On Wed, 16 Feb 2011 05:16:07 pm Dieter Menne wrote:
> Steven Cordwell wrote:
> > However, transforming z into a matrix with two rows, where both rows are
> > the same as z above does seem to be a workaround.
> >
> > z <- matrix(c(z,z),2,length(z),byrow=TRUE)
> > y <- c(0.25,0.75)
> > image(x,y,t(z
Hi,
rasterImage may alleviate the pdf artefacts in the viewer. This seems
to produce a similar output,
plot(range(x),range(y), t="n")
rasterImage(t(rgb(colorRamp(heat.colors(7))(z/max(z))/255)),
min(x),min(y),max(x),max(y), interpolate=FALSE)
HTH,
baptiste
On 16 February 2011 05:43, Steven Cor
Steven Cordwell wrote:
>
> However, transforming z into a matrix with two rows, where both rows are
> the same as z above does seem to be a workaround.
>
> z <- matrix(c(z,z),2,length(z),byrow=TRUE)
> y <- c(0.25,0.75)
> image(x,y,t(z),zlim=c(1,7),col=heat.colors(7),xlab="Year",ylab="Action",ya
On Tue, Feb 15, 2011 at 8:43 PM, Steven Cordwell wrote:
> Hi,
>
> I have a vectors x and z, for example,
>
> x <- 0:20
> z <- round(runif(20,1,7))
> y <- 0.5
>
> and I want to display z as an image. However if I then call image() with a
> vector
>
> image(x,y,t(z),zlim=c(1,7),col=heat.colors(7),x
Hi,
I have a vectors x and z, for example,
x <- 0:20
z <- round(runif(20,1,7))
y <- 0.5
and I want to display z as an image. However if I then call image() with a
vector
image(x,y,t(z),zlim=c(1,7),col=heat.colors(7),xlab="Year",ylab="Action",yaxt="n",xaxs="r",yaxs="r")
then I get the error
E
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