Displaying 5 results from an estimated 5 matches for "ldband".
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ldbadd
2003 May 16
1
Question on ldBands function in Hmisc package by Harrell
Has anyone tried to download Hmisc and used ldBands function for calculating
Lan-Demets group sequential boundaries? The write-up in F.Harrell's website
indicates that, besides downloading the package Hmisc, one needs to copy the
progra ld98 from the University of Wisconsin website. As suggested, I did
this but received another error message...
2008 Oct 13
0
ldBands (Hmisc)
All,
I'm getting the same error message as that discussed in a previous post (Feb
3, 2006). The reply to that post was to insure that the ld98 program was in
the system path (as also suggested in the help on ldBands). I have done
this but this does not change the result. Any advice much appreciated.
David
> sessionInfo()
R version 2.7.2 (2008-08-25)
i386-pc-mingw32
locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
States.1252;LC_MONETARY=English_United
States.1252;LC_NUMERIC=C;L...
2006 Feb 02
1
Help with ldBands(Hmisc)
Hello My Fellow Users,
Under the details it is given that the ld98 executable should be in a subdirectory that is in the system. Should ld98.exe be included under Hmisc (where it is stored) or under the lib subdirectory within Hmisc? I am getting the following error message: Error in (head + 1):length(w) : NA/NaN argument. Does this mean that I didn't store the ld98.exe in the right place
2003 Jul 10
1
group sequential and adaptive designs
Hello R users,
I am looking for R (or S) code related to group sequential or adaptive
designs for clinical trials. (The most prominent examples are the designs of
Pocock or O'Brien/Fleming, the alpha-spending function approach, or Fisher's
combination test and the inverse normal method.) I am particularly interested in
the calculation of the critical boundaries, the handling of spending
2007 Jun 24
2
matlab/gauss code in R
...Jim Lemon)
> 7. Re: Adding exponents (superscript format) to a plot (John Kane)
> 8. Re: using lme on multiple datasets in one shot (Douglas Bates)
> 9. Re: abline plots at wrong abscissae after boxplot (S Ellison)
> 10. Boxplot issues (S Ellison)
> 11. Re: help on the use of ldBand (Frank E Harrell Jr)
> 12. Re: multiple return (ONKELINX, Thierry)
> 13. Re: extract index during execution of sapply (Martin Morgan)
> 14. vectorize a function (Robin Hankin)
> 15. Re: Tools For Preparing Data For Analysis (Kevin E. Thorpe)
> 16. Re: Data consistency checks in...