Displaying 20 results from an estimated 1000 matches similar to: "Using interactive plots to get information about data points"
2008 Oct 19
3
pairs plots in R
Hi,
is there a way to take a data frame with 100+ columns and large data set to do efficient exploratory analysis in R with pairs?
I find using pairs on the whole matrix is slow and the resulting matrix is tiny.
Also the variable of interest for me is a binary var Y or N .
Is there an efficient way to graphically view many variable relationships that does not look teeny ?
I could do
2008 Apr 12
4
Response to R across the university
This email isn't asking for assistance, but I thought R-help readers
would find it interesting. This week we offered a half-day
introduction to R for researchers at Augsburg University. The
response was astonishing. Although Augsburg has no medical faculty
and no engineers, there was far too much demand, with interest from
every faculty (barring theology, "for one small
2007 Mar 05
4
Identifying points in a plot that have duplicate values
I have code like this: -
#-----------------------------------------------------------------------
------------------------------------------------------
x=scan()
0 0 0 0 0 1 2 3 4
y=scan()
1 1 1 2 2 1 3 4 5
plot(x,y)
identify(0,1,3) #Allows me to select manually to identify co-ordinate
(0,1) as being duplicated 3 times
identify(0,2,2) #Allows me to select manually to identify co-ordinate
2007 Dec 18
9
Scatterplot Showing All Points
Hello all,
I'm trying to graph a scatterplot of a large (5,000 x,y coordinates) of data
with the caveat that many of the data points overlap with each other (share the
same x AND y coordinates). In using the usual "plot" command,
> plot(education, xlab="etc", ylab="etc")
it seems that the overlap of points is not shown in the graph. Namely, there
are
2010 May 05
2
Visualizing binary response data?
Hi All,
I'm dealing with binary response data for the first time, and I'm confused
about what kind of graphics I could explore in order to pick relevant
predictors and their relation with response variable.
I have 8-10 continuous predictors and 4-5 categorical predictors. Can anyone
suggest what kind of graphics I can explore to see how predictors behave
w.r.t. response variable...
Any
2007 Nov 22
6
Packages - a great resource, but hard to find the right one
There have been several constructive responses to John Sorkin's
comment, but none of them are fully satisfactory. Of course, if you
know the name of the function you are looking for, there are lots of
ways to search — provided that everyone calls the function by a name
that matches your search. If you think there might be a function,
but you don't know the name, then you have
2008 Feb 26
4
"Raw" histogram plots
Hello
I need to plot a histogram, but insted of using bars, I'd like to plot
the data points. I've been doing it like this so far:
h <- hist(x, plot = F)
plot(y = x$counts / sum(x$counts),
x = x$breaks[2:length(x$breaks)],
type = "p", log = "xy")
Sometimes I want to have a look at the "raw" data (avoiding any kind of
binning). When x
2011 Feb 11
1
Re. When is *interactive* data visualization useful to use?
Hello Tal,
You asked *When is it helpful to use interactive plots? Either for data exploration (for ourselves) and data presentation (for a "client")?*
My answer: It's helpful for checking data quality, for exploration with and without "clients", for checking results, and for data presenting.
Notes:
(1) It's difficult to explain interactive data visualization in
2008 Jul 28
1
Negative Binomial Regression
Hello.
I am attempting to duplicate a negative binomial regression in R. SAS uses
generalized estimating equations for model fitting in the GENMOD procedure.
proc genmod data=mydata (where=(gender='F'));
by agegroup;
class id gender type;
model count = var1 var2 var3 /dist=NB link=log offset=lregtm;
repeated subject=id /type=exch;
run;
Since my dataset has several observations for
2008 Jul 30
5
History pruning
Hi,
I find that a typical workflow for me looks something like this:
1) import some data from files
2) mess around with the data for a while
3) mess around with plotting for a while
4) get a plot or analysis that looks good
5) go back through my history to make a list of the shortest command
sequence to recreate the plot or analysis
6) send out that sequence to colleagues, along with the
2007 Sep 26
5
sprucing up the R homepage
I've been a R-user for quite some time. The graphic on the home page
looks a bit in need of polish so I applied some antialiased
transformations that Peter Dalgaard has previously posted to R-help
for improving graphic quality. I had to change the margins a bit, but
here is what it looks like:
http://www.broad.mit.edu/~finnyk/Rhome.jpg
Personally, I think it looks much better. Because
2010 May 13
1
Where has the stats-rosuda-devel mailing list gone?
I require some assistance with JGR, but following the mailing list link from http://jgr.markushelbig.org/FAQ.html leads me to http://mailman.rz.uni-augsburg.de/mailman/listinfo/stats-rosuda-devel which responds with
No such list stats-rosuda-devel
I was previously subscribed to this mailing list and want to resubscribe, but where has it gone?
Many thanks,
Oliver Mannion
Programmer
COMPASS -
2008 Aug 04
5
Are there any guis out there, which will allow editing of the graph?
Hi, all,
I would like to know if there is any gui interface out there
(academic or commercial) that allows one to edit R-language generated
graphs (e.g positioning x axis labels.) It would be nice to have
something like the user interface of Igor or Origin. I have already
used JGR and R-gui. These are good, but they don't allow one to
easily edit graphs. I have also tried
2009 Feb 05
1
JGR extension not working (PR#13501)
Full_Name: Erik Lukac
Version: R version 2.8.1 (2008-12-22)
OS: Mac OS 10.5
Submission from: (NULL) (141.84.28.167)
I tried to install JGR, but somehow it doesnt work.
> install.packages("JGR")
Warning in install.packages("JGR") :
argument 'lib' is missing: using
'/Users/erikl/R/i386-apple-darwin9.6.0-library/2.8'
trying URL
2010 Feb 03
2
selecting a group of points from a scatterplot?
Hi everyone,
is there a way/package in R that would allow me to select a group of
points from a scatterplot by drawing a circle around them or some such?
I can use 'identify' to pick individual points, but that gets tedious
if one has more than 10-20 spots.
I can easily select spots within a rectangle defined by picking points
using identify... but a simple rectangle sometimes will
2008 May 24
1
R outside of universities
R has spread far and wide with great success. It is not only used
extensively in universities, but also apparently in governmental
organisations and in industry. As the recent discussion of R's Pros
and Cons shows, there are many reasons for this. It would be
interesting to know just how widely R is used, where it is used most
(and where least or not at all). Does anyone have a
2004 May 26
3
SJava
Hi again!
I'm trying to download SJava from the http://www.omegahat.org/RSJava/
website.
I'm trying to get the binary.
I download the version from BDR's website.
When I unzip the file via unzip.exe, the new folder appears as SJAVA (upper
case).
>library(SJava)
Error in library(SJava) : There is no package called 'SJava'
>library(SJAVA)
Error in library(SJAVA) :
2004 May 17
1
Problem with package SJava
Hello all,
I'm trying to run SJava package (0.65 modified downloaded from :
http://stats.math.uni-augsburg.de/iPlots/alpha/) on windows NT 2000 and R
1.8.01. I have also downloaded the PDF Calling R from Java and when I want
to execute the following code:
import org.omegahat.R.Java.*;
import java.io.*;
public class Essai{
public static void main (String [] args) {
REvaluator e = new
2008 Aug 25
3
Maintaining repeated ID numbers when transposing with reshape
I have a dataset in "long" format that looks something like this:
ID TEST RESULT
1 A 17
1 A 12
1 B 15
1 C 12
2 B 8
2 B 9
Now what I would like to do is transpose it like so:
ID TEST A TEST B TEST C
1 17 15 12
1 12 . .
2
2009 Sep 03
3
Zoomable graphs with multiple plots
Hi folks,
I was wondering if anyone could confirm/deny whether there exists any
kind of package to facilitate zoomable graphs with multiple plots (eg,
plot(..) and then points(..)). I've tried zoom from IDPmisc, and
iplot from the iplot and iplot extreme packages, but as far I can
tell, neither can handle the task.
Does anyone know anything else that might work? Or generally know