Displaying 20 results from an estimated 9000 matches similar to: "abline within data range"
2007 Sep 03
4
sin(pi)?
Dear all,
I found something strange when calculating sin of pi value
sin(pi)
[1] 1.224606e-16
pi
[1] 3.141593
sin(3.141593)
[1] -3.464102e-07
Any help and comment should be appreciated.
Regards
Nguyen
____________________________
Nguyen Dinh Nguyen
Garvan Institute of Medical Research
Sydney, Australia
2008 Sep 01
2
Error with Rcmdr package
Dear all,
A friend of mine, who just installed Rcmdr package. When calling the
package, the error as following comes up. And actually, I've checked in CRAN
packages, the tcltk package doesn't exist anymore, but tcltk2.
Any help is appreciated
Regards
Nguyen D Nguyen
Garvan Institute of Medical Research
Sydney, Australia
library(Rcmdr)
Loading required package: tcltk
Loading Tcl/Tk
2007 Jul 05
1
Incidence estimated from Kaplan-Meier
Dear all,
I have a stat question that may not be related to R, but I would like to
have your advice.
I have just read a medical paper in which the authors report the 1-p (where
p is the cumulative survival probability from the Kaplan Meier curve) as
incidence of disease.
Specifically, the study followed ~12000 women on drug A and ~20000 women on
drug B for 12 months. During that period
2009 Feb 09
2
cwhmisc package requests update all the time!
Dear Christian,
Every single time check update package, ?cwhmisc? always requests updating.
I?m aware that the package was latest updated in CRAN on 20Nov2008.
Is there anything wrong with my R library or somethingelse?
I use R 2.8.1 on Window XP service pack 2
Regards
Nguyen
Garvan Institute of Medical Research
Sydney, Australia
2009 Mar 29
3
cmprsk- another survival-depedent package causes R crash
Dear Prof Gray and everyone,
As our package developers discussed about incompatibility between Design and survival packages, I faced another problem with cmprsk- a survival dependent packacge.
The problem is exactly similar to what happened to the Design package that when I just started running cuminc function, R was suddenly closed.
These incidents suggest that maybe many other survival
2007 Apr 02
3
Create a new var reflecting the order of subjects in existing var
Dear R helpers
I have a data set sth like this:
set.seed(123);dat <- data.frame(ID= c(rep(1,2),rep(2,3), rep(3,3), rep(4,4),
rep(5,5)),
var1 =rnorm(17, 35,2),
var2=runif(17,0,1))
dat
ID var1 var2
1 1 33.87905 0.02461368
2 1 34.53965 0.47779597
3 2 38.11742 0.75845954
4 2 35.14102 0.21640794
5 2 35.25858 0.31818101
6 3 38.43013
2010 Sep 20
3
How to set the limit of abline (regression line of lm)
Dear List,
I ran a regression model using lm and produced a regression line using
abline.
The line ranges from -20 to 20 in x axis,
and the section I only want is from -20 to 0.
Please kindly advise any function in abline () to set the range of x axes.
Thank you
Elaine
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2009 Mar 26
2
R 2.8.1 and 2.9 alpha crash when running survest of Design package
Dear Prof Harrell and everyone,
My PC: Window XP service pack 3 and service pack 2
R version 2.8.1 and 2.9 alpha
For the last 3 days, after updating R, my two computers have been facing
problems when running existing and runable R commands that involves with
Design package
I attempt to use 'survest', but I failed all the times with R (both 2.8.1
and 2.9 alpha) being shut down
2002 Jan 05
1
abline and log plots (PR#1243)
Full_Name: Stephen Eglen
Version: 1.4
OS: Redhat Linux 7.1
Submission from: (NULL) (128.252.204.36)
abline() produces a spurious line in addition to the correct line, at least with
the X11 driver. The postscript file generated also has nan values in it, which
causes an error under ghostscript.
xs <- c(0, 150, 300)
ys <- c(75, 40, 23)
par(mfrow=c(1,2))
plot(xs,ys, log="")
2010 Aug 12
3
Median abline how-to ?
Hi,
I'm newbie with R and don't really know how to add a median line to each
of the groups that is not all the plot long.
Here is a small working code that i have adapted for my purpose. If
somebody could tell me how to draw median lines on each group and not
all plot long.
ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <-
2013 Jan 08
4
error in a abline loop
Hello
I have data of body length and body weight of people of different skin colors.
I tried to write a code to plot body length and body weight according
to the skin colors.
(Thanks for Petr's advice so far.)
A loop is used but an error shows up in the following code.
It says:
unexpected '}' in
"
2000 Oct 26
3
Tick marks for abline
Dear R People:
I am drawing graphs for a College Algebra class. I would like to have
the x and y axes, along with the lines that I am plotting. So I leave
off the axes, and use xlim and ylim. Then I add my abline(v=0).
However, I would like to have tick marks on the abline. How would I do
that, please?
Thanks in advance!
Sincerely,
Erin M. Hodgess, Ph.D.
Associate Professor
Department of
2007 Mar 13
3
Highlight overlapping area between two curves
Dear R helpers,
I have a graph as following; I would like to highlight the overlapping area
between the two curves. Do you know how to do this?
Thank you in advance for your help.
Nguyen
###START
x1 <- rnorm(10000, 0.70,0.12)
x2 <- rnorm(10000, 0.90,0.12)
d1 <- density(x1)
d2 <- density(x2)
plot(range(d1$x,d2$x), range(d1$y, d2$y), type = "n",
xlab = "X
2011 Apr 04
1
Clarks 2Dt function in R
Dear Ben,
you answerd to Nancy Shackelford about Clarks 2Dt function.
Since the thread ended just after your reply,
I would like to ask, if you have an idea how to use this function in R
I defined it the following way:
function(x , p, u) {
(p/(pi*u))*(1+(x^2/u))^(p+1)
}
and would like to fit this one to my obeservational data (count)
[,1] [,2]
[1,] 15 12
[2,] 45 13
[3,]
2005 Feb 16
11
Load Balancer setting for Public Servers
Hello,
I have finished setting up the load balancer with IPROUTE ... also patch the
kernel to support DGD and now it''s working fine with the valuable guide at
LARTC website, Julian Anastasov, and the kind people in this mailing list.
Now I would like to launch a web server and a ftp server to the public but
I''m stuck into a problem and really need your help.
Currently internal
2010 Oct 06
4
problem with abline
Hi All,
I am running a scatter plot and trying to add a best fit line. I use an abline function, but get no line drawn over the points. I also get no error. I arm using V 2.10.0 on Windows 7.
Here is my code, including the SAS transport file import:
require (foreign)
require (chron)
require (Hmisc)
require (lattice)
clin <- sasxport.get("y:\\temp\\subset.xpt")
attach(clin)
2006 Oct 12
3
Extrapolated regression lines
Dear list members,
When I create a simple scatterplot with a regression line (se below) the
line is automatically extrapolated outside the range of data points. Why
is this and how can I prevent R from extrapolating the regression line?
Thank you in advance,
Johan
model<-lm(Herb~Para)
plot(Para,Herb)
abline(model)
2011 Oct 24
1
using predict.lm() within a function
I've written a simple function to draw a regression line in a plot and
annotate the line showing the slope
with a label. It works, as I'm using it, when the horizontal variable
is 'x', but gives incorrect results otherwise.
What's wrong?
# simple function to show the slope of a line
show.beta <- function(model, x="x", x1, x2, label, col="black", ...)
2009 Jan 30
2
Regression
Hello, I have problem
I have a, and b in regression
then I can't plot x,y with (and) a, b lines
can you help me ?
thx
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2017 Nov 27
5
Scatterplot of many variables against a single variable
Dear
I try to realize one scatter matrix which draws *one single variable to all
variables* with *regression line* . You can see my eviews version in the
annex .
How can I draw this graph with R studio?
Sincerely
Engin YILMAZ