Re: [R] Numbers as Points in Graphs

From: <markleeds_at_verizon.net>
Date: Sun, 06 Jul 2008 18:40:54 -0500 (CDT)

  milton: that was totally your solution. i just changed it for what hippie dream wanted. hippie dream: you can do ?text to get a better explanation but
the basic idea is that the first two parameters in text specify the coordinates at which you put the text and the third param is the text. so, y
is there twice because in the first case, y acts as a coordinate and in the second case, y acts as a label.

On Sun, Jul 6, 2008 at 7:12 PM, milton ruser wrote:

Thanks Mark Leeds!

Just putting something more on the code:

x<-runif(20)
y<-rnorm(20)
code.level<-sample(1:15,20, replace=T)
df<-data.frame(cbind(x,y, code.level))

plot(y~x, data=df, type="n")
text(df$x, df$y, df$code.level)

Peace,

Miltinho Astronauta
Brazil

On 7/6/08, markleeds_at_verizon.net <mailto:markleeds_at_verizon.net> < markleeds_at_verizon.net <mailto:markleeds_at_verizon.net> > wrote: below is milton's example with the text command changed to be the values of y itself ? is that what you wanted ?

x<-runif(20)
y<-rnorm(20)
df<-data.frame(cbind(x,y))

plot(y~x, data=df, type="n")
text(df$x, df$y, df$y)

On Sun, Jul 6, 2008 at 6:59 PM, hippie dream wrote:

Thanks Milton,

I am finding this a little hard to explain. The code you gave me produced
all 0.0 points whereas what I am looking for are the points to correspond to
a specific column. I'll be explicit. I am graphing the location of 15 objects numbered 1 to 15.

plot(Length ~ Width, data=infiltration1, col="blue", xlab = "Width (cm)",
ylab = "Length (m)", xlim=c(0,200), ylim=c(0,30))

Now I would like the points on this graph, rather than dots to be numbers
corresponding to the object it represents. Is there any way to "access" the
object number from my data to use as in lieu of points?

Thanks again.

milton ruser wrote:

Hi Hippien Dream

If I understood, the code below may help you.

Cheers,

Miltinho Astronauta
Brazil
===

x<-runif(20)
y<-rnorm(20)

df<-data.frame(cbind(x,y))

par(mfrow=c(1,2))
plot(y~x, data=df)

plot(y~x, data=df, type="n")
text(df$x, df$y, "o.o")

On 7/6/08, hippie dream < tonightsthenight_at_gmail.com
<mailto:tonightsthenight_at_gmail.com> > wrote:

I am trying to produce a simple plot where the points in the plot are actually integers from my data. That is, I am making a length/width plot and
I would like the points, rather dots or triangles, appear as different numbers corresponding to a column in my data. I have tried using this:

...,pch="column title"

but this merely returns the first letter of the column title, B. Is there
any way to do this?

I am using R 2.7.1 and Ubuntu 8.04. Thanks.

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