Displaying 20 results from an estimated 8000 matches similar to: "axTicks.Rd documentation bug"
2004 Mar 25
1
How to add a top X-axis with a different logarithmic scale?
Hi,
I am trying to put on one plot two different logarithmic
scales, using the bottom and top X-axes.
Below there is an example of what I am trying to achieve,
using axTicks() -- and fails.
I already spent few hours on that, and cannot figure out from
?par and ?axTicks what I am doing wrong.
Example follows:
############################################################
#### Data
x <-
2005 Aug 14
1
Labels on axes with log scales with lattice
I using lattice to make some plots and I want to make the y-axis on
some of these plots use a log scale. In the following plot:
x <- 1:10
y <- 2^x
xyplot(log10(y) ~ x)
I get tick marks on the y-axis at 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0. I
would rather have just 3 tick marks at 1.0, 2.0, and 3.0 but labeled
10, 100, and 1000.
I know this can be done using the "at" and
2008 Jun 18
1
Help with axis labels
Hi
I have patched together (from various sources) the following code to get
semi-logarithmic plot. Unfortunately, my labels come out also at
intermediate places between 10^2, 10^3, 10^4 etc. Since I put the code
together from various sources and do not understand fully how the code is
working, I have not been able to get rid of the labels like 10^1.69897,
10^2.69897 etc. I would appreciate if
2004 Feb 19
1
Possible error in ?axTicks
Hi all,
Before posting to r-bugs, I thought that I would just verify this one
first.
It looks like the help for axTicks() needs to be corrected.
It presently says:
'axTicks()' can be regarded as an R implementation of the C function
'CreateAtVector()' in '..../src/main/graphics.c' which is called by
'axis(side,*)' when no argument 'at' is specified.
2005 Aug 18
2
axTicks and window resizing
Dear listers,
I have written a function to facilitate the drawing of altitude profiles
with x (distance), y (altitude) and a z parameter (altitude magnification).
profplot<-function(x,y,z=10,...){
op <- par()$mai
par(mai=c(0.95625,0.76875,0.76875,0.95625))
plot(x,y*z, type="l",asp=1,las=1,xlab="",ylab="",yaxt="n",...)
2005 Jun 28
2
axTicks on a reverse ylog plot (PR#7973)
There is still issues with the reversed y-log scale plot:
# Test case A: works as expected
plot(10:100,log="y",ylim=c(100,11))
grid()
par("yaxp")
# Test case B: grid does not have horizontal lines; par("yaxp") is
different
plot(1:100,log="y",ylim=c(100,10))
grid()
par("yaxp")
In the second test case, axTicks for the horizontal lines (in
2012 Aug 22
1
Plot label axis with expression
Hi all,
I need help with axis in plot.
I want to edit y axis label of my plot. My data is like:
x <- c(100,50,10,1,0.1,0.05,0.001)
plot(log(x))
axTicks(2) # Label of y axis
[1] -6 -4 -2 0 2 4
I'd like that y axis label was like: e^-6, e^-4, etc. (with text "e"
superscript -6, -4, etc.) I try to use expression(), but don't work.
plot(log(x), yaxt="n")
2010 Nov 20
2
plotting a timeline
I was trying to recreate this kind of timeline plot:
http://www.vertex42.com/ExcelArticles/create-a-timeline.html
As you can see in their excel example, the events are nicely placed out on
both sides of the timeline axis.
AFAIK there is no function to do this nicely in R-project. Furthermore,
graphics and lattice packages are unable to draw the x-axis in the middle of
the plot. (datapoints
2009 Dec 03
2
Formatting of numbers on y axis
Hello all. I have the following:
plot(salaries$yearID, salaries$salary, type='n', xaxt='n', xlab='',
yaxt='n', ylab='')
axis(1, at=unique(salaries$yearID), labels=unique(salaries$yearID), lwd=.25,
tck=-0.05)
axis(2, axTicks(2), format(axTicks(2), scientific = F))
Which nicely creates the Y axis with the raw numbers, which are in the range
of .5 - 7
2012 Nov 14
2
vectorized plotmath expressions via substitute()
hi all - i've seen versions of this question before, but none seem to get
directly at my solving my (probably very simple) issue:
i simply want to annotate the tick marks on an axis with (superscripted)
10^x notation, and tried this:
axis(1, at = axTicks(1), as.expression(substitute(10^foo, list(foo =
axTicks(1))))
thinking the as.expression/substitute would create the appropriate
2013 Jan 15
2
Month name in English, not R running language
When ploting a timeseries, the months are shown with abbreviation in the
current language of the system.
For example,
x <- seq(from=as.Date("2000-04-01"), length.out=100, by=1)
y <- rnorm(length(x), 5,2)
plot(x, y)
Show for me "avi mai jui jul" as I use R with French language localization.
I see in the Windows FAQ how to completely change the language of R, but
I
2008 Jun 13
1
adding custom axis to image.plot() and strange clipping behavior
Hi list,
I wanted to plot an image with a colorbar to the right of the plot, but set my own axis labels (text rather than numbers) to the image. I have previously accomplished this with two calls to image(), but the package 'fields' has a wrapper function, image.plot(), which does this task conveniently.
However, I could not add axes to the original image after a call to image.plot(); I
2012 Aug 01
1
add text to a plot, create character labels
Hi,
I was trying to run the following, where the labels on the x axis are dates
and need to be converted to characters. It did not work. Any help would be
appreciated. Thanks.
>
text(axTicks(1),par("usr)[3]-2,srt=45,adj=1,labels=as.character(c("2008-01-08","2008-08-10","2008-08-22","2008-09-03",
"2008-09-15")), xpd=T, cex=0.8)
Error:
2009 Sep 21
2
logarithmic seq() ?
Hello,
in scilab /Matlab there are functions that can create linear sequences (like R's
seq()) as well as logarithmic sequences.
Is there a logarithmic aequivalent of seq()?
Or maybe this would be an idea for newer R-releases,
maybe a type-option with "linear" and "logarithmic" as
parameters....?!
Ciao,
Oliver
2008 Aug 29
1
nls() fails on a simple exponential fit, when lm() gets it right?
Dear R-help,
Here's a simple example of nonlinear curve fitting where nls seems to get
the answer wrong on a very simple exponential fit (my R version 2.7.2).
Look at this code below for a very basic curve fit using nls to fit to (a)
a logarithmic and (b) an exponential curve. I did the fits using
self-start functions and I compared the results with a more simple fit
using a straight lm()
2005 Mar 30
1
Finding the "height of a line of text" for axis
I would like to draw only the ticks of an axis, but not the axis
itself. I don't think this can be done using axis(), so I am trying to
write a cut-down version in R, which only draws ticks.
The point at which I am stuck is that the length of a tick is set by
par("tcl") as a fraction of the "height of a line of text". So I would
like to draw a line whose length is also
2009 Jan 27
3
plot Ticks
Is there a way to force the number of ticks along an axis ?
I read the on-line documentation and tried many combinations of all available parameters from functions
par(), axTicks(), axis(), plot() ... but no luck !
Thank you very much,
Maura
tutti i telefonini TIM!
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2011 Dec 05
1
explanation why RandomForest don't require a transformations (e.g. logarithmic) of variables
Dear Researches,
sorry for the easy and common question. I am trying to justify the idea of
RandomForest don't require a transformations (e.g. logarithmic) of
variables, comparing this non parametrics method with e.g. the linear
regressions. In leteruature to study my phenomena i need to apply a
logarithmic trasformation to describe my model, but i found RF don't
required this approach.
2008 Jun 18
1
Maximum Likelihood Estimation
Using R, I would like to calculate algorithms to estimate coefficients á and â within the gamma function: f(costij)=((costij)^á)*exp(â*costij). I have its logarithmic diminishing line data (Logarithmic Diminishing Line Data Table) and have installed R¢s Maximum Likelihood Estimation package; however, I am unsure which method to apply in order to calculate the algorisms (i.e., Newton-Raphson
2011 Jul 12
1
High density scatter plot with logarithmic binning
How can perform logarithmic binning in the scatterplot? I could only take the
log of the variables and plot them, but I am sure that is not the way. I
have a very huge data, and would want to plot those high density
scatterplots and code then with different colors for the bins/density.
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