Dear all, I am using boxplot to draw some data. Would be possible to have the X-axis linear (as in a scatter plot) instead of the standard categorical axis? The data I have is subdivided into three groups at the numerical values 1, 3, 5; boxplot treats these as categorical values; in fact, I can write my own labels simply by using the values 1, 2, 3 for the position of the labels as in the example. Thank you,>>>># generate data.frames A = c(70, 22, 4, 21, 29, 35, 24, 20, 9, 21, 22, 12, 20, 21, 13, 18, 15, 3, 9, 23, 6, 5, 2, 24, 25, 21, 16, 0, 4, 1) B = c(17, 21, 70, 6, 23, 10, 8, 5, 22, 5, 21, 5, 19, 9, 23, 24, 11, 13, 7, 15, 25, 9, 13, 14, 11, 9, 12, 0, 5, 9) C = c(17, 8, 30, 22, 11, 32, 33, 8, 160, 11, 35, 7, 36, 15, 11, 25, 16, 6, 38, 19, 35, 30, 12, 27, 22, 32, 47, 39, 31, 26) X = rep(c(1, 3, 5),30*3) dfA <- data.frame(X, c(A, B, C)) names(dfA) <- c("X", "Y") par(mfrow=c(2,1)) boxplot(dfA$Y ~ dfA$X, ylim=c(0, 80), col="green", ylab="Y-values", xlab="X-values", main="usual X labels" ) boxplot(dfA$Y ~ dfA$X, ylim=c(0, 80), col="green", ylab="Y-values", xlab="X-values", main="custom X labels", xaxt="n" ) x.lab = c("A", "B", "C") x.pos = c(1, 2, 3) axis(side=1, at=x.pos, lab=x.lab, cex.axis=1) -- Best regards, Luigi
Richard M. Heiberger
2018-Sep-28 13:45 UTC
[R] Boxplot with linear (not categorical) x-axis
install.packages("HH")
library(HH)
system.file("demo/bwplot.examples.r", package="HH")
demo("bwplot.examples", package="HH", ask=FALSE)
## your example
dfA <- data.frame(X, Y=c(A, B, C))
dfA$X.factor <- factor(dfA$X)
position(dfA$X.factor) <- c(1,3,5)
bwplot(Y ~ X.factor, panel=panel.bwplot.intermediate.hh, data=dfA, xlim=c(0,6))
On Fri, Sep 28, 2018 at 6:05 AM, Luigi Marongiu
<marongiu.luigi at gmail.com> wrote:> Dear all,
> I am using boxplot to draw some data. Would be possible to have the
> X-axis linear (as in a scatter plot) instead of the standard
> categorical axis?
> The data I have is subdivided into three groups at the numerical
> values 1, 3, 5; boxplot treats these as categorical values; in fact, I
> can write my own labels simply by using the values 1, 2, 3 for the
> position of the labels as in the example.
> Thank you,
>
>>>>>
> # generate data.frames
> A = c(70, 22, 4, 21, 29, 35, 24, 20, 9, 21,
> 22, 12, 20, 21, 13, 18, 15, 3, 9, 23,
> 6, 5, 2, 24, 25, 21, 16, 0, 4, 1)
> B = c(17, 21, 70, 6, 23, 10, 8, 5, 22, 5,
> 21, 5, 19, 9, 23, 24, 11, 13, 7, 15,
> 25, 9, 13, 14, 11, 9, 12, 0, 5, 9)
> C = c(17, 8, 30, 22, 11, 32, 33, 8, 160, 11,
> 35, 7, 36, 15, 11, 25, 16, 6, 38, 19,
> 35, 30, 12, 27, 22, 32, 47, 39, 31, 26)
> X = rep(c(1, 3, 5),30*3)
> dfA <- data.frame(X, c(A, B, C))
> names(dfA) <- c("X", "Y")
> par(mfrow=c(2,1))
> boxplot(dfA$Y ~ dfA$X,
> ylim=c(0, 80),
> col="green",
> ylab="Y-values",
> xlab="X-values",
> main="usual X labels"
> )
> boxplot(dfA$Y ~ dfA$X,
> ylim=c(0, 80),
> col="green",
> ylab="Y-values",
> xlab="X-values",
> main="custom X labels",
> xaxt="n"
> )
> x.lab = c("A", "B", "C")
> x.pos = c(1, 2, 3)
> axis(side=1, at=x.pos,
> lab=x.lab, cex.axis=1)
>
> --
> Best regards,
> Luigi
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
Use the 'at' argument to boxplot. E.g.,> x <- rep(c(2,4,8,16), c(5,10,20,30)) > y <- seq_along(x) > par(mfrow=c(2,1)) > boxplot(y~x, at=unique(x)) > boxplot(y~x)Bill Dunlap TIBCO Software wdunlap tibco.com On Fri, Sep 28, 2018 at 3:05 AM, Luigi Marongiu <marongiu.luigi at gmail.com> wrote:> Dear all, > I am using boxplot to draw some data. Would be possible to have the > X-axis linear (as in a scatter plot) instead of the standard > categorical axis? > The data I have is subdivided into three groups at the numerical > values 1, 3, 5; boxplot treats these as categorical values; in fact, I > can write my own labels simply by using the values 1, 2, 3 for the > position of the labels as in the example. > Thank you, > > >>>> > # generate data.frames > A = c(70, 22, 4, 21, 29, 35, 24, 20, 9, 21, > 22, 12, 20, 21, 13, 18, 15, 3, 9, 23, > 6, 5, 2, 24, 25, 21, 16, 0, 4, 1) > B = c(17, 21, 70, 6, 23, 10, 8, 5, 22, 5, > 21, 5, 19, 9, 23, 24, 11, 13, 7, 15, > 25, 9, 13, 14, 11, 9, 12, 0, 5, 9) > C = c(17, 8, 30, 22, 11, 32, 33, 8, 160, 11, > 35, 7, 36, 15, 11, 25, 16, 6, 38, 19, > 35, 30, 12, 27, 22, 32, 47, 39, 31, 26) > X = rep(c(1, 3, 5),30*3) > dfA <- data.frame(X, c(A, B, C)) > names(dfA) <- c("X", "Y") > par(mfrow=c(2,1)) > boxplot(dfA$Y ~ dfA$X, > ylim=c(0, 80), > col="green", > ylab="Y-values", > xlab="X-values", > main="usual X labels" > ) > boxplot(dfA$Y ~ dfA$X, > ylim=c(0, 80), > col="green", > ylab="Y-values", > xlab="X-values", > main="custom X labels", > xaxt="n" > ) > x.lab = c("A", "B", "C") > x.pos = c(1, 2, 3) > axis(side=1, at=x.pos, > lab=x.lab, cex.axis=1) > > -- > Best regards, > Luigi > > ______________________________________________ > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. >[[alternative HTML version deleted]]
Thank you. On Fri, Sep 28, 2018 at 5:34 PM William Dunlap <wdunlap at tibco.com> wrote:> > Use the 'at' argument to boxplot. E.g., > > > x <- rep(c(2,4,8,16), c(5,10,20,30)) > > y <- seq_along(x) > > par(mfrow=c(2,1)) > > boxplot(y~x, at=unique(x)) > > boxplot(y~x) > > > Bill Dunlap > TIBCO Software > wdunlap tibco.com > > On Fri, Sep 28, 2018 at 3:05 AM, Luigi Marongiu <marongiu.luigi at gmail.com> wrote: >> >> Dear all, >> I am using boxplot to draw some data. Would be possible to have the >> X-axis linear (as in a scatter plot) instead of the standard >> categorical axis? >> The data I have is subdivided into three groups at the numerical >> values 1, 3, 5; boxplot treats these as categorical values; in fact, I >> can write my own labels simply by using the values 1, 2, 3 for the >> position of the labels as in the example. >> Thank you, >> >> >>>> >> # generate data.frames >> A = c(70, 22, 4, 21, 29, 35, 24, 20, 9, 21, >> 22, 12, 20, 21, 13, 18, 15, 3, 9, 23, >> 6, 5, 2, 24, 25, 21, 16, 0, 4, 1) >> B = c(17, 21, 70, 6, 23, 10, 8, 5, 22, 5, >> 21, 5, 19, 9, 23, 24, 11, 13, 7, 15, >> 25, 9, 13, 14, 11, 9, 12, 0, 5, 9) >> C = c(17, 8, 30, 22, 11, 32, 33, 8, 160, 11, >> 35, 7, 36, 15, 11, 25, 16, 6, 38, 19, >> 35, 30, 12, 27, 22, 32, 47, 39, 31, 26) >> X = rep(c(1, 3, 5),30*3) >> dfA <- data.frame(X, c(A, B, C)) >> names(dfA) <- c("X", "Y") >> par(mfrow=c(2,1)) >> boxplot(dfA$Y ~ dfA$X, >> ylim=c(0, 80), >> col="green", >> ylab="Y-values", >> xlab="X-values", >> main="usual X labels" >> ) >> boxplot(dfA$Y ~ dfA$X, >> ylim=c(0, 80), >> col="green", >> ylab="Y-values", >> xlab="X-values", >> main="custom X labels", >> xaxt="n" >> ) >> x.lab = c("A", "B", "C") >> x.pos = c(1, 2, 3) >> axis(side=1, at=x.pos, >> lab=x.lab, cex.axis=1) >> >> -- >> Best regards, >> Luigi >> >> ______________________________________________ >> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >> 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. > >-- Best regards, Luigi