Displaying 20 results from an estimated 1000 matches similar to: "generalized matrix product ?"
2004 Mar 29
6
How to purchase R on CD
My organization has a policy against "installing software downloaded from
the Internet." There is a waiver procedure, but it is difficult and
lengthy. It is much easier to get approval to purchase software, even if
it is a CD copy of open-source.
However, a search on r-project.org didn't seem to show any way of obtaining
the distribution in this way.
Any clues would be
2004 Mar 29
6
How to purchase R on CD
My organization has a policy against "installing software downloaded from
the Internet." There is a waiver procedure, but it is difficult and
lengthy. It is much easier to get approval to purchase software, even if
it is a CD copy of open-source.
However, a search on r-project.org didn't seem to show any way of obtaining
the distribution in this way.
Any clues would be
2005 Mar 29
4
slide show with R
Trying to use R to build an interactive "slide show", to be displayed on a
projector. The purpose of the presentation is to show how one could
construct a simple graph using R. It is meant as a general overview rather
than as detailed instruction.
For example, something like the following sequence of commands. At
lecture time, I want the interpreter to read these commands one at a
2005 May 26
2
warnings from hist(): parameter XXX couldn't be set in high-level plot functionN
Hello -
This is not a real problem, just an annoyance. Sometimes, but not always,
I get a set of strange warnings from hist(). Example follows.
############################
#Produce a histogram of start dates for a set of field measurements.
# I didn't reproduce all the dates, because not sure it's relevant, but
here's a sample.
# Note the invalid date in the fifth element.
>
2004 Jan 09
1
degree-min-sec data
Hello -
Have both astronomic and geodetic data sets with values in the form
"ddd:mm:ss.sssss", where dd is an integer between -180 and 180, mm is an
integer between 0 and 60, and ss is a floating-point
number between 0 and 60.0. In order to do anything useful with these
values they need to be turned into their "decimal degree" equivalent.
Assuming the data is a vector y, the
2011 Feb 04
1
Quadratic regression: estimating the maximizing value
A bioligist colleague sent me the following data.
x Y
3 1
7 5
14 8
24 0
(Yes, only four data points.) I don't know much about the
application, but apparently there are good empirical
reasons to use a quadratic model.
The goal is to find the X value which maximizes the
response Y, and to find a confidence interval for this X
value.
Finding the maximizing X value is pretty
2003 Nov 03
1
Samba Error messages
Hi,
Can you help me.....I have downloaded the latest version of samba 3.0.0.
After having followed the instructions to configure & compile etc I am
getting the following error message when I run the command smbstatus.
smbstatus
Error trying to resolve symbol 'init_module' in
/usr/local/samba/lib/charset/CP850.so: ld.so.1: smbstatus: fatal:
/usr/local/samba/lib/charset/
2009 Aug 13
1
prop.test() - need algorithm or reference
Preparing a paper for a medical journal.
Using the prop.test() function in R (v2.4.0)
to compare two groups' response to data like the following.
A sample of 100 individuals from Population I, 18 with positive readings
from a certain test,
vs.
A sample of 148 individuals from Population II, 61 with positive readings.
Results look like this:
R version 2.4.0 Patched (2006-11-25
2010 Jan 07
2
ZFS upgrade.
Hello,
Is there a way to upgrade my current ZFS version. I show the version could
be as high as 22.
I tried the command below. It seems that you can only upgrade by upgrade
the OS release.
[ilmcoso0vs056:root] / # zpool upgrade -V 16 tank
invalid version ''16''
usage:
upgrade
upgrade -v
upgrade [-V version] <-a | pool ...>
[ilmcoso0vs056:root] /
2017 Jun 05
2
Backend implementation for an architecture with only majority operation instruction
Hey Sean,
So the processor does in-memory computing, it reads instructions and
operands from the memory array, performs the majority operations within the
memory array itself.
It does instructions using resistive majority which is AB'+B'C+AC
Like it does AND operation as
1: 0, 1, @C; //C=0
2: 0, 1, @Binv; //Binv=0
3: 1, @B, @Binv; //Binv=B
4: @A, @Binv, @C; //C=A.B
where each operation is
2005 May 31
1
Add Columns and Order for Rbind?
I am using rbind to add one list with one row to another master list. The
problem is that not all columns exist in both lists.
What methods would you recommend to reorder one list based on the column
names of another? If both sets have the same order and columns, I can
then use rbind. I can live with columns being added to the master list set
it makes the task easier using something like
2010 Oct 20
2
Job for senior quantitative analyst in Dublin
Senior Quantitative Research Analyst
Based in Irish Life Investment Managers, Lower Beresford Place, Dublin 1
Irish Life Investment Managers (ILIM), the investment management company within the Irish Life & Permanent Group manages assets of circa EUR30bn and provides fund management services to a large domestic and multi-national client base. We provide investment products to both
2006 Jul 25
3
Ruby hangman (was Re: List etiquette question)
"Beast" is more appropriate than you know. It''s definately Frankenstein
code. (read: it ain''t pretty, but it works - some of the time). Anyway, it
entertains my wife; not sure if hardcore programmers will get anything out
of it or not.
You might find it interesting (or pointless) that in a complete
bastardization of rails'' main reason for being it
2003 Apr 26
1
Maxtor 5000XT Firewire/USB2 Drive
Hi,
I am trying to get FreeBSD 4.7 to connect to a Maxtor 5000XT drive, but I get the following when connecting it ->
Apr 26 09:19:43 chowder /kernel: fwohci0: node_id = 0xc000ffc1, CYCLEMASTER mode
Apr 26 09:19:43 chowder /kernel: firewire0: 2 nodes, maxhop <= 1, cable IRM = 1 (me)
Apr 26 09:19:50 chowder /kernel: fwohci0: BUS reset
Apr 26 09:19:50 chowder /kernel: fwohci0: node_id =
2004 Nov 16
2
changing character to a vector name
Dear R People:
I would like to generate a vector/variable name from within a loop to be
passed to a table
function.
This is what I have so far:
>assign("p1",paste("raw3.df$",rw2$V1[3],sep=""))
>p1
[1] "raw3.df$CITIZEN"
>
Essentially, I want to use the raw3.df$CITIZEN along with another value to
generate a table.
However, I'm stuck here. I
2012 Aug 07
1
Unable to download R package
Hi,
I'm new to R. I'm using the R Gui and have tried to install additional packeges.
When I choose Packages/Install package(s) I get the following error...
utils:::menuInstallPkgs() Warning: unable to access index for repository http://cran.ma.imperial.ac.uk/bin/windows/contrib/2.15
Warning: unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.15
2016 Nov 23
1
New laptop recomendation
On 11/22/2016 3:50 PM, Dr. Mikeal Hughes wrote:
> When you go to the Dell Linux site and choose shop now you are taken to a page featuring Windows 10 machines.
[OT rant]
a pet peeve... webpile redesigns that mess everything up.
I was looking for info on the BLM (Bureau of Land Management) website
last night, and they'd totally redone the entire mess, it was all slick
and web 3.0-ish,
2006 Apr 23
4
Penalties of using an eval on every request
Hello RoR!
I''m building a rails app for hosting multi-page surveys. I set up
questionnaire, question, and question_component models. Now I''m
initializing them with some data.
survey.rb
q1 = Question.new "q1"
q1.quote "Welcome to a test of the new interviewing system."
q2 = Question.new "q2"
q2.quote "Do you like pie?"
2009 Dec 24
2
Locating code that is outside of functions in R scripts
Working with a number of scripts (text files with R commands) that I
"source" into R sessions from time to time.
The source() command is most convenient (at least for me)
if it only loads function definitions, and doesn't otherwise change the
interactive environment. For example, I might have a file that looks like
func1<-function() {
code
code
code
}
# this
2004 Nov 29
2
proper way to process dataframe by rows
This is a best practices / style question.
The way I use RODBC is I something like this:
> foo <- sqlQuery(db, "select * from foo")
> apply(foo, 1, function{...})
That is, I use apply to iterate over each result -- row -- in the
RODBC-produced dataframe. Is this how one generally wants to do this?
My concern is that when apply iterates over the rows, it uses
as.matrix()