Displaying 20 results from an estimated 900 matches similar to: "Reading CSV file"
2010 Jul 01
5
identifying odd or even number
Hi, I run into problem when writing a syntax, I don't know syntax that will return true or false if an integer is odd or even.
Thanks
OYEYEMI, Gafar Matanmi
Department of Statistics
University of Ilorin
P.M.B 1515
Ilorin, Kwara State
Nigeria
Tel: +2348052278655
Tel: +2348068241885
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2010 Dec 30
1
Problem with my analysis
Dear R-users,
I have problem or at cross-road on using discrminant
analysis for my set of data. All my dependent variables are all categorical,
hence the normalty assumption is no longer valid. Is it still right to use
discrminant analysis or is there any non-parametric technique or approach to
discriminant analysis?
Thanks OYEYEMI, Gafar Matanmi
Department of Statistics
2010 Dec 30
1
Discriminant analysis
Dear R-helpers
I am having problem or reservation analyzing my data
using discrminant analysis. The problem is that all my dependent variables are
categorical which means that the normalty assumption is no longer valid. Can one
still use discrminant analysis for such data? Is there non-parametric technique
of doing discrminant analysis in R.
Thanks
OYEYEMI, Gafar
2008 Aug 22
1
Retrieving sample points
Hi everyone. My problem is about multivariate analysis. Given a multivariate data X, of dimension (n by p), n is the number of observations while p is the number of variables. I wanted a sample of size p+1 that will have its product of the eigen values of the covariance matrix to be the minimum among all the possible samples (n combination (p+1)). I have written a syntax with worked well, but the
2007 Jul 04
3
working with matrix
I am new in R and I want to solve this problem;
I have a matrix X (with n-rows and p-colums) my problem is to obtain the products of the vectors of rows and print out only the maximum value and identify the row that gives the maximum value. Thanks
Oyeyemi, G.M
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Don't pick lemons.
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2017 Oct 31
0
lasso and ridge regression
Dear All
The problem is about regularization methods in multiple regression when the
independent variables are collinear. A modified regularization method with
two tuning parameters l1 and l2 and their product l1*l2 (Lambda 1 and
Lambda 2) such that l1 takes care of ridge property and l2 takes care of
LASSO property is proposed
The proposed method is given
2008 May 07
3
Importing data
Hi everyone, please I'm having problem importing data from Stata and excel. Help me out.
Thanks
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[[elided Yahoo spam]]
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2007 May 23
1
Eigen values
Dear,
My problems are;
1. Simulate a P-variate multivariate data set (N by P)
2. Draw samples of size n from N (with or without replacement)
3. Obtain eigen values of the variance-covariance matrix of each
sample drawn in (2) above.
4. print out the matrix of eigen values as well as the identity of
sample generating them.
Thanks
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2008 Mar 31
1
Retrieving locations of element of a vector or matrix
Hello all,
I have a problem of getting the locations of elements in a vector or matrix. I know one can use the command "which.min" or which.max" to get the location of minimum or maximum values in a vector. But is there any command to get the first k minimum values or maximum values in a vector.
Thanks
---------------------------------
You rock. That's why
2010 Nov 16
2
T1 with Robbed Bit Signaling
Has anyone here used T1s with RBS with asterisk?
Cary Fitch
2004 Dec 18
3
3rd party call control / CSTA , JTAPI or TAPI interfaces
(REPOST, sorry if you get this more than once.)
Hello all,
(Not sure if this is more appropriate for user or dev list)
Does asterisk have any sort of "standards based" api that can enable
an application to do call control on the switch ?
For example, if I am developing a call center application
using asterisk, I would like to be notified of inbound calls
and then be able to route
2020 May 04
2
RFC: [GlobalISel] propagating int/float type information
> On May 4, 2020, at 2:01 PM, Matt Arsenault via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
>
>
>> On May 1, 2020, at 14:00, Amara Emerson <aemerson at apple.com <mailto:aemerson at apple.com>> wrote:
>>
>> The other thing we could do is to assign speculative regbanks to vregs during translation (if the target wants to opt-in), and then RBS
2008 Nov 25
3
Line color based on data values?
Hi all
Does anyone know if it is possible when plotting a line or scatter plot, to selectively color the data points based on the data value? i.e. if plotting say the percentage change in stock price movements, to color +ve points in green and -ve points in red? And extending this to a user-defined range of colors based on the quartile of the data points?
Thanks
Rory
Rory Winston
RBS Global
2011 Nov 13
2
Running totals
I have a table which looks like this:
ACC BAL
1 hal -171245.33
2 opn -50487.63
3 pga 213440.38
4 prt 0.18
5 rbs 8292.54
How do I create a column which shows the running totals of the BAL columns?
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2008 Nov 24
4
Calculating sum of letter values
Hi all
If I have a string, say "ABCDA", and I want to convert this to the sum of the letter values, e.g.
A -> 1
B -> 2
etc, so "ABCDA" = 1+2+3+4+1 = 11
Is there an elegant way to do this? Trying something like
which(LETTERS %in% unlist(strsplit("ABCDA", "")))
is not quite correct, as it does not count repeated characters. I guess what I need is
2008 Dec 11
3
Downloading Reuters data from R
Hi R,
Can we download Reuters (3000 Xtra) data from R? Does ODBC package help
me in this? Or otherwise, is there a way to extract daily closing prices
data of Reuters from R?
Thank you very much,
Shubha
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2008 Oct 23
1
[R-SIG-Finance] forecasting earnings, sales and gross margin of a company...
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2010 Sep 21
1
random hangups on RBS T1
Hi,
I have an asterisk 1.4.35 server with a Digium TE410P (1st gen) four
port T1 card. Only one RBS T1 plugged into it right now.
I have been getting complaints about random hangups. Endpoints are all
remote, but I track very closely the latency (by graphing the output of
"sip show peers") which normally shows me when a peer is having
connectivity issues. Several that I have
2009 Feb 03
2
RBS T1 DID issue
Howdy,
New installation, trying to connect an RBS T1 with AMI/D4 framing and E&M
Wink. Using a Sangoma A102d and asterisk 1.4.22-2 on Centos5 (Trixbox
2.6.2.1).
Outbound calls work fine, but inbound calls fail to read the DID
information, and with debug set to 10 I get the following:
[Feb 2 19:40:23] DEBUG[25184] chan_zap.c: Monitor doohicky got event
Wink/Flash on channel 3
[Feb 2
2008 Dec 05
1
Cartesian Product Of Character Vectors
Hi all
(I'm sure this question has been asked before, but I cant find it).
If I have two character vectors:
> x <- c("aaa","bbb","ccc")
> y <- c("1","2","3")
How can I get the cartesian product of the string values?
> expand.grid(x,y)
Gives me a data frame with separate columns...however, I cant seem to get *apply