sasanalysis's articles:

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Help Cox Models 0 252 (5/5/2010 1:07:19 AM) comp.soft-sys.sas Hi Everyone, I want to run cox proportional hazard models using a longitudinal dataset. I want sas to recognize subjects that had events at baseline and that had only baseline visits in the statement and ... sas

help with proc phreg where statment 1 538 (5/2/2010 9:27:47 PM) comp.soft-sys.sas Hi Everyone, I want to run cox proportional hazard models using a longitudinal dataset. I want sas to recognize subjects that had events at baseline and that had only baseline visits in the statement and ... sas

if last statement with missing 4 160 (4/20/2010 4:02:25 PM) comp.soft-sys.sas Hi all, I have data that looks like this: Id visit outcome 1 1 0 1 2 0 1 3 0 1 4 1 1 5 . 1 6 ... sas

survival analysis: setting up longitudinal data question 0 425 (4/12/2010 11:45:07 PM) comp.soft-sys.sas Hi All, I have a longitudinal dataset and would like to make sure if I am setting it correctly to run proc lifetests and phreg for each subject.. This is how my dataset looks: id outcome ... sas

By statement to select cases 3 100 (4/7/2010 9:12:28 PM) comp.soft-sys.sas Hi All, I have a multiple observation dataset. I would like to create variables with if case1 only, if case2 alone, if case1 and case2. The data looks as follows: Subject Case 1 Case2 1 ... sas

selecting worse grade in sas 0 174 (4/7/2010 3:15:53 PM) comp.soft-sys.sas Hi All, If I have a bunch of grades for students over terms. How do I select the worse grade. Here is how the data looks: Student Grade 1 Grade 2 X 50 ... sas

how to filter observations 5 315 (3/23/2010 2:51:04 AM) comp.soft-sys.sas Hi All, I am having difficulty in figuring out how to filter observations in sas. I need to look at observations while excluding others in the same row...As such, I cannot delete the row...Is there any com... sas

deleting subjects 1 163 (3/17/2010 5:17:10 PM) comp.soft-sys.sas Hi, In a repeated measure dataset, how can I deleted unwanted subjects based on a whether they had a value of 'N' in either base1 or base2. For example, below I only need to look at ID 1 since both 2 and 3... sas

how to retain scores 3 100 (3/16/2010 9:10:26 PM) comp.soft-sys.sas Hi All, I have scores for each subject at various time points. In certain visits, scores were missing but in others recorded. How can I input scores where missing based on the previous score. and when a n... sas

Proc Freq tables multiple observations 0 24 (3/14/2010 7:21:06 PM) comp.soft-sys.sas Hi, How do I get counts using proc freq with a dataset that has many observations per ID? this is how the data looks and this is the code I am using: proc freq data=one; Table event*SEX; run; ID event ... sas