Displaying 20 results from an estimated 1200 matches similar to: "Plot not too dense line plot"
2008 Dec 07
5
How to force aggregate to exclude NA ?
The aggregate function does "almost" all that I need to summarize a datasets, except that I can't specify exclusion of NAs without a little bit of hassle.
> set.seed(143)
> m <- data.frame(A=sample(LETTERS[1:5], 20, T), B=sample(LETTERS[1:10], 20, T), C=sample(c(NA, 1:4), 20, T), D=sample(c(NA,1:4), 20, T))
> m
A B C D
1 E I 1 NA
2 A C NA NA
3 D I NA 3
4 C I
2006 Feb 09
6
inPlaceEditor ISSUES!
I have run into a problem that I have never created before. I am
using the scriptaculous inPlaceEditor
If I hit the cancel button, and rehit the editor it then creates two
textboxes, and if I repeat three input boxes, etc.!
Must be stupid simple, but I AM STUMPED!
DECO
2012 Apr 23
0
Different results for sparse and dense version of model matrix using contrasts and interactions
Dear all,
I've been getting different results from the sparse and dense version
of model.Matrix when used with sparse contrasts and interactions
between factors. The same happens when using model.matrix and
sparse.model.matrix. When calculating list.contrasts I get the same
results for sparse and dense contrasts (except the type of the matrix
is different of course). However, when I use these
2002 Oct 15
2
extremely dense tinc-mini-howto
Hi,
I'm trying to write an extremely dense tinc-mini-howto.
You can see it at:
http://keetweej.vanheusden.com/~folkert/tinc_mini_howto.html
Please send me suggestions on how I can make things better
and such.
Oh, and if someone could tell me how to configure tinc so
that it authenticates against the host on the other side,
please tell me! (couldn't figure that one out)
Folkert.
Tinc:
2010 Jul 02
2
is there a way to do dense rank in R
I have not been able to find a way to do dense rank in R
Here is an example of what I need
rank() gives the following
5 rank 1
7 rank 2
7 rank 2
9 *rank 4*
but I want
5 rank 1
7 rank 2
7 rank 2
9 *rank 3*
*
*
thanks
SS
[[alternative HTML version deleted]]
2006 Nov 29
1
Matrix*vector: coercing sparse to dense matrix for arithmetic
Hi,
I have a sparse Matrix (kronecker product of spline design matrices),
and I need to multiply each row by a number to get another matrix. If
the matrix is A and the numbers are stored in a vector k, with plain
vanilla matrices I would do
A*k
But when using the Matrix package (class of A is "dgCMatrix"), I get
the warning "coercing sparse to dense matrix for arithmetic".
2011 Oct 18
2
reading a dense file of binary number
hi all,
i have a file of the following format that i want to read into a matrix:
010101001110101
101010010111110
010010100100000
...
it has no headers or row names.
I tried to use read.table(), but it doesn't allow me to specify nothing as
the column separator (specifying sep='' means whitespace for that
function). read.fwf doesn't seem appropriate either.
[[alternative HTML
2002 Oct 06
6
error bars in line plots
Hi!
Could you tell me how I can draw a graph with error bars?
Sorry, I don't use R that often and I couldn't find it easily in the
documentation.
TIA
--
myriam
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info",
2007 Feb 01
3
Help with efficient double sum of max (X_i, Y_i) (X & Y vectors)
Greetings.
For R gurus this may be a no brainer, but I could not find pointers to
efficient computation of this beast in past help files.
Background - I wish to implement a Cramer-von Mises type test statistic
which involves double sums of max(X_i,Y_j) where X and Y are vectors of
differing length.
I am currently using ifelse pointwise in a vector, but have a nagging
suspicion that there is a
2009 Oct 24
1
operations on sparse matrices, and dense intermediary steps
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hi,
I'm doing some basic operations on large sparse matrices, for example
getting a row.
it takes close to 30 seconds on a 3Ghz machine, and shots the memory
usage up to the sky.
I suspect there are dense intermediary steps (which, if true would
defeat the purpose of trying to use sparse representaitons).
As much as I try understanding the
2012 Jan 26
0
[LLVMdev] dense maps
My problem was that the constructor for DenseMap has an undocumented
constraint.
explicit DenseMap(unsigned NumInitBuckets = 0) {
init(NumInitBuckets);
}
if given an explicit argument, requires that the argument be a power of 2.
It's checked by an assert in init(), but for some reason my code didn't
trip the assertion.
Is there a special way I must make to enable asserts?
Thanks,
2017 Jun 19
1
arrows: no vectors for "code" and "angle" parameters
I was teaching new R users to make some fun graphs. I had some arrows examples
worked up we came across a problem. The arrows function ignores 2nd
and following elements of vectors given as code an angle.
Would you please consider 1) allowing vectors for code and angle, or
2) returning an error or warning when user mistakenly supplies a
vector for those parameters? When code like this is
2010 Jan 05
5
mean for subset
Hello, does anyone know how to take the mean for a subset of observations?
For example, suppose my data looks like this:
OBS NAME SCORE
1 Tom 92
2 Tom 88
3 Tom 56
4 James 85
5 James 75
6 James 32
7 Dawn 56
8 Dawn 91
9 Clara 95
10 Clara 84
Is there a way to get
2012 Jan 26
5
[LLVMdev] dense maps
Reading the LLVM Programmer's Manual, the description of DenseSet mentions:
*Note that DenseSet has the same requirements for the value type that
DenseMap <http://llvm.org/docs/ProgrammersManual.html#dss_densemap> has.*
But when I read about DenseMap, I don't really see any requirements for the
values, just a warning about space. On the other hand, the *keys* have
special
2007 Sep 14
2
AGI script fails on IAX channels (from call file).
Hi Guys,
I have already tried this one on the developers list. I have not been
successful getting much back there and I have notified them that I will
post this on the users list instead. Hopefully somebody have tried
something similar and can help out.
I am developing AGI scripts on Asterisk and have run into some very
strange behaviour and I think this is a bug, but I am not completely
sure.
2002 Jan 28
4
Functions on matrix row level
Hi together,
I have some data in a matrix structure - say 1000 rows with 10 columns. And
I like to do some calculations (like max, avg or min) on row level.
The only solution I found so fare was using a loop like
for (i in 1:1000) {
max[i] <- max(matrix[I,])
}
It looks like that this is not very fast.
Does an other way exists?
Kind regards
Ulrich
2015 May 29
0
[PATCH v3] RFC: New virt-dib tool
virt-dib is a new tool to run the elements of diskimage-builder using
libguestfs.
---
More or less stable now, although with debug stuff here and there;
needs initial review, for being included. I would like to have it
reviewed at this point, so it can be broadly used.
TODO items open:
- improve the documentation
- review
- getting more testing (although it has been successfully tested for
2015 Jul 03
1
[PATCH v5] New tool: virt-dib
virt-dib is a new tool to run the elements of diskimage-builder using
libguestfs.
---
.gitignore | 5 +
Makefile.am | 3 +-
appliance/packagelist.in | 12 +
configure.ac | 1 +
dib/Makefile.am | 144 ++++++++
dib/cmdline.ml | 242 +++++++++++++
dib/dib.ml | 920 +++++++++++++++++++++++++++++++++++++++++++++++
2015 Mar 31
0
[PATCH] WIP: New virt-dib tool
virt-dib is a new tool to run the elements of diskimage-builder using
libguestfs.
---
Work in progress (debug stuff here and there), although I've submitting
it for initial review, for being included later when polished for good.
TODO items open:
- move Uname from builder to mllib
- improve the documentation
- review
- getting more testing (although it has been successfully tested for
2010 Apr 20
2
QCA3 segfault
Hi
I have just dwonloaded QCA3 onto this machine (ubuntu, karmic, amd64) and a
mac. The examples run fine on teh mac, but crashed R on ubuntu. Any help
much apprecia\ted.
Thanks
Richard
------------------------------------------------------------------------------
Terminal log:
> conditions <-
>