von-hippel.1's articles:

Items(28) /3 Next >> Last >|

Comma-delimiting list 5 44 (5/11/2006 8:17:19 PM) comp.soft-sys.sas I'd like to convert a raw list of strings like Frankie Johnnie to a list of quoted strings delimited by commas, like 'Frankie', 'Johnnie' suitable for inclusion in a statement like this: IF name IN ('F... von

Running minimum 2 28 (4/30/2006 9:33:25 PM) comp.soft-sys.sas I'd like to track the minimum of prior cases. For case 3 this would be the minimum of cases 1-2; for case 4, the minimum of cases 1-3, etc. I have an unsuccessful solution using the notorious lag function (bel... von

precision of datetime values 5 54 (4/19/2006 7:31:54 PM) comp.soft-sys.sas I am working with datetime values that are precise to the millionth of a second -- e.g., data datetimes; datetime = '17OCT1991:14:45:32.123456'DT; put datetime=; run; I'm a little confused about how... von

Distinguishing business names from personal names 1 30 (2/27/2006 7:49:55 PM) comp.soft-sys.sas Has anyone developed code for distinguishing business names from personal names? ... von

Mantissa function 7 72 (2/15/2006 5:15:09 PM) comp.soft-sys.sas Does anyone know of a simple function to extract the mantissa from a SAS numeric variable? e.g., .9978 9.978 99.978 would all be converted to .9978. Thanks! ... von

Cluster sampling using PROC SURVEYSELECT 1 175 (2/6/2006 5:12:31 PM) comp.soft-sys.sas How easy is it to construct a cluster sample using PROC SURVEYSELECT? I have repeated-measures data in a file where each line represents a single observation, with a variable indicating the person unit to whic... von

IML: comparing two matrices by cell values 0 35 (10/31/2005 7:53:18 PM) comp.soft-sys.sas I am calculating a matrix C from the values in matrices A and B. In each matrix, I use the first two columns as a kind of index. When I am looking at a row of C, is there a convenient way to find the rows of A... von

IML: vec and vech 0 32 (9/12/2005 6:48:21 PM) comp.soft-sys.sas I'm looking for implementations of the vec and vech operators in IML: If A = {1 2, 3 4}; then vec (A) = {1, 3, 2, 4} vech (A) = {1, 3, 4} T... von

Error from NLMIXED 0 53 (8/25/2005 8:06:33 PM) comp.soft-sys.sas Running NLMIXED, I get the following error message: "NOTE: Gaussian integration failed during iteration 1 for [a particular SUBJECT value]" Two questions: (1) Does anyone know what this means, or how to respo... von

indeterminate likelihood? #2 0 37 (8/25/2005 7:35:43 PM) comp.soft-sys.sas In using NLMIXED to fit a random-parameters logistic regression model, I get the following message: "Indeterminate likelihood encountered for observation 166 during iteration 0." What does that mean? (I looke... von

von-hippel.1's replies:

Items(7) /1

Re: ODS error in IML 1 31 (1/27/2005 6:54:18 PM) comp.soft-sys.sas On Thu, 27 Jan 2005 10:15:18 -0800, Paul T. von Hippel wrote: >An IML macro creates a matrix called OPUT, which I'd like to save as an >data file called my estimates. I insert the following code into the >mac... chang_y_chung (1988)

PROC IML: BY statement 2 33 (2/19/2005 5:07:52 AM) comp.soft-sys.sas The BY statement in, for example, PROC REG is very fast -- much faster than calling PROC REG once for every value of the BY variable. I am writing a modified regression procedure in PROC REG. What is the best ... von-hippel.1 (37)

Re: MIANALYZE and Proc Mixed contrasts 1 86 (8/25/2005 9:58:23 PM) comp.soft-sys.sas sean.hurley@GMAIL.COM wrote: >Does anybody know how to get MIANALYZE to analyze estimates for >contrasts generated in Proc Mixed? I have several contrasts (expressed >in "Estimate" statements), and have output ... davidlcassell (5579)

Multivariate Normal Sample 2 40 (9/12/2005 9:43:48 PM) comp.soft-sys.sas Hi, I am interested in generating a multivariate normal sample (5 samples) whose errors I wanted to be correlated. Is there any function in SAS or source that helps with this. Thanks for any help in advance... smart00712345 (3)

Re: IML in column major format 1 37 (9/26/2005 8:43:43 PM) comp.soft-sys.sas ptv-sas@SOCIOLOGY.OSU.EDU wrote: >When converting matrices to vectors, IML uses a row-major format. > >I wish to use formulas that assume a column-major format. Why? In math and stat, row-major is traditional... davidlcassell (5579)

Running minimum 2 28 (4/30/2006 9:33:25 PM) comp.soft-sys.sas I'd like to track the minimum of prior cases. For case 3 this would be the minimum of cases 1-2; for case 4, the minimum of cases 1-3, etc. I have an unsuccessful solution using the notorious lag function (bel... von-hippel.1 (37)

Comma-delimiting list 5 44 (5/11/2006 8:17:19 PM) comp.soft-sys.sas I'd like to convert a raw list of strings like Frankie Johnnie to a list of quoted strings delimited by commas, like 'Frankie', 'Johnnie' suitable for inclusion in a statement like this: IF name IN ('F... von-hippel.1 (37)