Displaying 20 results from an estimated 3000 matches similar to: "ecdf manipulation"
2009 Jul 03
3
Color of ecdf plots
Hi.
I have the following two ecdf plots in one graph:
plot(
ecdf(....),
do.points=FALSE,
verticals=TRUE,
main=paste("Ecdf of distances ",DIM,sep=""),
col="red"
);
lines(
ecdf(....),
do.points=FALSE,
verticals=TRUE
);
How do I change the color of the resulting graph? Adding col="red" to either plot or lines results in an error
2012 May 04
1
Absolute cumulative curve with ecdf/stepfun?
Hi,
I have two variables ranging both from 0 to 1 (n=500 each).
Now I am interested in plotting them both in one plot (using ggplot2).
So far I used ecdf() (from an example I found with google) to get
values for the cumulatice distribution function which gives a relative
curve. I also want to do the same plot but using absolute cumulative
values instead of relative. Can that be done with ecdf or
2005 Nov 02
2
help with the coordinates of the ECDF object
Hi all R users
I would like to know how acess the coordinates
of the ECDF object.
I look for the example,
in this part:
######################
print(ls.Fn12 <- ls(env= environment(Fn12)))
######################
but I do not know to extract
the Y coordinate and put it in other variable.
My objective is to make a plot
and identify the points with labels.
############# Example by
2009 Sep 07
1
Plot 2 ecdf in one graph
Hi r-users,
I would like to compare the cdf between historical and predicted. My x.obs and x.pre are the frequency data in classes of 0-300.
I tried:
plot(ecdf(x.obs),ecdf(x.pre),type="l",col="red")
and it gives me:
Error in plot.stepfun(x, ..., ylab = ylab, verticals = verticals, pch = pch) :
argument 4 matches multiple formal arguments
Thank you so much for any
2008 Nov 08
2
lines, ecdf and colors
Hi. I'm trying to plot two ecdf's on the same graph using two
different colors. I can plot using the same color, but it doesn't
work when I change colors? Any suggestions? Thanks in advance for
your help.
x <- c(0.80, 0.83, 1.89, 1.04, 1.45, 1.38, 1.91, 1.64, 0.73, 1.46)
y <- c(1.15, 0.88, 0.90, 0.74, 1.21)
plot(ecdf(x))
# it works without col='blue', but doesn't
2011 Sep 24
2
two ecdf in the same figure
Hello,
is ot possible to draw two ecdf of vectors (say s1 and s2) on the same
figire with R.
plot function draws a new plot and there is no function like points or lines
to draw a second ecdf on the figure.
Regards
--
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Address
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Tunisia
tel: +216 97 246 706
fax: +216 71 391 166*
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2011 Oct 16
2
ecdf
Hi,
Newbie here. I read the R for Beginners but i still don't get this.
I have the following data (this is just an example) in a CSV file:
courseid numstudents
101 209
141 13
246 140
263 8
321 10
361 10
364 28
365 25
366 23
367
2007 May 30
1
Sort in ecdf
Hi!
I've noticed the ecdf() R code (R ver. 2.5.0) contains two call to sort:
--- [R-code] ---
ecdf <- function(x)
x <- sort(x)
n <- length(x)
if (n < 1)
stop("'x' must have 1 or more non-missing values")
vals <- sort(unique(x))
rval <- approxfun(vals, cumsum(tabulate(match(x, vals)))/n,
method
How to count from larger value to smaller value in ecdf (Empirical Cumulative Distribution Function)
2008 Feb 19
1
How to count from larger value to smaller value in ecdf (Empirical Cumulative Distribution Function)
Hi, all
ecdf function (Empirical Cumulative Distribution Function) in "stats"
package counts from smaller values to larger values.
However, I want to draw it by counting from larger value to smaller values
and I couldn't find options for this purpose.
How can I draw ecdf or ecdf like graph by counting from larger values to
smaller values.
Thank you in advance.
Hyunchul Kim
2004 Jun 03
1
ecdf plots, lines, and y values
Hi,
I have a question for the group, perhaps someone can help me
figure this out. I've already looked in the help files and they were
no help to me.
I have a vector of values and I am plotting an ecdf graph.
1. How can i draw a continuous line through the ecdf points? (lines
and type for the plot with an ecdf object does not work)
2. Supposing I have this line drawn. I can add a
2005 Nov 17
3
ECDF values
Dear UseRs,
maybe is a silly question: how can I get Empirical CDF
values from an object created with ecdf()?? Using
print I obtain:
Empirical CDF
Call: ecdf(t)
x[1:57] = 4.1, 4.4, 4.5, ..., 491.3,
671.27
Thanks in advance.
Regards,
Vito
Diventare costruttori di soluzioni
Became solutions' constructors
"The business of the statistician is to catalyze
the scientific
2004 Oct 17
3
ecdf with lots of ties is inefficient (PR#7292)
Full_Name: Martin Frith
Version: R-2.0.0
OS: linux-gnu
Submission from: (NULL) (134.160.83.73)
I have large vectors containing 100,000 to 20,000,000 numbers. However, they
only contain a few hundred *distinct* numbers (e.g. positive integers < 200).
When I do ecdf(v), it either runs out of memory, or it succeeds, but when I plot
the ecdf with postscript, the output is unnecessarily bloated
2002 Jul 25
1
Calling the correct one of 2 conflicting functions
Hello,
My specific system is
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 1
minor 5.1
year 2002
month 06
day 17
language R
Each of the hmisc and stepfun packages has a function
2010 Feb 27
1
Bug in ecdf? Or what am I missing?
x <- c(6.6493705109108, 7.1348436721241, 8.76886994525624,
6.12907548096037, 6.88379118678109, 7.17841879427688,
7.90737237492867, 7.1207373264833, 7.82949407630692,
6.90411547316105)
plot(ecdf(x), log="x")
It does the plot fine, but complains:
Warning message:
In xy.coords(x, y, xlabel, ylabel, log) :
1 x value <= 0 omitted from logarithmic
2006 Aug 25
2
plot question
Hi everyone,
I have what may appear to be a newbie question, but I have looked
everywhere I can think to look and I cannot find an answer. On page 35
of "An Introduction to R" the following command appears:
plot(ecdf(eruptions), do.points=FALSE, verticals=TRUE). What is the
do.points argument? I know what it does (suppresses printing of the
points) but where can I find help on it?
2002 Nov 25
1
Plotting continuous line types w/large datasets
Hi, R-Folks,
I have 3 large datasets that I combined in a single plot with
plot(ecdf(x1...),...)
plot(ecdf(x2...),add=TRUE,...)
plot(ecdf(x3...),add=TRUE,...)
The datasets are very similar, so it is difficult to get visual
separation among them. I tried many different line types without
success -- the lines all came out solid. Checking further, plot.ecdf()
calls plot.stepfun(), which calls
2001 Oct 22
3
Two questions
Greetings,
I have two questions that I could not answer from the
documentation.
A - ecdf and confidence intervals : Is there a (simple) way to generate
confidence intervals (95%) for a ecdf?
B - cross-validation of rpart trees : a colleague is using S to
generate decision tree and mentioned to me the use of cross-validation. Is
this function enabled in R ? if so, how should one proceed to
2003 Nov 17
4
cumulative distribution functions
hi y'all,
I am wondering if there is any special command, function,
package, etc to help me doing a cumulative distribution function,
with y-scale - probability scale.
I tried the help in R and i got the following answers:
cumsum(base) Cumulative Sums, Products, and Extremes
ecdf(stepfun) Empirical Cumulative Distribution Function
cpgram(ts) Plot
2008 Jan 11
1
Adding weights to ecdf
I would like you consider that the function ecdf
could be extended in the following way to handle weights
when computing Empirical distribution Functions. There
exist particular cases that supports this kind of
extension, see for example:
Rao, C. R., 1997.
Statistic and True. Putting chance to work.
World Scientific Publishing.
Cox, D. R., 1969.
Some Sampling Problems in Technology.
New
2012 Jun 14
2
plot cdf
Good Afternoon,
I'm trying to create a cdf plot, with the following code. It works well,
but I have little doubt, if you can help solve. When I create the plot,
like the graph line would still not appear with point
#cdf
x<-table(Dataset$Apcode)
View(s)
hist(s)
*plot(ecdf(x))*
x<-1 37607
2 26625
3 5856
4 25992
5 30585
6 16064
7 9850
..
...
..
186 52
--
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