Displaying 20 results from an estimated 8000 matches similar to: "Change the default resolution for plotting figures?"
2012 Apr 12
1
using wildcards in download.file?
Hi,
Do you know whether it is possible to use wildcards in download.file()?
For example:
url = "ftp://abc.com/*.*" # to download all the files in the ftp folder
download.file(url,destfile=...) # does not work, any solutions?
Thanks!
JIng
2008 Jun 02
2
High resolution figures for a paper?
Dear Rusers,
My manuscript has been conditionally accepted recently. The problem to
generate the high resolution figures in R for the manuscript cannot be
solved by me.
The journal editor ask me to generate the figures with a minimum resolution
of 500 dpi. I have tried the *menu-driven method* to save the figures as
JPEG (100% printed quality), but the results seem not to be very good. I
have
2009 May 08
1
graph resolution windows (dpi) using x11 device
Dear list members,
After looking in the www, I found this subject has been in discussion
previously on the mailing list, although I could not solve it. I also
found two wikis, but similarly, could not reach a conclusion.
I need to re-produce my figures with 1200 dpi, in tiff format, for a
journal (off course :-s).
I am working on windows xp professional, R version 2.7.1, using x11 to
open
2012 Feb 20
3
How to determine a subset of a binary strings?
Hi,
I need some neat ways of determing a subset of binary strings. For example,
x=c(0,0,1), y=c(0,1,1), z=c(0,1,0). So x is a subset of y and z is also a
subset of y, but x is not a subset of z.
I tried to search R functions and packages but no hits. Any ideas?
Best,
Jing
--
Jing Tang, PhD
Senior Researcher
Finnish Institute of Molecular Medicine (FIMM)
FI-00014 University of
2019 Jun 23
2
Calculation of e^{z^2/2} for a normal deviate z
I agree with many the sentiments about the wisdom of computing very
small p-values (although the example below may win some kind of a prize:
I've seen people talking about p-values of the order of 10^(-2000), but
never 10^(-(10^8)) !). That said, there are a several tricks for
getting more reasonable sums of very small probabilities. The first is
to scale the p-values by dividing the
2019 Jun 21
4
Calculation of e^{z^2/2} for a normal deviate z
You may want to look into using the log option to qnorm
e.g., in round figures:
> log(1e-300)
[1] -690.7755
> qnorm(-691, log=TRUE)
[1] -37.05315
> exp(37^2/2)
[1] 1.881797e+297
> exp(-37^2/2)
[1] 5.314068e-298
Notice that floating point representation cuts out at 1e+/-308 or so. If you want to go outside that range, you may need explicit manipulation of the log values. qnorm()
2010 Dec 14
2
300 dpi and eps:
Hi,
I have a run of 5 graphs that I want to place them under the same page.
Everything works fine to place them in a pdf file , or eps file, but
when it comes to have a high quality of
300 dpi these graphs are not good. For example I open the eps file with
Adobe Illustrator (AI) and it shows that it is a 72dpi graph. If I start
with a 72dpi graph AI cannot improve this to 300 dpi. Q: HOW CAN A
2019 Jun 24
2
Calculation of e^{z^2/2} for a normal deviate z
>>>>> William Dunlap via R-devel
>>>>> on Sun, 23 Jun 2019 10:34:47 -0700 writes:
>>>>> William Dunlap via R-devel
>>>>> on Sun, 23 Jun 2019 10:34:47 -0700 writes:
> include/Rmath.h declares a set of 'logspace' functions for use at the C
> level. I don't think there are core R functions that call
2019 Jun 21
4
Calculation of e^{z^2/2} for a normal deviate z
Hello,
Well, try it:
p <- .Machine$double.eps^seq(0.5, 1, by = 0.05)
z <- qnorm(p/2)
pnorm(z)
# [1] 7.450581e-09 1.228888e-09 2.026908e-10 3.343152e-11 5.514145e-12
# [6] 9.094947e-13 1.500107e-13 2.474254e-14 4.080996e-15 6.731134e-16
#[11] 1.110223e-16
p/2
# [1] 7.450581e-09 1.228888e-09 2.026908e-10 3.343152e-11 5.514145e-12
# [6] 9.094947e-13 1.500107e-13 2.474254e-14 4.080996e-15
2007 Aug 15
1
Errors from dovecot 1.1
I downloaded and installed dovecot 1.1 nightly build yesterday. Here is a
the errors I collected from the log file.
dovecot: Aug 15 14:19:29 Error: IMAP(use at doamin): Log synchronization error
at seq=7,offset=24 for /data2/mail/we/webmail.us/ji/jing/dovecot.index:
Extension introduction for unknown id 2
dovecot: Aug 15 14:19:29 Error: IMAP(use at doamin): Log synchronization error
at
2004 Nov 02
3
n-th power of a matrix
Hello all,
To calculate the power of a matrix, I used the command "mtx.exp(X, n)", but
there is an error saying "Error: couldn't find function "mtx.exp"". How can
I deal with this problem?
Jing
2019 May 30
2
use of buffers in sprintf and snprintf
Hi again,
I realised it is useful to replicate the warnings locally without relying on CRAN automatic check; instead of R(-devel) CMD check --as-cran package_version.tar.gz one can use
R CMD check --configure-args=""
and in my case the WARNINGS were initially given with https://www.stats.ox.ac.uk/pub/bdr/gcc9/README.txt and those specification might as well used in --configure-args
2024 Apr 16
1
read.csv
?s 11:46 de 16/04/2024, jing hua zhao escreveu:
> Dear R-developers,
>
> I came to a somewhat unexpected behaviour of read.csv() which is trivial but worthwhile to note -- my data involves a protein named "1433E" but to save space I drop the quote so it becomes,
>
> Gene,SNP,prot,log10p
> YWHAE,13:62129097_C_T,1433E,7.35
> YWHAE,4:72617557_T_TA,1433E,7.73
>
2006 Mar 16
4
problem for wtd.quantile()
Dear R-users,
I don't know if there is a problem in wtd.quantile (from library "Hmisc"):
--------------------------------
x <- c(1,2,3,4,5)
w <- c(0.5,0.4,0.3,0.2,0.1)
wtd.quantile(x,weights=w)
-------------------------------
The output is:
0% 25% 50% 75% 100%
3.00 3.25 3.50 3.75 4.00
The version of R I am using is: 2.1.0
Best,Jing
2017 Jun 04
2
read.table
Hi All,
I wonder if there should be one character for quote= in read.table, i.e.,
> args(read.table)
function (file, header = FALSE, sep = "", quote = "\"'", dec = ".",
...
I have a file containing the following lines,
08248-GOTERM 3'-phosphoadenosine 5'-phosphosulfate biosynthetic process
08279-GOTERM 3'-phosphoadenosine
2015 Jul 14
2
Use cairo fallback resolution greater than 72dpi in cairo_pdf and cairo_ps in grDevices
Dear all,
In grDevices R functions cairo_pdf and cairo_ps it is mentioned that when transparency (alpha channels) are used in vector output, it will rasterize the PDF or postscript exported graph at a resolution of 72 dpi : https://stat.ethz.ch/R-manual/R-devel/library/grDevices/html/cairo.html
You can see the problem if you try
library(ggplot2)
cairo_ps(file = "test.eps",onefile =
2008 Feb 07
5
pnorm
Dear R list,
I calculated a two-sided p values according to 2*(1-pnorm(8.104474)), which gives 4.440892e-16. However, it appears to be 5.30E-16 by a colleague and 5.2974E-16 from SAS. I tried to get around with mvtnorm package but it turns out to be using pnorm for univariate case. I should have missed some earlier discussions, but for the moment is there any short answer for a higher
2019 May 31
2
use of buffers in sprintf and snprintf
No, that will make it even worse since you'll be declaring a lot more memory that you actually have.
The real problem is that you're ignoring the truncation, so you probably want to use something like
if (snprintf(tempname, sizeof(tempname), "%s.%d", of1name, j) >= sizeof(tempname)) Rf_error("file name is too long");
BTW: most OSes systems have a path limits that
2012 Mar 22
2
Strsplit with a separator of ||
Hi,
I tried to use strsplit for separating a string with || like
strsplit(string,"\\||") but it returned each single character was separated.
For example:
strsplit("a||bc","\\||")
[[1]]
[1] "a" "" "" "b" "c"
where I want the result to be "a" and "bc".
Any ideas?
Thanks!
Best,
2013 Mar 18
9
how to create a full-virtualization xen VM with autoyast
Hi.
I want to create a full-virtualization xen VM with autoyast installation.
how can i do that? and how does the configuration file to be configured?
I use suse linux 11 SP2.
looking forward your replay.
Jing.
--
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