Skip to content

Search Archives

Search tips
from:Name Search by author name, e.g. from:Duncan Murdoch "exact phrase" Match an exact phrase word1 word2 Match messages containing both words Date range Use the date pickers to filter results to a time period

Use the list dropdown to narrow results to a specific mailing list. Combine from: with other terms to filter by author and content.

9 results for “from:Ashraf Chaudhary”

Removing rows with missing values
Ashraf Chaudhary · Mar 21, 2006 · r-help

An embedded and charset-unspecified text was scrubbed... Name: not available Url: https://stat.ethz.ch/pipermail/r-help/attachments/20060321/109af224/attachment.pl

Removing rows with missing values
Ashraf Chaudhary · Mar 21, 2006 · r-help

An embedded and charset-unspecified text was scrubbed... Name: not available Url: https://stat.ethz.ch/pipermail/r-help/attachments/20060321/c56aa2d0/attachment.pl

Scalling/Centering the Data by an Index
Ashraf Chaudhary · Jul 12, 2006 · r-help

An embedded and charset-unspecified text was scrubbed... Name: not available Url: https://stat.ethz.ch/pipermail/r-help/attachments/20060713/914da1e5/attachment.pl

'skewing' a normal random variable
Ashraf Chaudhary · Apr 3, 2005 · r-help

Hi All; The following question is directed more to statisticians on the list. Suppose I have a normal random variable. Is there a transformation that I can apply so that the new variable is slightly positively skewed. I greatly appreciate...

Generating a binomial random variable correlated with a normal random variable
Ashraf Chaudhary · Apr 3, 2005 · r-help

Hi All: I would like to generate a binomial random variable that correlates with a normal random variables with a specified correlation. Off course, the correlation coefficient would not be same at each run because of randomness. I greatly appreciate...

Generating a binomial random variable correlated with a normal random variable
Ashraf Chaudhary · Apr 15, 2005 · r-help

Hi, I am posting this problem again (with some additional detail) as I am stuck and could not get it resolved as yet. I tried to look up in alternative sources but with no success. Here it is: I need...

Help with clogit in survival - conditional logistic regression
Ashraf Chaudhary · Jul 28, 2006 · r-help

Dear All: I have been struggling to run the conditional logistic regression on a dataset. I am using clogit function in survival package. Here is how the data is generated. I tried to shorted the data by using the second...

Confidence Intervals from Bootstrap Replications
Ashraf Chaudhary · Dec 19, 2004 · r-help

Thank you for the response. The suggestions are helpful. I would look into the capabilities of the boot function. The solution in 8.3 is the last resort that I was trying to avoid. Regards, Ashraf -----Original Message----- From: Berton...

Generating a binomial random variable correlated with a
Ashraf Chaudhary · Apr 16, 2005 · r-help

Ted: Thank you for your help. All I want is a binomial random variable that is correlated with a normal random variable with specified correlation. By linear I mean the ordinary Pearson correlation. I tried the following two methods, in...

Can't find what you're looking for? Try searching with Google .