Displaying 20 results from an estimated 9000 matches similar to: "Automatic creation of file names"
2005 Oct 08
1
add leading 0s to %d from png() {was Automatic creation of file names}
Dear useRs,
Is there a way to 'properly' format %d when plotting more than one
page on png()? 'Properly' means to me with leading 0s, so that the
PNGs become easy to navigate in a file/image browser. Lacking a better
solution I ended up using the code below, but would much prefer
something like
png("test_%d.png",bg="white",width=1000,height=700)
where %d
2005 Nov 22
2
(PR#8337) formatC adds leading space -- on some Windoze
>>>>> "KevinW" == Kevin Wright <kwright68 at gmail.com>
>>>>> on Mon, 21 Nov 2005 18:13:36 +0100 (CET) writes:
KevinW> Full_Name: Kevin Wright
KevinW> Version: 2.2.0
KevinW> OS: Windows 2000
^^^^^^^
this must be part of the problem
KevinW> Submission from: (NULL) (170.54.58.4)
KevinW> Apologies if
2006 Jul 19
2
Stirling numbers
Hi
anyone coded up Stirling numbers in R?
[I need unsigned Stirling numbers of the first kind]
cheers
Robin
--
Robin Hankin
Uncertainty Analyst
National Oceanography Centre, Southampton
European Way, Southampton SO14 3ZH, UK
tel 023-8059-7743
1999 Jun 29
1
text-plotting math & regular mixed ?
Maybe embarassing, but I can't quickly find out how to do this:
Mix expression() text and regular text __in a variable__ for plotting:
I can easily do
plot(1,type="n",main=expression(paste("Plot of ", x ^ alpha, "; ", alpha==2.3)
However, if alpha is really just in a variable, I don't know what to do
alpha <- 2.3
ch.a <- format(alpha)
and now
1999 Jun 29
1
text-plotting math & regular mixed ?
Maybe embarassing, but I can't quickly find out how to do this:
Mix expression() text and regular text __in a variable__ for plotting:
I can easily do
plot(1,type="n",main=expression(paste("Plot of ", x ^ alpha, "; ", alpha==2.3)
However, if alpha is really just in a variable, I don't know what to do
alpha <- 2.3
ch.a <- format(alpha)
and now
1997 Apr 30
2
R-alpha: New Incomplete Beta Function
Here is a drop-in replacement for the R incomplete beta function.
src/math/pbeta.c
It is a slightly modified version of the cephes library one from
Netlib. In the few cases I tried it seems to give at least 14
digit agreement with the one in S-PLUS (its hard to get more).
I'm not sure what performance is like. I'd like to know if it
helps with some of the problems which have been
1998 Feb 26
3
R-beta: quantile
I do:
x<-rnorm(1000)
quantile(x,c(.025,.975))
2% 98%
-1.844753 1.931762
Since I want to find a 95% confidence interval, I take the .025 and .975
quantiles. HOWEVER R says I have the 2% (not 2.5%) and 98% (not 97.5%)
points. Is it just rounding the printed 2% and 98%, or is it REALLY
finding .02 and .98 points instead of .025 and .975?
Thanks for any help.
Bill Simpson
1998 Feb 26
3
R-beta: quantile
I do:
x<-rnorm(1000)
quantile(x,c(.025,.975))
2% 98%
-1.844753 1.931762
Since I want to find a 95% confidence interval, I take the .025 and .975
quantiles. HOWEVER R says I have the 2% (not 2.5%) and 98% (not 97.5%)
points. Is it just rounding the printed 2% and 98%, or is it REALLY
finding .02 and .98 points instead of .025 and .975?
Thanks for any help.
Bill Simpson
2002 Jul 03
2
Scientific notation
I'm writing a load of output to a file using cat(...), but I can't work out
how to turn off scientific notation for small numbers. When I originally
tried this a while a go I ended up building up a string variable, which is
rather clumsy...
Many thanks,
David
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read
2005 Oct 26
2
"intelligent" rsync scripts?
I use rsync for backing up user data, profiles, important network shares
etc. (from several locations over WAN).
Overall it works flawlessly, as it transfers only changes, but sometimes
there are some serious hiccups.
Suppose this scenario, suppose it's 1 GB of files:
user shares:
/home/joe/data/file1
/file2
/...
/file1000
Now the user
2004 Aug 19
1
precision problems in testing with Intel compilers
I compiled the 1.9.1 src.rpm with the standard gnu tools and it works.
I tried compiling the 1.9.1 src.rpm with the Intel 8 C and FORTRAN
compilers and it bombs out during the testing phase:
comparing 'd-p-q-r-tests.Rout' to './d-p-q-r-tests.Rout.save' ...267c267
< df = 0.5[1] "Mean relative difference: 5.001647e-10"
---
> df = 0.5[1] TRUE
2006 Feb 22
1
Gram-Charlier series
Good day everyone,
I want to use the Gram-Charlier series expansion to model
some data. To do that, I need functions to:
1) Calculate 'n' moments from given data
2) Transform 'n' moments to 'n' central moments, or
3) Transform 'n' moments to 'n' cumulants
4) Calculate a number of Hermite polynomials
Are there R-functions to do any of the above?
1998 Jan 06
1
IEEE 754 Style Arithmetic
I have been looking at the R mathematical library with a view to
making changes so that it will handle IEEE 754 entities like NaN and
+/- Inf. This appears to be not too hard and I am fairly well down
the path to converting the existing code (and simultaneously
converting some of the more suspect algorithms to something more
solid).
Q1:
I have looked at the Splus implementation and I have a bit
2012 May 03
1
Identifying case by groups in a data frame
Hi everyone,
I would like to identify the case by groups that is just bigger that
avg plus sd. For example, using species as group and petal.wid as my
variable in the iris data.
What's the better way to doit? creating a function?
So,the question is to identify the single element of each species that is just larger than a cut-off point (i.e. larger than mean + sd)
I made this, but I can not
2004 Jul 01
2
RMySQL
Hi!!
I want some help to install the RMySQL package. I've tried to configure some
things but i'm still getting erros. Anybody could help me??
Thank's
Talita Perciano Costa Leite
Graduanda em Ci??ncia da Computa????o
Universidade Federal de Alagoas - UFAL
Departamento de Tecnologia da Informa????o - TCI
Constru????o de Conhecimento por Agrupamento de Dados - CoCADa
2010 Feb 16
3
error : unused argument(s) when boxplot
Dear all,
I am a total beginner in R, so sorry if this is the wrong place. I am using R 2.10.1 on a Mac (Mac OS 10.6.2).
I have this small dataset :
growth sugar
75 C
72 C
73 C
61 F
67 F
64 F
62 S
63 S
I have no problem reading the table, or getting the summary, but if I try boxplot(growth~sugar, ylab="growth", xlab="sugar", data=Dataset), I have the following error :
2005 Jan 10
4
Data Set
Hi everybody,
I'm studying descriptive statistics using R and I have to make an important
work about that. I need some help to choose a good data set to apply those
statistics. Does anybody know a good data set I could work with?
Thanx,
Talita Perciano Costa Leite
Graduanda em Ci?ncia da Computa??o
Universidade Federal de Alagoas - UFAL
Departamento de Tecnologia da Informa??o - TCI
2007 Sep 28
1
errorbar il lattice plot
Hi Everyone,
I would like to add errorbars to a lattice plot. I already have a function that
adds error bars to a plot (originally written by George Gilchrist) which takes
as arguments the coordinates of the point and then the size of the error bar. I
would like to integrate it in my lattice code but I seem to be stumped.
I can put the error bar function inside my code as if it were a panel
2015 Sep 03
1
Doubts on incremental backup and command repetition
Hi,
I am trying to use rsync for incremental backup and I am facing some issues. I would like to ask your help to understand what is going on and have the proper command line.
1) my goal is
I the following folders:
./dest:
file3.txt
./orig:
file1.txt file10.txt file2.txt file20.txt
And I would like to have as incremental backup
./dest:
backup file1.txt file2.txt file3.txt
2004 Jun 01
3
Parametric Curves
Hi everybody!
I'm trying to plot a parametric curve (three dimensions) using R but I
didn't obtain good results. Somebody have already done something like that?
Please help me!
Talita Perciano Costa Leite
Graduanda em Ci??ncia da Computa????o
Universidade Federal de Alagoas - UFAL
Departamento de Tecnologia da Informa????o - TCI
Constru????o de Conhecimento por Agrupamento de Dados -