that will go on y-axis in ggplot2. I used > the > > following command to put the name of x-axis. > > > > scale_x_discrete (limits = c("SI", "HOMAIR", > > "AIR","HOMAB","SG","DI","FI","FG")) > > > > Since there are only 8 categories on x it was easy to do. Is there any > way to do > > the same for 733 discrete categories for y-axis. Essentially I did not > want to > > order categories. I would like to put the name of categories as they are. > > You probably can achieve the y axis with 733 levels if you do not use > limits in scale. > > Just from curiosity, standard page has 30 lines, so your axis should > stretch to more than 20 pages. Or you need to shrink your y axis 20 times. > Both options will give you unreadable results. > > Cheers > Petr > > > > > Best regards, > > > > Greg > > > > > > > ------------------------------ > > Tento e-mail a jakékoliv k němu připojené dokumenty jsou důvěrné a jsou > určeny pouze jeho adresátům. > Jestliže jste obdržel(a) tento e-mail omylem, informujte laskavě > neprodleně jeho odesílatele. 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