Hi Folks,
Say I have 2 continuous variables X,Y.
I can of course plot (X,Y) with
plot(X,Y,pch="+",col="blue")
say, and add the regression line from lm(Y~X)
by extracting the coefficients 'a' of Intercept
and 'b' of X from Y.lm <- lm(Y~X).
Now, however, I want to have not only a general
explanatory title such as
main="Plot of Y against X"
but also (and ideally just under the main title
and above the figure region of the plot) the
result of
round(summary(Y.lm)[[4]],digits=3)
exactly as shown below:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 78.636 0.273 287.902 0.000
X -0.074 0.029 -2.527 0.012
It would also be OK to have it as a "subtitle"
below the xlabel (which by default is X" in this case).
I've been trying to work out how to so this simply,
but without much success. I can see a complicated
way, which involves binding the row and column names,
and the values, of the above output, using paste()
along with "\n" at suitable places, but I'd like to
have something much less intricate than that!
I'd also like to be able to integrate the solution
nicely with the main title (or the X label) so that
there's no overlap.
Any suggestions?
with thanks,
Ted.
--------------------------------------------------------------------
E-Mail: (Ted Harding) <Ted.Harding at manchester.ac.uk>
Fax-to-email: +44 (0)870 094 0861
Date: 09-Dec-07 Time: 19:15:08
------------------------------ XFMail ------------------------------
Adding info from summary(lm(...)) to plot
3 messages · (Ted Harding), Gabor Grothendieck, Marc Schwartz
If x <- round(...whatever...) try: title(capture.output(print(x)))
On Dec 9, 2007 2:15 PM, Ted Harding <Ted.Harding at manchester.ac.uk> wrote:
Hi Folks,
Say I have 2 continuous variables X,Y.
I can of course plot (X,Y) with
plot(X,Y,pch="+",col="blue")
say, and add the regression line from lm(Y~X)
by extracting the coefficients 'a' of Intercept
and 'b' of X from Y.lm <- lm(Y~X).
Now, however, I want to have not only a general
explanatory title such as
main="Plot of Y against X"
but also (and ideally just under the main title
and above the figure region of the plot) the
result of
round(summary(Y.lm)[[4]],digits=3)
exactly as shown below:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 78.636 0.273 287.902 0.000
X -0.074 0.029 -2.527 0.012
It would also be OK to have it as a "subtitle"
below the xlabel (which by default is X" in this case).
I've been trying to work out how to so this simply,
but without much success. I can see a complicated
way, which involves binding the row and column names,
and the values, of the above output, using paste()
along with "\n" at suitable places, but I'd like to
have something much less intricate than that!
I'd also like to be able to integrate the solution
nicely with the main title (or the X label) so that
there's no overlap.
Any suggestions?
with thanks,
Ted.
--------------------------------------------------------------------
E-Mail: (Ted Harding) <Ted.Harding at manchester.ac.uk>
Fax-to-email: +44 (0)870 094 0861
Date: 09-Dec-07 Time: 19:15:08
------------------------------ XFMail ------------------------------
______________________________________________ R-help at r-project.org mailing list 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.
On Sun, 2007-12-09 at 19:15 +0000, Ted.Harding at manchester.ac.uk wrote:
Hi Folks,
Say I have 2 continuous variables X,Y.
I can of course plot (X,Y) with
plot(X,Y,pch="+",col="blue")
say, and add the regression line from lm(Y~X)
by extracting the coefficients 'a' of Intercept
and 'b' of X from Y.lm <- lm(Y~X).
Now, however, I want to have not only a general
explanatory title such as
main="Plot of Y against X"
but also (and ideally just under the main title
and above the figure region of the plot) the
result of
round(summary(Y.lm)[[4]],digits=3)
exactly as shown below:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 78.636 0.273 287.902 0.000
X -0.074 0.029 -2.527 0.012
It would also be OK to have it as a "subtitle"
below the xlabel (which by default is X" in this case).
I've been trying to work out how to so this simply,
but without much success. I can see a complicated
way, which involves binding the row and column names,
and the values, of the above output, using paste()
along with "\n" at suitable places, but I'd like to
have something much less intricate than that!
I'd also like to be able to integrate the solution
nicely with the main title (or the X label) so that
there's no overlap.
Any suggestions?
with thanks,
Ted.
Ted, For plotting the fitted regression line, you can use: abline(ModelObject) rather than extracting the coefs, etc. See ?abline for more information. There are also examples in ?predict.lm using matplot()/matlines() for adding the confidence/prediction intervals. In terms of adding the model summary table, you might want to consider doing this within a legend box using a monospace font. There was a thread on this a couple of years back on r-help: http://finzi.psych.upenn.edu/R/Rhelp02a/archive/58410.html You may wish to review the full thread to get a sense for the evolution of the solutions posed. HTH, Marc Schwartz