Displaying 20 results from an estimated 2000 matches similar to: "Need help: Loading a large data set."
2008 Apr 23
1
help needed: Plotting step by step.
Hello,
I have generated 2 Poisson processes and want to plot them on a single graph
in a step by step manner in order to be able to compare them. I tried plot
and biplot but it does not help, I could connect two points by hand for
point graph if they were 5 or 10 I have more than 200 such point to be
connected and Poisson cluster makes it difficult for me to even read them
properly.
Can anyone
2008 May 25
3
Emacs Bundle...
Hi List,
I remember someone mentioning a R-specific bundle of Emacs. Can you please
post link again?
Regards,
Atul.
--
Atul S. Kulkarni
Graduate Student,
Department of Computer Science,
University Of Minnesota,
Duluth, MN 55812.
www.d.umn.edu/~kulka053
---------------------------------------------------------
"Before you start some work, always ask yourself three questions - Why am I
2008 May 09
0
Graphing Continuous Time Markov chain.
I have the following data of continuous time Markov chain.
Time -
[1] 0.00000000 0.01219893 0.35903929 0.69378720 0.77247183 1.56008543
[7] 1.80607724 2.59023990 2.87196272 3.05311707 3.14737319 3.20758500
[13] 3.26668915 3.42428440 3.53324567 3.83668537 3.96784473 4.17196149
[19] 4.29982361 4.46163281 4.78519834 5.20381355 5.65441135 5.78623851
[25] 6.07602075 6.10351864 6.37001057 6.62859413
2008 Oct 18
1
Error: could not find function "readMat"
Hi All,
I installed this R.matlab package and tried using the sample code
>
> path <- system.file("mat-files", package="R.matlab")
>
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> # Reading all example files
> # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> for (version in 4:5) {
+
2005 May 13
2
About Voip Technology : RTP over TCP
hello All
I am reading information about VoIP technology
For that i am concentrating on SIP (Session Initiation Protocol) and
RTP (Real Time Transport Protocol).
I am interested in implementing RTP over TCP
I found that there are some disadvantages of TCP, some are
1) TCP doesn't support multicasting.
2) Through TCP is reliable, it heavily depends on retransmission of
lost or
2010 Apr 01
3
Using a string as a variable name - revisited
I would like to revisit a problem that was discussed previously (see
quoted discussion below). I am trying to do the same thing, using a
string to indicate a column with the same name. I am making "foo" a
string taken from a list of names. It matches the row where "item" =
5, and picks the corresponding "taxon"
> foo <- list$taxon[match(5,list$item)]
Let's
2010 Mar 24
1
vcov.nlminb
Hello all,
I am trying to get the variance-covariance (VCOV) matrix of the
parameter estimates produced from the nlminb minimizing function, using
vcov.nlminb, but it seems to have been expunged from the MASS library.
The hessian from nlminb is also producing NaNs, although the estimates
seems to be right, so I can't VCOV that way either. I also tried using
the vcov function after minimizing
2006 Apr 27
1
Filename too long
This is the rsync version I am using.
rsync version 2.5.5 protocol version 26
Copyright (C) 1996-2002 by Andrew Tridgell and others
<http://rsync.samba.org/>
Capabilities: 64-bit files, socketpairs, hard links, symlinks, batchfiles,
IPv6, 64-bit system inums, 64-bit internal inums
I have a file with a looooong name which I rsync from PC1 to PC2. (redhat-9)
I am getting the
2004 Feb 12
2
lattice: showing panels for factor levels with no values
How to show panels for factor levels of conditioning variables
which do have no values?
E.g. there are panels for "Grand Rapids" when they have values:
data( barley )
with( barley, dotplot(variety ~ yield | year * site, layout=c(6,2) ) )
There are no panels for "Grand Rapids"
when there are no values for "Grand Rapids":
my.barley <- subset( barley, ! ( site ==
2008 Jul 02
1
how do I read only specific columns using read.csv or other read function
Hi R people:
I have huge files with as many as 5000 columns. I'd really like to read
only certain columns of those files. I know column names I want to read.
I looked at the documentation of read.csv . Although there is a
col.names option, it allows users to specify the names of the columns,
rather than to pick the columns of interest.
Any suggestions on how to pick the columns I want to
2008 Sep 26
1
howto convert matrix of numeric values to Date class?
Hi:
I have a matrix, named "mat," of numeric values that are in days since
Jan 1, 1960.
I want to convert them Date class values so that I can do things like
seq( value , len=10, by="1 week")
where "value" is any of the matrix elements.
How do I do this?
Please reply to: philipsmith at alumni.albany.edu
Thanks!
Phil Smith
Duluth, GA
2010 Apr 17
1
Problems with labels and scaling in star diagrams
I have the following small dataset:
> stardata
NS HE EB CW RW PW
1 0 0.000 0.000 0.042 0.006 0
2 0 0.006 0.000 0.013 0.005 0
3 0 0.000 0.011 0.000 0.000 0
I have plotted the star diagrams as follows:
stars(stardata,
key.labels = dimnames(stardata)[[2]],
labels = NULL,
key.loc = NULL,
draw.segments=TRUE,
col.segments="gray",
lty="blank")
I am
2011 May 20
3
Java Bindings for libvirt
Hi
I looked at the java bindings for libvirt at
http://libvirt.org/sources/java/ . Latest version here is 0.4.7 whereas the
latest version of libvirtd is 0.9.1 . Does the java binding use latest
libvirtd ?
If not, can it be created easily ?
Also, is there any plan to support HyperV support in future ?
Thanks
Atul
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2009 Apr 15
2
Double seasonal holt winter using R
Dear Members,
I have been searching for a package in R which can handle multiple seasonality suggested by taylor(2003).
It will be great help if anybody has used this on R before (i.e. which package).
Thanks in Advance.
Best Regards
Atul Malik
[[alternative HTML version deleted]]
2008 Jul 23
3
how can I write code to detect whether the machine is Windows or Linux?
Hi R-People:
I use 2 machines: a machine with a Windows XP operating system, and
another with a Linux Ubuntu OS. I transport my code between these 2
machines. However, pathnames to data files always need to be "adjusted"
to account for the OS that I'm working on.
Here is my question:
How do I write code to detect whether I'm using the XP or the Linux
machine?
If I knew
2013 Apr 03
1
Select single probe-set with median expression from multiple probe-sets corresponding to same gene -AFFY
Hello All,
I need your help. I am analysing affymetrix data and have to select the
probe-set that has median expression among all the probe-sets for same
gene. This way I want to remove the redundancy by keeping the analysis
to single gene entry level. I am fully aware that it is not a nice thing
to do but I just have to do it.
To do so, I came across 'findLargest' function of
2010 Mar 15
1
map2poly - map lat/long cannot be unconstrained?
Using the maptools function "map2poly" I have created a map/polylist object
- a map of the Great Lakes. My goal is to passively plot additional data on
this map. Unfortunately I am not able to change (distort) the relative scale
of the axes for the map, and so the sample points do not line up correctly
on the map.
In the code below, notice that I have set the same axis ranges on each
2007 Dec 28
3
Any help on SMS and payment gateway in India
Hi,
I am developing a ROR application in India, wonder if anyone can suggest
good MS and payment gateways + any help on how to integrate them in my
application. Also, where do you host a ROR site in India ?
Thanks
atul
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2009 Oct 20
5
ssh user equivalence
We are getting some pushback from our SA group regarding root having ssh
user equivalence on the cluster where we run OCFS2.
Is it required to have the ssh user equivalence setup for the root user
when running OCFS2 ?
Thanks in advance,
Reid
Reid McKinley
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This message, including any
2012 Oct 18
1
Kaplan-Meier plotting quirks
Better would be to use interval censored data. Create your data set so that you have
(time1, time2) pairs, each of which describes the interval of time over which the tag was
lost. So an animal first captured at time 10 sans tag would be (0,10); with tag at 5 and
without at 20 would be (5,20), and last seen with tag at 30 would be (30, NA).
Then survit(Surv(time1, time2,