Displaying 20 results from an estimated 1000 matches similar to: "History"
2000 Oct 14
2
Access to calculations in nls
Hi,
I would like to be able to access the calculated results from the nls package.
Using the example in R, fm3DNase1 we can reurn certain parts of the
calculations:
> coef(fm3DNase1)
Asym xmid scal
2.345179 1.483089 1.041454
> resid(fm3DNase1)
[1] -0.0136806237 -0.0126806237 0.0089488569 0.0119488569 -0.0025803222
[6] 0.0064196778 0.0026723396 -0.0003276604
2000 Sep 19
1
Graphing measured and fitted distributions
Hi All,
What I would like to do is the following:
a) fit a probability function to a measured data set. This would be user
specified, e.g., normal, lognormal, etc.
and then
b) take the probability function and plot it with the histogram of the
measured data set. This function would be displayed as a smooth curve. This
would involve "re-sizing" the probability function to match
2001 Jan 10
2
Levenberg-Marquardt algorithm
Hi All,
Is the Levenberg-Marquardt algorithm available in R. This method combines the
steepest descent algorithm and Newton's method.
Thanks in Advance,
Dermot MacSweeney.
**************************************************************
Dermot MacSweeney NMRC,
Email: dsweeney at nmrc.ucc.ie Lee Maltings,
Tel: +353 21 904178 Prospect Row,
Fax: +353 21 270271 Cork,
WWW:
2000 Oct 03
1
captions for than one figure
Hi,
I would like to have four plots plotted in the one figure and under each plot
the caption (a) ... (d). Using mtext I can get so far:
> plot(1:10, exp(1:10), log = "y", xlab = "xlab")
> mtext("(a)",side=1,line=4.5)
> plot(1:10, exp(1:10), log = "y", xlab = "xlab")
> mtext("(b)",side=1,line=4.5)
> plot(1:10,
2001 Feb 05
4
Removing "row.names"
I need to completely remove row.names from a dataframe. Are there other
ways to remove them (and not anything else) besides:
mydataframe<-data.frame(mydataframe, row.names=NULL)
I realize that this doesn't really remove the row.names; it merely replaces
the current row.names vector with the numbers 1..nrow (in quotes).
=====================
Dr. Marc R. Feldesman
Professor and
2001 Feb 05
4
Removing "row.names"
I need to completely remove row.names from a dataframe. Are there other
ways to remove them (and not anything else) besides:
mydataframe<-data.frame(mydataframe, row.names=NULL)
I realize that this doesn't really remove the row.names; it merely replaces
the current row.names vector with the numbers 1..nrow (in quotes).
=====================
Dr. Marc R. Feldesman
Professor and
2000 Oct 17
1
filed plot symbols
This example,
x<-1:10
y1<-x
y2<-x+2
plot(x,y1,pch=21,ylim=range(c(y1,y2)),type="o",lty="solid",bg="white")
points(x,y2,pch=22,type="o",lty="dashed",bg="white")
legend(7,3,legend=c("y1","y2"),pch=c(21,22),lty=c("solid","dashed"),bg="white")
works if I use pch = one of 21-25. But
2001 Mar 28
5
R and xterm
Howdy!
I have a problem that's similar to one discussed earlier on the list:
When not in xterm all the backspace and cursor-movements and stuff
are working well. Only when I start R in an xterm window backspace
appears as ^H and so on. What can I do?
Ragnar
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2000 Nov 14
3
2 plots 1 figure
How do you obtain two plots on the same figure?
for example
plot(rnorm(100)
plot(rnorm(100),type="l")
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Send "info", "help", or "[un]subscribe"
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2001 Apr 24
2
Reading and writing data
Hi All,
Two quick questions.
1) I am using write.table to output data.frames to ascii files, e.g.,
test <- data.frame(rnorm(2))
write.table(test,file="output")
"rnorm.2."
"1" -0.718560808193286
"2" -1.07965693020656
Is it possible to output the data without the first column, i.e.,
"rnorm.2."
-0.718560808193286
-1.07965693020656
2) Is
1998 Jun 24
1
SPAM: Important Legislative Alert (fwd)
this has serious ramifications for the "nt domains for unix" project.
luke.
---------- Forwarded message ----------
Date: Tue, 23 Jun 1998 13:25:57 -0500
From: Simple Nomad <thegnome@NMRC.ORG>
To: NTBUGTRAQ@LISTSERV.NTBUGTRAQ.COM
Subject: SPAM: Important Legislative Alert
June 23rd, 1998 - The World Intellectual Property Organization treaty has
already passed the US Senate and is
2004 Aug 06
1
solaris 2.7 libshout error
Has anyone seen this issue before on solaris 2.7. I keep getting this error
for libshout when trying to compile the example.
root#[/usr/local/src/libshout-1.0.9/example]#gcc -lshout -o test example.c
Undefined first referenced
symbol in file
socket
/usr/local/lib/gcc-lib/sparc-sun-solaris2.7/3.2/../../../libshout.so
recv
2011 Nov 15
4
Slow login to Samba domain
Hi,
I have noticed that the Windows 7 machines that I have recently
installed and joined to our domain take about 40 seconds on average to
go from sign in to the desktop displaying. I can't find any
explanation for the delay. When the machine are in a work group they
login very quickly and the XP machines login at a normal rate. I have
searched and not found any articles that are relevant.
2000 Oct 19
0
legend -- one more try
Dermot MacSweeney pointed out to me that after my "fix" of legend(),
points were no longer coming out placed in the middle of the lines, but at
the right-hand edge. It turns out that naively swapping the order of
point-drawing and line-drawing also messes up the bookkeeping that
legend() does on the current x-location. Here's my patch, which fixes
that bookkeeping (and incidentally
2003 Oct 29
1
restarting split.screen
Is there a way of `restarting' split.screen?
This is what I am getting:
> close.screen()
[1] 10 11 12 13
> close.screen(all=TRUE)
Error in par(args) : parameter "i" in "mfg" is out of range
> graphics.off()
> x11()
> close.screen()
[1] 10 11 12 13
> close.screen(all=TRUE)
Error in par(args) : parameter "i" in "mfg" is out of range
As
2003 Feb 12
2
rl_callback_read_char error on Solaris 7
This question is about compiling R-1.6.2 from source on a
Sparcstation-20 machine running Solaris 7, gcc-2.95.3 and
readline-4.2 (both gcc and readline from sunfreeware.com).
I searched the r-help archive and the FAQ. The errors seem to be
related to the binary readline libraries, and I have
/usr/local/lib/libreadline.a,libreadline.so@, and
libreadline.so.4.
The attached errors are from
2001 Apr 30
1
Segmentation fault linked to memory? (PR#929)
Hi Everyone,
The following rather extreme claim on memory causes a
segmentation fault on my installation:
fred <- matrix(1:1200, 20, 60)
littleOP <- function(x, y)
{
z <- as.vector(x) %*% t(as.vector(y))
dim(z) <- c(dim(x), dim(y))
z
}
littleOP(fred, fred) # this is OK
littleOP(littleOP(fred, fred), fred) # whoops! Segmentation fault
What's a bit strange
2002 Nov 01
1
recordPlot in 1.5.x, replayPlot in 1.6.0 problem
I have plots that were stored using recordPlot() in a fairly recent
but pre-1.6.0 version of R that will not replayPlot() in R 1.6.0. The
error message is
Error in replayPlot(x) : invalid hex digit in color or lty
The plots were stored in June (2002-6-14), each as an element of a
list named 'rpl'. The version of R that was current then is what I
used. At that time I was able to
2001 Apr 10
1
Segmentation fault in subscripting array of lists (PR#904)
I get a segmentation fault as follows:
> tmp <- array(list(), c(3, 4))
> tmp[[1, 2]]
NULL # as expected
> tmp[[1, 2]]$fred <- 1:10
> tmp # as expected
[,1] [,2] [,3] [,4]
[1,] "NULL" "List,1" "NULL" "NULL"
[2,] "NULL" "NULL"
2002 Jan 04
2
R CMD check (PR#1240)
SunOS fluke 5.8 Generic_108528-07 sun4u sparc SUNW,Ultra-Enterprise
R-1.4.0
Running from the command line
R CMD check chlib
results in the log file 00check.log:
* using log directory `/home/woodstock/hoffmann/R/Sources/chlib.Rcheck'
* checking for file `chlib/DESCRIPTION' ... OK
* checking package directory ... OK
* checking for sufficient/correct file permissions ... WARNING
*