Unadulterated plot
To All, I'm using R 2.8.1. I have attached two images, one shows what I get and the other shows what I want. All I want is the plotting region. Surely there must be a way of plotting individual regions/components in R? Patrizio, I prefer filled.contour() for my data. I still have the same problem (a legend to the right) if I use image() then contour()! Regards, James ps. No need for apologies Simon :D I'm grateful for any assistance fruitless or not.
Patrizio Frederic wrote:
James,
as I previously told you in my broken English, probably the function
you're looking for is not filled.contour but image and contour
The following code makes exactly what you ask for
data(akima)
akima
akima.smooth <-
with(akima, interp(x, y, z, xo=seq(0,25, length=500),
yo=seq(0,20, length=500)))
op <- par(ann=FALSE, mai=c(0,0,0,0))
image (akima.smooth, main = "interp(<akima data>, *) on finer grid")
contour(akima.smooth, add = TRUE,drawlabels=F)
cheers
Patrizio
2009/2/19 James Nicolson <jlnicolson at gmail.com>:
good point! Provide your own set of x,y,z co-ords, mine are pretty big
but you can use any.
library(akima)
fr3d = data.frame(x,y,z)
xtrp <- interp(fr3d$x,fr3d$y,fr3d$z,linear=FALSE,extrap=TRUE,duplicate=
"strip")
op <- par(ann=FALSE, mai=c(0,0,0,0))
filled.contour(xtrp$x, xtrp$y, xtrp$z, asp = 0.88402366864, col =
rev(rainbow(28,start=0, end=8/12)), n = 40)
par(op)
I tried all these settings too (none of them made a difference)...
usr=c(0,845,0,747), mfcol=c(1,1), mfrow=c(1,1),
oma=c(0,0,0,0),omi=c(0,0,0,0), plt=c(1,1,1,1)
Regards
James
Peter Alspach wrote:
Kia ora James
I think it would be easier to provide you with help if you "provide
commented, minimal, self-contained, reproducible code" [see bottom of
this, or any, email to R-help].
Hei kona ra ...
Peter Alspach
-----Original Message-----
From: r-help-bounces at r-project.org
[mailto:r-help-bounces at r-project.org] On Behalf Of James Nicolson
Sent: Thursday, 19 February 2009 11:22 a.m.
To: r-help at r-project.org
Subject: Re: [R] Unadulterated plot
Hi,
Thanks for your help. I have looked at the beginners
documentation and while there are options to configure
various aspects of the plot none of them seem to have the
desired effect. I have managed to ensure that the plot fills
the space vertically with no margins, no axes etc (using
mai=c(0,0,0,0)). However, horizontally there remains a margin
to the right that pads the space between the filled.contour
and its legend.
I've tried options to par and filled.contour but I can't seem
to remove the legend.
Kind Regards,
James
Simon Pickett wrote:
Hi James,
What you really need to do is to check out the many freely
available
pdfs for R beginners. Here is a good place to start http://cran.r-project.org/other-docs.html If I am right interpreting what you want, I think you need
to create a
blank plot with no axes, axis labels etc. Try
plot(x,y,xlab="",ylab="",xaxt=NULL,yaxt=NULL,type="n")
#blank plot
points(x,y)
type "?par" into R and see how you can set parameters like
this up as
the default.
Hope this helps?
Simon.
----- Original Message ----- From: "James Nicolson"
<jlnicolson at gmail.com>
To: <r-help at r-project.org>
Sent: Sunday, February 15, 2009 10:29 PM
Subject: [R] Unadulterated plot
To all,
Apologies if this question has already been asked but I can't find
anything. I can't seem to think of more specific search
terms. I want
to display/create a file of a pure plot with a specific height and
width. I want to utilise every single pixel inside the
axes. I do not
want to display any margins, legends, axes, titles or
spaces around
the edges. Is this possible? Additionally, the plot I am
working with
is a filled.contour plot and I can not remove the legend?
How can I
do this? Kind Regards, James
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