[R] Including percentage values inside columns of a histogram
Paul Bernal
p@u|bern@|07 @end|ng |rom gm@||@com
Tue Aug 17 01:14:13 CEST 2021
Dear Jim,
Thank you so much for your kind reply. Yes, this is what I am looking for,
however, can´t see clearly how the bars correspond to the bins in the
x-axis. Maybe there is a way to align the amounts so that they match the
columns, sorry if I sound picky, but just want to learn if there is a way
to accomplish this.
Best regards,
Paul
El lun, 16 ago 2021 a las 17:57, Jim Lemon (<drjimlemon using gmail.com>)
escribió:
> Hi Paul,
> I just worked out your first request:
>
> datasetregs<-<-structure(list(Date = structure(c(1L, 1L, 1L, 1L, 1L, 1L,
> 2L,
> 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
> 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
> 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L,
> 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L,
> 3L, 3L, 3L), .Label = c("AF 2017", "AF 2020", "AF 2021"), class =
> "factor"),
> Amount = c(40100, 101100, 35000, 40100, 15000, 45100, 40200,
> 15000, 35000, 35100, 20300, 40100, 15000, 67100, 17100, 15000,
> 15000, 50100, 35100, 15000, 15000, 15000, 15000, 15000, 15000,
> 15000, 15000, 15000, 15000, 15000, 15000, 15000, 15000, 15000,
> 15000, 15000, 20100, 15000, 15000, 15000, 15000, 15000, 15000,
> 16600, 15000, 15000, 15700, 15000, 15000, 15000, 15000, 15000,
> 15000, 15000, 15000, 15000, 20200, 21400, 25100, 15000, 15000,
> 15000, 15000, 15000, 15000, 25600, 15000, 15000, 15000, 15000,
> 15000, 15000, 15000, 15000)), row.names = c(NA, -74L), class =
> "data.frame")
> histval<-with(datasetregs, hist(Amount, groups=Date, scale="frequency",
> breaks="Sturges", col="darkgray"))
> library(plotrix)
> histpcts<-paste0(round(100*histval$counts/sum(histval$counts),1),"%")
> barlabels(histval$mids,histval$counts,histpcts)
>
> I think that's what you asked for:
>
> Jim
>
> On Tue, Aug 17, 2021 at 8:44 AM Paul Bernal <paulbernal07 using gmail.com>
> wrote:
> >
> > This is way better, now, how could I put the frequency labels in the
> > columns as a percentage, instead of presenting them as counts?
> >
> > Thank you so much.
> >
> > Paul
> >
> > El lun, 16 ago 2021 a las 17:33, Rui Barradas (<ruipbarradas using sapo.pt>)
> > escribió:
> >
> > > Hello,
> > >
> > > You forgot to cc the list.
> > >
> > > Here are two ways, both of them apply hist() and text() to Amount split
> > > by Date. The return value of hist is saved because it's a list with
> > > members the histogram's bars midpoints and the counts. Those are used
> to
> > > know where to put the text labels.
> > > A vector lbls is created to get rid of counts of zero.
> > >
> > > The main difference between the two ways is the histogram's titles.
> > >
> > >
> > > old_par <- par(mfrow = c(1, 3))
> > > h_list <- with(datasetregs, tapply(Amount, Date, function(x){
> > > h <- hist(x)
> > > lbls <- ifelse(h$counts == 0, NA_integer_, h$counts)
> > > text(h$mids, h$counts/2, labels = lbls)
> > > }))
> > > par(old_par)
> > >
> > >
> > >
> > > old_par <- par(mfrow = c(1, 3))
> > > sp <- split(datasetregs, datasetregs$Date)
> > > h_list <- lapply(seq_along(sp), function(i){
> > > hist_title <- paste("Histogram of", names(sp)[i])
> > > h <- hist(sp[[i]]$Amount, main = hist_title)
> > > lbls <- ifelse(h$counts == 0, NA_integer_, h$counts)
> > > text(h$mids, h$counts/2, labels = lbls)
> > > })
> > > par(old_par)
> > >
> > >
> > > Hope this helps,
> > >
> > > Rui Barradas
> > >
> > > Às 23:16 de 16/08/21, Paul Bernal escreveu:
> > > > Dear Rui,
> > > >
> > > > The hist() function comes from the graphics package, from what I
> could
> > > > see. The thing is that I want to divide the Amount column into
> several
> > > > bins and then generate three different histograms, one for each AF
> > > > period (AF refers to fiscal years). As you can see, the data contains
> > > > three fiscal years (2017, 2020 and 2021). I want to see the
> percentage
> > > > of cases that fall into different amount categories, from 15,000 and
> > > > below, 16,000 to 17,000, from 18,000 to 19,000, and so on.
> > > >
> > > > Thanks for your kind help.
> > > >
> > > > Paul
> > > >
> > > > El lun, 16 ago 2021 a las 17:07, Rui Barradas (<ruipbarradas using sapo.pt
> > > > <mailto:ruipbarradas using sapo.pt>>) escribió:
> > > >
> > > > Hello,
> > > >
> > > > The function Hist comes from what package?
> > > >
> > > > Are you sure you don't want a bar plot?
> > > >
> > > >
> > > > agg <- aggregate(Amount ~ Date, datasetregs, sum)
> > > > bp <- barplot(Amount ~ Date, agg)
> > > > with(agg, text(bp, Amount/2, labels = Amount))
> > > >
> > > >
> > > > Hope this helps,
> > > >
> > > > Rui Barradas
> > > >
> > > > Às 22:54 de 16/08/21, Paul Bernal escreveu:
> > > > > Hello everyone,
> > > > >
> > > > > I am currently working with R version 4.1.0 and I am trying to
> > > > include
> > > > > (inside the columns of the histogram), the percentage
> > > > distribution and I
> > > > > want to generate three histograms, one for each fiscal year
> (in
> > > > the Date
> > > > > column, there are three fiscal year AF 2017, AF 2020 and AF
> > > > 2021). However,
> > > > > I can´t seem to accomplish this.
> > > > >
> > > > > Here is my data:
> > > > >
> > > > > structure(list(Date = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 2L,
> > > > > 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
> 2L,
> > > > > 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L,
> 2L,
> > > > > 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L,
> 3L,
> > > > > 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L, 3L,
> 3L,
> > > > > 3L, 3L, 3L), .Label = c("AF 2017", "AF 2020", "AF 2021"),
> class =
> > > > > "factor"),
> > > > > Amount = c(40100, 101100, 35000, 40100, 15000, 45100,
> 40200,
> > > > > 15000, 35000, 35100, 20300, 40100, 15000, 67100, 17100,
> > > 15000,
> > > > > 15000, 50100, 35100, 15000, 15000, 15000, 15000, 15000,
> > > 15000,
> > > > > 15000, 15000, 15000, 15000, 15000, 15000, 15000, 15000,
> > > 15000,
> > > > > 15000, 15000, 20100, 15000, 15000, 15000, 15000, 15000,
> > > 15000,
> > > > > 16600, 15000, 15000, 15700, 15000, 15000, 15000, 15000,
> > > 15000,
> > > > > 15000, 15000, 15000, 15000, 20200, 21400, 25100, 15000,
> > > 15000,
> > > > > 15000, 15000, 15000, 15000, 25600, 15000, 15000, 15000,
> > > 15000,
> > > > > 15000, 15000, 15000, 15000)), row.names = c(NA, -74L),
> class
> > > =
> > > > > "data.frame")
> > > > >
> > > > > I would like to modify the following script:
> > > > >
> > > > >> with(datasetregs, Hist(Amount, groups=Date,
> scale="frequency",
> > > > > + breaks="Sturges", col="darkgray"))
> > > > >
> > > > > #The only thing missing here are the percentages
> corresponding to
> > > > each bin
> > > > > (I would like to see the percentages inside each column, or on
> > > > top outside
> > > > > if possible)
> > > > >
> > > > > Any help will be greatly appreciated.
> > > > >
> > > > > Best regards,
> > > > >
> > > > > Paul.
> > > > >
> > > > > [[alternative HTML version deleted]]
> > > > >
> > > > > ______________________________________________
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> code.
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> > >
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
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