peterflomconsulting's articles:

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Re: Monte Carlo simulation in SAS - extreme outliers 0 35 (3/9/2010 5:07:11 PM) comp.soft-sys.sas Church wrote > >Hi, > >I am running Monte Carlo simulation in SAS within the procedure proc >model. >While the simulations look reasonable overall, I see some extreme >outliers in the tails of the distribution... peterflomconsulting

Re: removing more than two variables from regression model 0 40 (3/9/2010 4:52:18 PM) comp.soft-sys.sas Sidhu Khanna wrote >> > Could you please suggest me the syntax for the " WHERE ne " if I need >> > to remove more than two varaibles. >> >> > The code :- >> >> > where Review ne 50 ,Review ne 40 AND >> > ... peterflomconsulting

Re: SGPLOT question 0 47 (3/3/2010 2:54:04 PM) comp.soft-sys.sas I wrote >I am waiting for a reply from Tech Support on this one, and thought someone here might know.... > >If I run > >proc sgplot data=pred2; > dot group2/ response=btestimate; >run; >>>>> > >I get a dotplot... peterflomconsulting

Re: Distribution #4 0 25 (2/24/2010 11:47:12 PM) comp.soft-sys.sas >> >Hello All: >> > >> >I have the following data and I would like to know if the frequencies >> >are evenly distributed across the plots. How I can prove that the >> >frequency of plots are significantly diffe... peterflomconsulting

Re: Multicollinearity problem #9 0 29 (2/24/2010 10:25:44 PM) comp.soft-sys.sas Hayden You keep mentioning SPSS and AMOS, but this is SAS-L..... not a list about either of those programs. The determinant is defined e.g. at Wikipedia http://en.wikipedia.org/wiki/Determinant You can get ... peterflomconsulting

Re: Multicollinearity problem #6 0 45 (2/24/2010 4:38:36 PM) comp.soft-sys.sas Hayden Salter wrote > >Should I instead combine the scores of the highly correlated variable? There are various solutions to collinearity problems, and combining the variables is one possibility - either by... peterflomconsulting

Re: least squares estimation - highly correlated covariates 0 22 (2/24/2010 11:31:54 AM) comp.soft-sys.sas Y Zhu wrote >Hi, > >Can someone suggest how to estimate regression coefficients using least >squares approach when the covariates are highly correlated but >fixed(nonstochastic). Also, how to estimate when the... peterflomconsulting

Re: Multicollinearity problem #4 0 24 (2/23/2010 10:47:50 PM) comp.soft-sys.sas Hayden Salter wrote> >Hi Peter, > >Forgot to ask you something else with regards to your response. Is >the /COLLIN option in PROC REG an AMOS or SPSS macro? It's not a macro at all. Just a SAS option Peter ... peterflomconsulting

Re: Ordinal logistic regression #2 0 53 (2/23/2010 5:14:56 PM) comp.soft-sys.sas Hi Bryce See my paper http://www.nesug.org/Proceedings/nesug05/an/an2.pdf in particular, you want something like this output pred = predicted predprobs = i c; in your code. predprobs = i will give you pre... peterflomconsulting

Re: Multicollinearity problem #2 2 30 (2/23/2010 2:24:04 PM) comp.soft-sys.sas Hayden Salter wrote >Hi, > >I have 2 questions that are related to each other: > >1. I have a set of measurement scales that are highly correlated with >each other. I have tried to test the goodness-of-fit of... peterflomconsulting

peterflomconsulting's replies:

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Calculating a New Variable based on existing variables in a Datafile 5 34 (10/27/2008 10:23:42 PM) comp.soft-sys.sas Hi all, I have a datafile with 100 variables, lag1-lag100. I have to calculate a new variable and assign a value of 1, if the value of all 100 variables is 1; else 0. Is there a simpler way, instead of using "... akshaya.nathilvar (396)

Aggregate and individual-level data analysis 6 34 (12/19/2008 7:12:18 PM) comp.soft-sys.sas Dear SAS-Lers, Yet another question from me. Suppose I have 2 datasets: 1. Dataset1--Contains individual-level data on who bought food at a concession stand during a football game 2. Dataset2--Contai... rsoelaeman (23)

Controlling for Baseline Scores in Proc Mixed--Necessary? 2 28 (1/16/2009 1:01:17 AM) comp.soft-sys.sas This is my 3rd attempt to post this. I'm really sorry if three unique posts appear... Hi there- I have a question about using proc mixed in a clinical trial design. Let's say you have: 1. Two Conditions (Ex... ryan.andrew.black (159)

Description of Chi-Square and Fisher's Exact tests? 1 40 (3/12/2009 6:51:13 PM) comp.soft-sys.sas Would anybody have a nice short description of 1. Pearson chi-square test 2. Fisher's Exact test Suitable to go into a research proposal? -Mary ... mlhoward (1825)

Bias problem 1 24 (3/20/2009 3:57:05 PM) comp.soft-sys.sas Dear all, I have a statistical experimental problem. Suppose I am credit risk manager. I reduce the customers' credit line when there credit risk is very high, for example: when a cusomter's FICO score is lower... he.terry (31)

ANCOVA versus Multilevel Random Coefficient Models/HLM/mixed 1 45 (3/26/2009 6:28:48 PM) comp.soft-sys.sas We conducted a randomized clinical trial with 4 treatment groups (3 active treatments and placebo) and baseline and 1-year. Our primary interest was in examining differences in linear rates of change between ea... lhr1807 (3)

Complex transpose problem (I think) 1 19 (6/15/2009 1:48:00 PM) comp.soft-sys.sas Hello again People do give data in odd formats, don't they? This time I have the following. An Excel data set on EEG in 5 subjects (it will go up), but about 200 columns. Variables are name, age, sex, and a... peterflomconsulting (1176)

contrinious variable with GLM, or, count variable with Poisson 2 22 (9/10/2009 11:52:56 PM) comp.soft-sys.sas Should I treat the following outcomes as continuous variables linear regression modelling, or treat it as count variables using Poisson model, please? outcome1 = sick-days/PersonYear outcome2 = Amount-of-doll... helen.guiyun.li (4)

Agresti-Coull confidence intervals 4 43 (9/16/2009 8:52:33 PM) comp.soft-sys.sas Hello Group, Does anyone have SAS code to compute Agresti-Coull binomial proportion confidence intervals they'd be willing to share? Ref: Agresti, Alan, and Coull, Brent A. Approximate is better than 'exact' ... jsuebersax (61)

A SAS Knowledge Exchange 1 43 (10/19/2009 3:00:17 AM) comp.soft-sys.sas http://www.runsubmit.com is a place to ask and answer questions about programming and using the SAS software system. Run Submit is built on the same engine and technology that drives www.stackoverflow.com (one... jay.l.stevens (15)