Displaying 20 results from an estimated 800 matches similar to: "how to change variable names in corrgram diagonal"
2011 Jun 28
2
problem with corrgram function
Dear list,
I have a problem with the "corrgram" function. It does not seem to
"color" large negative correlations, while the same correlation, if
positive, provides no problems. Is this a bug?
require(corrgram)
a = seq(1,100)
b = -jitter(seq(1,100), 80)
cor(a,b) # r about -.96
c=as.data.frame(cbind(a,b))
corrgram(c, order=NULL, lower.panel=panel.pie,upper.panel=NULL,
2013 Aug 22
1
corrgram (package corrgram): how to plot multiple correlograms in the same page?
Hello,
I am trying to plot a few correlograms on the same figure, with the function corrgram() from the package corrgram. However, the function does not seem to use the base graphic system, as setting out the multiple figure layout with, e.g., par(mfrow=c(2, 2,)) does not work.
Does anybody know a workaround for this?
Many thanks in advance for any advice
best
giuseppe
--
Giuseppe Pagnoni,
2012 Aug 28
2
corrgram
Hello,
are there fixed threshold values for the changes between different
shades of blue in the corrgram?
Or is a chang relative depending on the data?
I didnt get it in manual.
Thank you very much, best regards
Claudia
2013 Jun 27
1
corrgram with two datasets
Hi,
I would like to display inter-parameter scatter plots like those with the corrgram package (see upper triangle here: http://www.statmethods.net/advgraphs/images/corrgram2.png ), just that I would like to plot two datasets instead of one. Say one with black and one with red dots. Or a merged dataset where an indicator column is used to assign different colors to particular dots - with still
2012 May 25
1
Correlograms: using boxes and different variables on rows and columns
I'm trying to make correlograms using corrgram. See below for a simple
example.
####
library(corrgram)
data(baseball)
vars1 <- c("Assists","Atbat","Errors","Hits","Homer","logSal")
vars2 <- c("Putouts","RBI","Runs","Walks","Years")
2011 May 06
1
How to alter circle size
Hello all,
I'm trying to create a heatmap using 2 matrices I have: z and v. Both
matrices represent different correlations for the same independent
variables. The problem I have is that I wish to have the values from matrix
z to be represented by color intensity while having the values from matrix v
to be represented by circle size. I currently have the following in front of
me and an unsure
2012 May 09
5
Dotchart showing mean and median by group
Given this example
mean.values<-colMeans(VADeaths)
mean.values<-apply(VADeaths, 2, mean)
median.values<-apply(VADeaths, 2, median)
dotchart(VADeaths, gdata=mean.values)
dotchart(VADeaths, gdata=median.values)
is it possible to ?combine? a single dotchart showing both the mean and the
median for each single group (with different plotting symbols)?
?is it that possible with the use of
2012 Mar 22
2
how to avoid grid overlapping in a boxplot
Given the following chart: i.e. a boxplot with a grid
boxplot(x~y)
grid(nx=NA,ny=NULL)
my question: how to avoid the overlapping of boxes (and whiskers) by grid
lines?
thank you for any help pointing me in the right direction
max
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2010 Jun 23
2
Analyzing large transition matrix
Let's say you have a dataframe of car trade-ins. For example, each row
contains
oldcar newcar qty
and a typical entry could be
lexus bmw 1
I put the qty column to allow for fleet purchases, where one purchase
may convert multiple cars at once.
I'd like to show what's going on. I could do a histogram of newcar to
show the frequency each type of car is bought. If there
2011 Sep 09
4
reshape data from long to wide format
This is my reproducible example:
example<-structure(list(SENSOR = structure(1:6, .Label = c("A", "B", "C",
"D", "E", "F"), class = "factor"), VALUE = c(270, 292.5, 0, 45,
247.5, 315), DATE = structure(1:6, .Label = c(" 01/01/2010 1",
" 01/01/2010 2", " 01/01/2010 3", " 01/01/2010
2010 Aug 19
1
Correlograms and linear regression
Dear all,
I generated a Correlograms and used the panel.ellipse (confidence ellipse
and smoothed line) option. Is there a way to get instead of the smoothed
line the linear regression?
Thanks,
As hz
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2012 Sep 20
3
lattice dotplot reorder contiguous levels
my reproducible example
test<-structure(list(site = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 2L,
2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 3L,
3L, 3L, 3L, 3L, 3L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L,
4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 4L, 5L), .Label = c("A",
"B", "C", "D", "E"), class = "factor"),
2011 Jun 01
2
lattice panel fine control
Hello R experts,
what follows is my reproducible example:
mydata<-structure(list(ped.avg = c(335.9, 110.8, 645.7, 638.9, 1468.1,
126.4, 4811.1, 88.5, 868.5, 656.6, 723.6, 654, 2.8, 15, 14.2,
17.5, 15.4, 112.1, 424.7, 18.3, 19.9, 28.6, 25.6, 23.5, 15.4,
27, 62.1, 15.6, 74.6), ped.erst = c(96, 53.2, 615.2, 616.5, 512.9,
56.2, 1851.8, 57.1, 579.5, 613.2, 601.1, 613.6, 1.3, 6.3, 6.5,
6.1,
2007 Dec 03
1
cor(data.frame) infelicities
In using cor(data.frame), it is annoying that you have to explicitly
filter out non-numeric columns, and when you don't, the error message
is misleading:
> cor(iris)
Error in cor(iris) : missing observations in cov/cor
In addition: Warning message:
In cor(iris) : NAs introduced by coercion
It would be nicer if stats:::cor() did the equivalent *itself* of the
following for a data.frame:
2012 Apr 22
2
[LLVMdev] Problem about the type of Function's arguement in llvm
in the tutorial of official llvm doc, chapter 3, it deals with arguement
of function as follow:
for (Function::arg_iterator AI = F->arg_begin(); Idx != Args.size();
++AI, ++Idx) {
AI->setName(Args[Idx]);
// NamedValues is map<string, Value*>
NamedValues[Args[Idx]] = AI;
and when it try to get the value of arguement, it simply does:
Value
2012 Jan 10
1
Correlograms
I would like to make a correlogram in which I also have a correlation matrix
instead of one of the panels.
Is that possible?
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2012 Jun 06
5
how to add a vertical line for each panel in a lattice dotplot with log scale?
by considering this example from barley dataset
#code start
dotplot(variety ~ yield | site, data = barley,
scales=list(x=list(log=TRUE)),
layout = c(1,6),
panel = function(...) {
panel.dotplot(...)
#median.values <- tapply(x, y, median) # medians for each
variety
#panel.abline(v=median.values, col.line="red") # but this
2012 Apr 23
1
[LLVMdev] Problem about the type of Function's arguement in llvm
I read the tutorial doc and some info of SSA, finally understand it. Thanks
for your help.
And the segmentation error of loading arguementation occurs, (gdb error
info)
Program received signal SIGSEGV, Segmentation fault.
0x0855bb68 in llvm::LoadInst::LoadInst(llvm::Value*, char const*, bool,
llvm::Instruction*) ()
code is like follows:
//#include necessary header files
int main(){
2012 Mar 28
1
xyplot lattice fine control of axes limits and thick marks (with log scale)
After a long and winding road (sorry but I'm a novice) I get to a final
result which is quite close to what I need;
nevertheless I would like to tweak a little further the xyplot so that I can
get ***for each single panel defined by variable z*** a finer control over:
-the x and y the limits: I would like to be the same for both axes;
-the number of thick marks: again I would like to be same
2003 Sep 11
3
Flipping a heatmap
Hi
I am using the heatmap function in package mva to look at large
correlation matrices visually.
Is there any way to "flip" the output of heatmap plot left-right so
that, if presented with a correlation matrix, it plots the unity
elements in the correlation matrix along a diagonal from top left to
bottom right?
For example:
library(mva)
x = matrix(rnorm(1000), ncol=10)
z = cor(x)