Displaying 20 results from an estimated 7000 matches similar to: "How to add error bars to plot(x,y)in R?"
2001 Apr 16
1
Help with plotting error bars in R
Hi,
I'm sorry to send email to everyone on this list, but I have a simple question
which is bothering me and I can't seem to figure out the correct answer. I
just downloaded R and I'm trying to reproduce some simple analysis I've done
on other packages. In particular, if I have a vector of experimental values
and a vector of their uncertainties, is there a way to plot the
2000 Nov 08
4
How to plot error bars
I'm a newcomer to R. I can't seem to find any documentation how to add
error bars to points in scatter plots. I guess I could plot the points,
then compute and plot line segments in the X and/or Y directions to
represent the errors?
- Mike
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r-help mailing list -- Read
2001 May 24
2
New Package: gregmisc
I've thrown a couple of useful functions into a new package "gregmisc" and
uploaded them to ftp://ftp.ci.tuwien.ac.at/incoming/gregmisc_0.1.1.tgz
Here's DESCRIPTION:
Package: gregmisc
Description: Misc Functions written/maintained by Gregory R. Warnes
Title: Greg's Miscellaneous Functions
Version: 0.1
Date: 2001/05/24
Depends: R
Maintainer: Gregory R. Warnes
2000 Aug 29
1
Newbie question: Linear regression with error bars.
Hello guys,
I am a total newbie on R, having downloaded it, read the documentation and
started playing with it right now.
My general question is what 'lr' model can be used for doing a linear
regression on points that have a variance associated with them (ie. Monte
Carlo simulation results).
Actually my Data sets look like:
Timestep Energy Variance_of_the_Energy
0.0005 -14.876840
2010 Jun 13
1
Break in the y-axis
Hello all,
I have been having trouble getting a break in my y-axis. All of my data
points are up around 100-200, but the graph has to start at zero, so i would
like to remove all the white space using a break symbol. I have been able
to get the break and labels to be correct, however, I can't seem to get the
data to match the axis anymore. I must be using the axis.break() in plotrix
2011 Nov 16
3
plotting a double y axis when x and y lengths differ
Hello All,
Many thanks to the help I have received so far.
Here is an example data set I hope to plot
Data1
Year Data SE
1 2005 2 0.01
2 2006 4 0.01
3 2007 5 0.01
4 2008 2 0.01
5 2009 3 0.01
6 2010 6 0.01
Data2
Year Data SE
1 2006 32 1
2 2007 100 2
3 2008 60 4
4 2009 67 3
5 2010 8 1
Notice Data2 has one less years worth of data than Data1 (which is my
2010 Jun 05
1
Error Bar Issues
Hello all,
I am an undergraduate student who is having syntax issues trying to get
error bars on my graph.
This is the data, which I assigned the name "Saline" to.
Time Average SEM
1 -20 0.000000 0.0000000
2
3 30 0.000000 0.0000000
4 45 3.227902 0.7462524
5 60 5.066664 1.1623944
6 80 6.107491 1.5027762
7 110
2013 Feb 11
2
How to plot doubles series with different location using plotCI
Dear list
members,
I would
like to create two series of plotted mean values and error bars, yet with
different locations along the x-axis.
Plotting of
first series using plotCI with the standard arguments goes without any problem.
However I do not succeed to add the second series in the same plot, which
should be horizontally shifted from the first series along the x-axis. The “add=TRUE”
2012 Jan 13
1
Problems with plotCI
Got problems with plotCI (plotrix)
I only want to plot the upper part of the error bar in my barplot
I had the exact same commands working two months ago
Now I wanted to change the legend and when I ran it again plotCI stopped
working.
To me it seems like there must some bug in R
library(plotrix)
library (graphics)
x = matrix(c( 13.75516276, 3.944604404,
2010 Apr 21
1
Adding error bars to xyplot()
Hi,
I want to add error bars to a plot generated with xyplot. I've tried
both errbar() and plotCI(), but in both cases the points are not in the
same place. It's as if the two functions are using a different frame of
reference for the plotting area.
for example:
means <- c(92.5, 92.25, 90.9, 91.0, 94.15, 90.05) #means
time <- c(1,1,2,2,3,3) #occasion variable
group <-
2009 Apr 16
2
error bars in matplot
Hi,
I was trying to get error bars in my matplot. I looked at an earlier thread, and the sample code that I made is:
#------------------
library(plotrix)
mat1 <- matrix(sample(1:30,10),nrow=5,ncol=2)
ses <- matrix(sample(1:3,10,replace=T),nrow=5,ncol=2)
vect <- seq(20,100,20)
rownames(mat1) <- rownames(ses) <- vect
colnames(mat1) <- colnames(ses) <- letters[1:2]
2005 Apr 01
1
plotCI error when trying to omit upper or lower bars (PR#7764)
Full_Name: Volker Franz
Version: 2.0.1 (2004-11-15)
OS: Mac OSX / Debian
Submission from: (NULL) (84.58.8.232)
Hi there,
the new version of plotCI (Version: 2.0.3 of gplots) produces errors
if the upper or lower error bars should be omitted by passing NULL as
an argument. Older versions of plotCI had no problem with this. Here
is an example:
library(gplots)
means <- c(1,2,3,4,5)
upperw
2010 Apr 30
4
plotting multiple CIs
Hello,
I need to plot multiple confidence intervals for the same model parameter e.g. so for the same value of the parameter in point x_1 I would like to see four different confidence intervals so that I can compare the accuracy e.g. boot basic vs normal vs my own vs classic lm CI etc.
I like very very much the plotCI implemented here:
http://cran.r-project.org/web/packages/plotrix/index.html
2000 Feb 24
2
(-1 as index) OR (envelope for QQ)
I'm new to R (and to S) and am wondering about code from pages 72 and
83 of MASS (Venables+Ripley, 3rd edition), to draw an envelope on a QQ
plot. Copying from the book, I've got:
#... code whose gist is "a.fit <- nls(..."
num.points <- length(resid(a.fit))
qqnorm(residuals(a.fit)) # illustrate data-model residuals
qqline(residuals(a.fit))
samp <-
2004 Jun 18
2
Barplots and error indicators: Some R-Code
I' ve seen that several people are looking for a function that creates a
barplot with an error indicators (I was one of them myself). Maybe you will
find the following code helpful (There are some examples how to use it at
the end):
# Creates a barplot.
#bar.plot() needs a datavector for the height of bars and a error
#indicator for the interval
#many of the usual R parameters can be set:
2008 Jan 08
28
1.9.3 release, rakefile
Hi
I''d like to put out a 1.9.3 release perhaps later this week/weekend. If
you have a chance to test the build and samples esp with latest
rubygems, please do.
There are still some bugs on the list, and samples to do, but this
should address all the build/install probs that have come up. And it
would be good to get some testing and feedback on some of the new classes.
A note on the
2014 Jun 16
3
R128gain & metaflac
I mention metaflac because there are a few shell scripts that use it to write RG tags in a flac music library on Linux. With support for Ebu R128 gain in metaflac (the calculation according to specification, not an external program) it would be easy to use, just change the cmd line for metaflac in the script. Now that metaflac supports sample rates higher than 48kHz this would be a good thing in
2006 Feb 01
1
several plots in one
Can anyone tell me how I can supply more than one graph to plotCI
(gplots) at once?
Below is what I tried, also with rbind instead of cbind.
What is the way to do this (in general, I think)?
Problem is that lines of 1-st and 2-nd series are mixed, while they have
nothing to do with each other.
I also tried calling plotCI with argument add=TRUE, which didn't seem to
work (that is actually
1999 Feb 09
2
PB upgrade to samba 2.0
After I have upgraded from previous version to 2.0, I don't manage to
authenticate from clients (winnt4) to DigitalUnix3.2c with Samba
anymore. Before the upgrade it worked fine. After the upgrade, my
password is rejected.
It's really a authentication problem because it works fine if I add
"guest ok = yes".
On the server I have: security = share
On the client:
2006 Oct 16
2
set linetype with plotCI
Dear R-list,
I'm iterating several calls to plotCI [gplots], like so:
plotCI(
x = xvals.f[sorted],
y = yvals.f[sorted],
xlim = c(xmin, xmax), ylim = c(ymin, ymax),
pch = plot_symbols[graph_idx], type = "b",
lty = plot_linetypes[1],
col = plot_colors[graph_idx],
barcol = plot_colors[graph_idx], uiw = NA,
xlab = "", ylab = "",
add =