Displaying 20 results from an estimated 8000 matches similar to: "How can I put error bars on a barplot() ?"
2007 Mar 01
2
barplot2, gap.barplot
Hello,
I try to handle a simple bar-plot, but it turns out to be not as simple
as I thought.
1) I have created a .dat-File, e.g. test.dat:
DATA DATA-SEM
2.2 0.32
6.2 1.30
12.7 1.61
48.6 3.08
4.1 0.86
4.5 0.32
1.5 1.13
1.2 1.08
The first row is the data represented by bars. The second row deals with
the Standard Error of Mean. The lines correspond to time-intervals of
experiments.
2) I now
2003 Jan 17
2
barplot plotting problem
Hi,
Is there any equivalent of type="n" when constructing barplots which will
still construct the axes (plot=F, as it says doesn' plot anything at all).
Alternatively I tried setting col="white" and border="white" but the border
command does not seem to be operational. True??
Any other ideas? What I'm actually trying to do is construct vertical
abline()'s
2005 Jun 30
1
Graphically centering confidence interval in barplot
Hello,
I have got a simple "cosmetic" question.
I have created a bar plot with confidence intervals using:
barplot(mean, ylim = c(0,0.2), las = 3, space = 0)
arrows(1:17 ,X95p_low, 1:17, X95p_high, length = 0.07, angle = 90, code
= 3, lty = 1)
Unfortunately, the confidence bars align with the right side of the bars
and I would like to shift these to the middle of the bars.
Is
1999 Aug 26
1
error bars on barplots
Hello again
I'm trying to put error bars onto a barplot. I've tried something that
Bill Simpson suggested a while ago, ie:
x<-c(1,2,3,4,5)
y<-c(1.1, 2.3, 3.0, 3.9, 5.1)
ucl<-c(1.3, 2.4, 3.5, 4.1, 5.3)
lcl<-c(.9, 1.8, 2.7, 3.8, 5.0)
plot(x,y, ylim=range(c(lcl,ucl)))
arrows(x,ucl,x,lcl,length=.05,angle=90,code=3)
#or
segments(x,ucl,x,lcl)
but I can't get it to work on a
2017 Jan 27
4
Suggestion: barplot function
Hello developers folks!
First, congratulations for the wonderful work with R.
For science, barplots with error bars are very important. We were
wondering that is so easy to use the boxplot function:
boxplot(Spores~treatment, col=treatment_colors)
But there is no such function for barplots with standard deviation or
standard error. It becomes a "journey" to plot a simple graph (e.g.
2005 Jun 30
2
How to rotate the axisnames in a BARPLOT
Hi all,
- how can I do a barplot with rotated axis labels? I've seen the example for
just a plot in the FAQ, but I'll missing the coordinates to plot my text at
the right position beneath the bars.
Is there any (easy?) solution?
- how can I set the y-axis in a barplot to logarithmic scale?
Many thanks in advance!
Best Regards
Tom
--
2012 Nov 08
2
How to include CI in a grouped barplot?
Hello everyone!
I need to include the confidence interval bar in a grouped barplot. I've
found some options on the web, but none of them solved my problem.
The question is: my barplot was created using vectors for each pair of bar
and them combining them using cbind.
I mean:
a=c(10,15)
b=c(20,24)
c=c(21,23) ...
hei=cbind(a,b,c)
graph1=barplot(hei, beside=T,...)
I've tried to include
2012 Mar 02
2
Spacing of text does not match spacing of bars in barplot
I have a very standard barplot. My labels are too long to be printed
horizontally under each bar, so I am using text to put the labels on a 45
degree slant.
However, the labels are spaced more narrowly than the bars, so on an 8
vertical bar plot, the end of the eighth label is lined up with the seventh
bar.
Preferably I don't want to do every text label separately (I'm having this
2005 May 30
3
values of bars in barplot
Hi,
I couldn't find how to have the values written on the
top of each bar in a barplot. When using hist(), it is
possible to use labels=T, but this option does not
seem to exist for barplot().
Is there a trick I could use to do that ?
Thanks to all
Luc
2005 Jan 13
1
Space between bars in barplot
Hi
I am trying to understand the "space" argument to barplot() and I think
it is not working as stated. The docs say:
space: the amount of space (as a fraction of the average bar width)
left before each bar.
Which means that I can pass a vector, the same length as the no. of
bars, and the nth element of that vector will be the space left before
the nth bar. This is
2004 Nov 24
1
reshaping of data for barplot2
Dear All,
I have the following data coming out from
s <- with(final,
summarize(norm, llist(gtt,fdiab),
function(norm) {
n <- sum(!is.na(norm))
s <- sum(norm, na.rm=T)
binconf(s, n)
}, type='matrix')
)
ie
gtt fdiab norm.norm norm.norm2 norm.norm3
18
2005 Apr 14
3
Wrapping long labels in barplot(2)
I am using barplot, and barplot2 in the gregmisc bundle, in the
following way:
barplot2(sort(xtabs(expend / 1000 ~ theme)),
col = c(mdg7, mdg8, mdg3, mdg1), horiz = T, las = 1,
xlab = "$ '000", plot.grid = T)
The problem is that the values of 'theme', which is a factor, are in
some cases rather long, so that I would like to wrap/split them at a
space once they
2006 Mar 01
1
Width of bars in barplot2
I'm using barplot2 to plot some data. Is there any way to determine
the width of the bars in the generated plot? I know that barplot2
returns a list of the coordinates of the center of each bar, but since
there is some white space between each bar, I don't know how to get
the width of each bar.
Jamie
2009 Dec 15
2
Diagonal Labels on "Beside" Bars in Barplot
My question is based on an example provided in the following:
Referencing:
Statistics with R
Vincent Zoonekynd
<zoonek at math.jussieu.fr>
6th January 2007
URL:
http://zoonek2.free.fr/UNIX/48_R/all.html
data(HairEyeColor)
a <- as.table( apply(HairEyeColor, c(1,2), sum) )
# Provided Example
barplot(a, beside = TRUE,
legend.text = attr(a, "dimnames")$Hair)
# I
2007 Jul 25
3
Constructing bar charts with standard error bars
I am new to R.
I want to graph group data using a "Traditional Bar Chart with Standard
Error Bar", like the kind shown here:
http://samiam.colorado.edu/~mcclella/ftep/twoGroups/twoGroupGraphs.html
Is there a simple way to do this?
So far, I have only figured out how to plot the bars using barplot.
testdata <- scan(, list(group=0,xbar=0,se=0))
400 0.36038 0.02154
200 0.35927
2005 Jun 04
1
barplot and missing values?
I want to include missing values in my barplot to get the correct x-axis,
for example,
x <- c(1,2,3,4, 9)
y <- c(2,4,6,8,18)
barplot(y)
The above looks wrong because the last height in y should be a long way
over.
So I want to do something like...
x <- c(1,2,3,4,5,6,7,8, 9)
y <- c(2,4,6,8,0,0,0,0,18)
barplot(y)
However...
I am actually using barplot2 to use the
2007 Mar 13
3
Adding bars to the right of existing ones using barplot
I'm trying to create a barplot that has two sets of data next to each
other. I'm using barplot with the add=TRUE option, but this simply
adds the second dataset on top of the first, obscuring it. How do I
add the new data to the right on the existing barplot so that both
sets are visible? I've been playing with all sorts of option and
reading the list archives with no
2004 Nov 26
2
barplot(2?) with CI from a zero reference line
Dear R Users, (and dear Marc)
First of all many thanks for the answers to my previous questions.
I would like to barplot the mean percent change of a variate with it's
CI. Bars should start from the zero reference line to height (in
barplot2).
Is there a way to tweak barplot2, for example, to do that ?
I have tried to see what the function was but unlike other functions was
not able to
2009 Feb 27
2
add absolute value to bars in barplot
Hello,
r-help at r-project.orgbarplot(twcons.area,
beside=T, col=c("green4", "blue", "red3", "gray"),
xlab="estate",
ylab="number of persons", ylim=c(0, 110),
legend.text=c("treated", "mix", "untreated", "NA"))
produces a barplot very fine. In addition, I'd like to get the
2007 Aug 04
2
bars' values on barplot
Hi,
I need bars' values on barplot, and I don't know how I can put it. I do my
barplot as:
data<-read.table("/my_path/file.dat",header=T, sep="\t")
barplot(as.matrix(data),log="y",beside=TRUE,main="my_title", xlab="x name",
ylab="y name").
How can I add the values on each bar?
Thanks..
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