[R] Superscript and subscrib R for legend x-axis and y-axis and colour different subjects in longitudinal data with different colours

Mon Jul 31 14:44:46 CEST 2017

Hi

From: Rosa Oliveira [mailto:rosita21 at gmail.com]
Sent: Monday, July 31, 2017 11:47 AM
To: Martin Maechler <maechler at stat.math.ethz.ch>
Cc: PIKAL Petr <petr.pikal at precheza.cz>; r-help mailing list <r-help at r-project.org>
Subject: Re: [R] Superscript and subscrib R for legend x-axis and y-axis and colour different subjects in longitudinal data with different colours

Hi, everyone,

Before everything, thanks. Lots of thanks ;)!!!!

I don’t think you understood everything I need to do.

Most probably because you did not tell precisely what you really want.

I want to write t_i instead of "Day in ICU” [i subscript for t] and y_ij instead of "CRP (mg/dL)” [ij superscript for y]. The label of the axis… :(

So something like that.
plot(c(1:5), CRP7raw[1,], type = "n", xlim=c(1,5),
ylim=c(-10,5) ,
xlab=expression("t"[i]),
ylab=expression("y"^ij))
mtext(expression(lambda^2))

Cheers
Petr

Can you help me on that task?

Thanks!!!!!

Best,
Rosa Oliveira

On 31 Jul 2017, at 10:28, Martin Maechler <maechler at stat.math.ethz.ch<mailto:maechler at stat.math.ethz.ch>> wrote:

PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>>
   on Mon, 31 Jul 2017 09:11:18 +0000 writes:

Hi Martin see in line

-----Original Message----- From: Martin Maechler
[mailto:maechler at stat.math.ethz.ch] Sent: Monday, July
31, 2017 10:52 AM To: PIKAL Petr <petr.pikal at precheza.cz<mailto:petr.pikal at precheza.cz>>
Cc: Rosa Oliveira <rosita21 at gmail.com<mailto:rosita21 at gmail.com>>; r-help mailing
list <r-help at r-
   project.org<http://project.org>>

Subject: Re: [R] Superscript and subscrib R for legend
x-axis and y-axis and colour different subjects in
longitudinal data with different colours

Hi Rosa > something like

plot(1,1, sub=expression(lambda^"2"))

So with your example, do you want something like

plot(c(1:5), CRP7raw[1,], type = "n", xlim=c(1,5),
ylim=c(-10,5) , > xlab="Day in ICU", > ylab="CRP
(mg/dL)", > sub = mtext(expression(lambda^2)))

OOps!  Either plot( ..., sub = *) or plot( ... ) ;
mtext(*)

but not both!

You are right, I used a code from OP and did not much
think about it. Strangely enough, the code worked without
any complain. Probably mtext is "stronger" than sub and
overrides it.

Well, well, "the magic of R"  .....
Not quite:  mtext(..) is a valid function call that is evaluated
before plot() finishes; then it returns NULL invisibly, and
'plot(*, sub=NULL)' does nothing "coincidentally" (but for good
reasons)

Martin

Cheers Petr

CRP7graph <- apply(CRP7, 1, lines, col="gray")

Cheers > Petr

-----Original Message----- > > From: R-help
[mailto:r-help-bounces at r-project.org] On Behalf Of Rosa >

Oliveira > > Sent: Friday, July 28, 2017 5:07 PM > >
To: r-help mailing list <r-help at r-project.org<mailto:r-help at r-project.org>>;
R-help at r-project.org<mailto:R-help at r-project.org> > > Subject: [R] Superscript and
subscrib R for legend x-axis and y-axis > > and colour
different subjects in longitudinal data with different >

colours

I am trying to make a x-axis and y-axis titles with
both a special > > character and a subscript. I am not
being able to do this. I think > > its just a placing of
my parenthesis, but I've tried (seemingly) everything.

Even more, when I try the blog users code it works.

Is it because I’m using longitudinal data?

Even more. Is it possible to colour each one of the
15 lines with a > > different colour?

library(ggplot2) > > library(reshape) > >
library(lattice) > > library(gtable) > > library(grid)

attach(mtcars)

beta0 = rnorm (15, 1, .5) > > beta1 = rnorm (15, -1,
.5)

tempo = seq(1:5)

CRP7raw = matrix(NA, 15, 5) > > CRP7 = matrix(NA, 15,
5) > > CRP98raw = matrix(NA, 15, 5) > > CRP98 =
matrix(NA, 15, 5)

crp <- for (i in 1:15) { > > CRP7raw[i,] = beta0[i] +
beta1[i] * tempo > > CRP7[i,] = CRP7raw[i,] + rnorm(5, 0,
2.14)

CRP98raw[i,] = beta0[i] + beta1[i] * tempo > >
CRP98[i,] = CRP98raw[i,] + rnorm(5, 0, .1) > > }

# plot(c(1:5), CRP7raw[1,], type = "n", xlim=c(1,5),
ylim=c(-10,5) , > > # xlab="Day in ICU", > > # ylab="CRP
(mg/dL)", > > # sub = mtext(expression(paste(lambda)))

#
# CRP7graph <- apply(CRP7, 1, lines, col="gray")

# plot(c(1:5), CRP98raw[1,], type = "n", xlim=c(1,5),
ylim=c(-10,5), > > # xlab="Day in ICU", > > # ylab="CRP
(mg/dL)") > > # CRP98graph <- apply(CRP98, 1, lines,
col="gray")

par(mfrow=c(1,2))

plot(c(1:5), CRP7raw[1,], type = "n", xlim=c(1,5),
ylim=c(-10,5) , > > xlab="t_i", > > ylab="y_ij", > > sub
= "lambda = 0.7")

CRP7graph <- apply(CRP7, 1, lines, col="gray")

plot(c(1:5), CRP98raw[1,], type = "n", xlim=c(1,5),
ylim=c(-10,5), > > xlab="Day in ICU", > > ylab="CRP
(mg/dL", > > sub = "lambda = 0.98") > > CRP98graph <-
apply(CRP98, 1, lines, col="gray")

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______________________________________________ > >
R-help at r-project.org<mailto: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.

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