Displaying 20 results from an estimated 200 matches similar to: "Error Bar Issues"
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
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 Jun 11
2
Misplacement of Greek letter
Hello.
I am trying to get my axis label to read as follows
(The symbol) Delta AUC blah blah...
then below it...(some other text)
The problem is the Delta symbol shows up beside the "(some other text)"
rather than the "AUC". Does any one know how I can get the Delta to remain
beside AUC?
Here is the actual command should you care to look at it.
par(mar=c(8,8,4,4))
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 =
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
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,
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”
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
2006 Sep 24
2
plotCI
Hi R masters!
I need a Help with plot confidence intervals for one equation. I use
library gplots and plotCI command in this script:
require(gplots)
ano <-1980:2002
rf<-exp(91.37162-0.04720281*ano)
ciw.f<-sqrt(1.766073e-08)
plotCI(ano,rf,uiw=ciw.f)
But in the graph not shown the errors bar and I have this error msg
zero-length arrow is of indeterminate angle and so skipped
2011 Feb 01
1
Setting maximum value of the legend on an image.plot and animation
Hello,
I'm doing the following:
library(ncdf)
library(fields)
library(animation)
saline <- open.ncdf("salinity_1990.nc")
salt = get.var.ncdf(nc=saline, varid="Salinity")
# create an animation of the complete temporal domain in the ncdf file.
saveHTML({
for (i in 1:364) {
image.plot(salt[, , i])
}
}, img.name = "salinity.img",
2009 Nov 27
2
using reshape to do ANOVA mixed models
Hi,
I just started with R and I found that there are many options to rearrange
the data to do mixed models.
I want to use the reshape function. I have 2 between subject variables and
one within.
I was able to change the data structure but still - the result of the aov
functions are calculating everything as a within subject.
the table looks like this:
SerialNo breed treatment distance_1
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 <-
2008 Jun 09
1
Student Distribution and Funtion qt
Hello,
I am trying to calculate and plot mean and confidence intervall for a set of data. This is the code that I am currently using:
means <- sapply(data, mean, na.rm=TRUE)
n <- sapply(data,length)
stdev <- sqrt(sapply(data, var, na.rm=TRUE))
ciw <- qt(0.98, n) * stdev / sqrt(n)
par(mgp=c(2,0.6,0), las=2, fin=c(7,3), mai=c(1,0.5,0.2,0.2), cex=0.8)
plotCI(x=means, uiw=ciw,
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 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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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
2004 Aug 13
5
simtest for Dunnett's test
Hi!
I use simtest fonction of multcomp package to compile a Dunnett's test.
I have 10 treatments and one control group, so i create a matrix with:
m<-matrix(0,10,11)
m[1,1]<--1
m[1,2]<-1
m[2,1]<--1
m[2,3]<-1
m[3,1]<--1
m[3,4]<-1
m[4,1]<--1
m[4,5]<-1
m[5,1]<--1
m[5,6]<-1
m[6,1]<--1
m[6,7]<-1
m[7,1]<--1
m[7,8]<-1
m[8,1]<--1
m[8,9]<-1
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
2010 Jun 10
1
Issues with Bar Graph
Hello all!
I am relatively new at R and was having a few issues with the following
graph:
barplot(c(5724.688,7290.7875), ylab=expression(paste(Delta, "AUC 45-200 min
(?g/ml * 155 min)")), xlim=c(0,2), width=0.5,
border="black",font.lab=2,cex.lab=1.7, names.arg=c("Saline (n=8)", "Exendin
(9-39) (n=8)"), axisnames=TRUE, cex.names=1.7, ylim=c(0,9000),
2002 Jan 25
4
How to add error bars to plot(x,y)in R?
Dear R Experts,
Is there a way in R to add an error bar (say in the y direction) for each data point?
Thanks
Ming Chow
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