Displaying 20 results from an estimated 2000 matches similar to: "Help with customizing a histogram figure"
2011 Feb 17
4
Find and replace all the elements in a data frame
Hi all,
I'm having a problem once again, trying to do something very simple. Consider
the following data frame:
x <- read.table(textConnection("locus1 locus2 locus3
A T C
A T NA
T C C
A T G"), header = TRUE)
closeAllConnections()
I am trying to make a new data frame, replacing "A" with "A/A", "T" with "T/T",
"G" with
2011 Feb 20
3
Partial italic in graph titles when looping
Dear all,
I have a rather complicated problem. I am trying to loop through making graphs,
so that the graph-making process is fully automated. For each graph, I'd like to
make sure the corresponding title is formatted properly. The titles will be a
combination of a gene name and numerical position within the gene. The gene name
should be italic-bold, whereas the gene position should be
2010 Feb 19
3
plot circular histogram
In conducting studies of animal orientation and displacement, I need to
produce circular histograms of angles (bearings in radians 0-2pi) where the
centre of the circle indicates very few observations for a given bin of
angles and outwardly concentric circles indicate greater frequencies of
observations for a given bin of angles. I'd like not to have to write the
function myself but I
2010 Jun 18
1
Fitting a polynomial using lrm from the Design library
Hi all,
I am looking to fit a logistic regression using the lrm function from the Design library. I am interested in this function because I would like to obtain "pseudo-R2" values (see http://tolstoy.newcastle.edu.au/R/help/02b/1011.html).
Can anyone help me with the syntax?
If I fit the model using the stats library, the code looks like this:
model <- glm(x$trait ~ x$PC1 +
2010 Jun 16
2
Accessing the elements of summary(prcomp(USArrests))
Hello again,
I was hoping one of you could help me with this problem. Consider the sample data from R:
> summary(prcomp(USArrests))
Importance of components:
PC1 PC2 PC3 PC4
Standard deviation 83.732 14.2124 6.4894 2.48279
Proportion of Variance 0.966 0.0278 0.0058 0.00085
Cumulative Proportion 0.966 0.9933 0.9991 1.00000
How do I access the
2010 Oct 06
2
Pointing to a specific place on the x-axis with an arrow
Hi all,
I am trying to do something simple, but which is deviling me. I want to add an
up-arrow to the x-axis, pointing to a specific location on the axis. I want the
arrow to be as large as possible.
Here is where I'm at with my code:
#this part if from the ?plot example:
require(stats)
plot(cars)
lines(lowess(cars))
#I am trying to use mtext to add the arrow... but I don't know how
2007 Nov 02
2
add histograms or distributions on regression line
hello, does anyone know how to add histograms or distributions
on regression like just like quantiles regression in RGraphGallery
below, a very
delicate codes. Thanks alot.
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=109
2006 Sep 06
4
histogram in the background?
I intend to draw a plot of y against x. In the background of this graph I
wish to creat a histogram of the horizontal variable x. Does any expert know
how to produce such a plot?
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2011 Apr 11
2
Plotting a quadratic line on top of an xy scatterplot
Dear Listserv,
Here is my latest in a series of simple-seeming questions that dog me.
Consider the following data:
x <- read.table(textConnection("temperature probability
0.11 9.4
0 2.3
0.38 8.7
0.43 9.2
0.6 15.6
0.47 8.7
0.09 12.8
0.11 9.4
0.01 7.7
0.83 8
0.65 9.3
0.05 7.4
0.34 10.1
0.02 4.8
0.07 9.1
0.6 15.6
0.01 8.4
0.9 9.6
0.83 8
0.12 8.4
0.01 8
0 5
0.11 9.7
0.41 7.4
0.05 9.4
0.09
2010 Sep 26
2
Splitting a data frame into several completely separate data frames
Hello again,
How do I split a data frame into smaller, completely separate data frames
(rather than separate data frames comprising a single "list")? Consider the
following data, and my coding attempt:
x <- read.table(textConnection("id type number
indv.1 bagel 6
indv.2 bagel 1
indv.3 donuts 10
indv.4 donuts 9"), header = TRUE)
closeAllConnections()
x.split <-
2011 Mar 03
2
Ordering several histograms
Hallo everyone,
I want to evaluate the change of the distribution for several size classes.
How can i order these separate histograms with the same y-axis along a
common x-axis according to their size classes. It would like it to look a
bit like this
(http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=109) without
the quantile regression. I can produce the separate histograms, but have
2010 Sep 21
5
Combined plot: Scatter + density plot
Hi,
in order to save space for a publication, it would be nice to have a
combined scatter and density plot similar to what is shows on
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=78
I wonder if anybody perhaps has already developed code for this and is
willing to share. This is the reproducible code for the histogram
version obtained from the site:
def.par <-
2006 Feb 13
2
Plotting contour & filled.contour in one graph
Dear All,
I have a question on overlaying a filled.contour (e.g. on soil properties data) and contour (by elevation) in one graph. Both have the same z matrix dimension. I'm able to overlay both graph, but the plots dimension did not overlap well on the same plots. How can I have both filled.contour and contour on the same graph? The commands that I have written are as follows:
2005 Sep 28
1
scatterplot3d + density() + polygon(color)
Hi R Users,
How to use the function polygon()
together with the package scatterplot3d?
I am trying to color below of the curves
defined for the function density().
I tried to use the site: R GRAPH GALLERY
as tutorial.
I tried to adapt the example of this page:
[figure]:
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=30
[code]:
2007 Jul 26
2
multiple graphs
Does anyone have a simple explanation and example on how to add histograms or barcharts to an other graph like in the example at the R-graph gallery:
http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=109
looking at the code I'not undertand very well how to add graphs in arbitrary/clever position with an adequate scale.
If somebody have a simplier example with explanations it
2007 Aug 14
3
diffusing GIS data in maps
Hi-
I am trying to find a way to diffuse GIS data on a European map. I have a
dataset consisting of particular locations scattered across Europe,
along with magnitude and value information. I can plot these as discrete
points with something like the following:
"geocode" is a dataframe with four columns: LAT; LONG; MAGNITUDE;VALUE.
library(maps)
library(mapdata)
2009 Jun 08
2
Re flect Back to Back Histograms in x-axis?
I've looked long and hard for this, but maybe I am missing something...
There is a nice module that displays histograms reflected in the y axis,
i.e. http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=136
but is it possible to reflect in the x-axis, so to have two datasets, one
pointing up and one down rather than left and right? I haven't been able to
find a way to plot this
2010 Apr 14
1
Problems getting symbols() to show table data
Hello,
I am trying to create a graphic to help me visualise data. A (very
simplified) sample of the data is
http://n4.nabble.com/file/n1839676/circle_data.txt circle_data.txt :
Aug-07 Nov-07 Feb-08
data1 1 1.5 -1
data2 1 1.2 1.6
data3 1.3 1.4 1.8
data4 1.3
2010 Jun 07
2
graphical representation of a correlation between 3 variables (~30 datapoints)
Dear Ms and Mr R,
I am seeking a visually appealing presentation of 3 variables (~30
datapoints) that are correlated and that should to into the same direction.
The objective is to show that they do go in the same direction and what
differences there might be while also giving an idea of the values of the
variables. I had done this with simple bargraphs for 6 datapoints in the
past, but for
2005 May 19
2
ARIMA estimation
Good morning,
(sorry for my english)
i have some problems to put off by extimation ARIMA coefficients
the ones not significatives.
Exist a method to extimate only that significatives?
i use the command: arima().
thanks to all
Stefano
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