crisgugiu's articles:

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Graphing vector functions in 3D 2 491 (1/10/2010 6:56:15 PM) comp.soft-sys.sas Hi all. I'm trying to figure out a way of graphing some of the vector function that James Stewart gives as exercises in his calculus textbook, "Calculus: Early Transedentals". For example, on page 852 (5th e... crisgugiu

Re: Reading in a SAS dataset #3 0 22 (1/4/2010 9:45:42 PM) comp.soft-sys.sas That did the trick. Thanks!!!=0A=0ACristian=0A=0A=0A=0A=0A_________________= _______________=0AFrom: Yu Zhang =0ATo: P. Cristian Gu= giu =0ACc: SAS-L@listserv.uga.edu=0ASent: Mon, January= 4, 2010 1:24:47 PM=0... crisgugiu

Reading in a SAS dataset 3 209 (1/4/2010 6:20:46 PM) comp.soft-sys.sas Hi all, I am faced with what should be a pretty simple task but the solution escapes me at the moment. I have a SAS file with the following 4 variables: ID Rater1 Rater2 Rater3. I would like to conduct a m... crisgugiu

Re: Reporting results from Proc Mixed #2 0 26 (2/24/2009 3:41:19 AM) comp.soft-sys.sas I am thinking of including the following table. Can someone let me know if this seems complete or whether I need to include additional information. Thanks, Cristian Table 2: Mixed Analysis of Variance Source... crisgugiu

Reporting results from Proc Mixed 0 29 (2/23/2009 7:08:03 PM) comp.soft-sys.sas Hi all. I've completed a mixed effects analysis using Proc Mixed and written the results up. I would like to include a table with the relevant statistics that I should include in a publishable article (APA styl... crisgugiu

Re: Multiple imputations of demographic variables #2 1 19 (2/10/2009 7:46:58 PM) comp.soft-sys.sas Okay. I figured it out. It appears to require a two stage process. In the first stage you impute a monotonic dataset using the MCMC method. In the second stage, you use the monotonic dataset to impute values fo... crisgugiu

Multiple imputations of demographic variables 0 21 (2/9/2009 4:18:53 PM) comp.soft-sys.sas Hi all, I was wondering if anyone has any experience with using Proc MI to impute demographic (i.e., nominal) variables. I tried to impute the data using MCMC and the EM algorithm but the results don't seem ri... crisgugiu

Back transforming a factor loading matrix to a correlation or 0 20 (2/4/2009 8:52:16 PM) comp.soft-sys.sas Hi all, I was wondering if anyone knows of a way to back transform a factor loading matrix (with say, varimax rotation) to a correlation or covariance matrix. Alternatively, can one input the pattern matrix in... crisgugiu

Re: Matched-Group Design #5 0 33 (1/22/2009 10:47:31 PM) comp.soft-sys.sas Okay, I just generated 5000 bootstrap samples and analyzed them with each of the three proposed methods. Some interesting results. All three methods failed to reject H0: treatment group has an impact. The p-val... crisgugiu

Re: Matched-Group Design #4 0 19 (1/22/2009 7:29:07 PM) comp.soft-sys.sas Robin, Thanks for the suggestions. I'm curious to know if the three different methods will all converge upon the same conclusion. I was planning on bootstraping Proc GLM anyway, so I will include the two solut... crisgugiu

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Reading in a SAS dataset 3 209 (1/4/2010 6:20:46 PM) comp.soft-sys.sas Hi all, I am faced with what should be a pretty simple task but the solution escapes me at the moment. I have a SAS file with the following 4 variables: ID Rater1 Rater2 Rater3. I would like to conduct a m... crisgugiu (90)