I want to find the relative risk and risk difference and their corresponding 95% CIs to compare adverse events in a treatment group compared to a placebo group.  What 95% CI can handle zero counts using PROC FREQ (or a different procedure)? I was going to use Wald and Agresti-Caffo, respectively, but it looks like Wald can't handle zero counts and since we have a small sample size (n<10), perhaps that's not the best option in general... ... View more

With the 2024.03 release of SAS Viya the sas-viya command-line interface is available for download in a container image. This new feature will be handy for automating SAS Viya administrative tasks. This is a topic I have addressed in the past where we built our own container image containing the sas-viya CLI. In this post, I will provide an overview of the new SAS-delivered sas-viya-cli container image and review how you can install it and use it to perform SAS Viya administration tasks. ... View more

Hello SAS community,   I have a dataset with a variable number_images with values 1 or 2 which indicate whether an image was read for a bunch of variable (n=110) at T0 or/and T2 this is what I get from proc freq number_images nmissT0 nmissT2 1 0 110 1 1 110 1 2 110 1 3 110 1 4 110 1 5 110 1 6 110 1 7 110 1 8 110 1 9 110 1 10 110 1 12 110 1 14 110 1 15 110 1 18 110 1 31 110 1 93 110 1 110 0 1 110 1 1 110 2 1 110 6 1 110 10 1 110 12 1 110 13 1 110 14 2 0 0 If number_images=1, the image could have been read at either of the timepoints. I want to keep number_images =1 but be able to distinguish those with readings at T1 or T2 only if nmissT0=110 then the images was only read at T2 if nmissT2=110 then the images was only read at T0 if nmiss is <110, then the image was read at least for some features at one timepoint- not concerned with that part for this question   I would like to update number_images to have something like this but I know this won't work proc format; value n_imagf 1="1: V0 readings only" 1="1: V2 readings only" 2="2: V0, V2 readings" What can I do instead so number of images still shows 1 and is numeric? if number_images=1 and nmissT0=110 then number_images=1??   Can anyone help? Thanks, Maggie   ... View more

I am using the SAS elarning courses in my institution course, and assigning as homework the Virtual lab-based demos and/or activities.  I want the students to be able to save their final product work of an activity/demo and upload it in the dropbox of the brightspace D2L LMS. Are there options that enable the user to do so?  if so, what is the best/easiest option?  Thanks. Kaddour ... View more

How can I change this macro to create all the variables in one data set? I want  First_ADD and Second_ADD in the out flag data set. I want to do this for multiple varibles using the macro but it keeps overwriting itself and keeping the last flag that was created by the macro. Thank you!   %MACRO FLAG(VAR1,VAR2,FLAGNAME); DATA FLAG; SET RULE1; &FLAGNAME=0; DO _N_=1 to countw(&VAR1,',') while(&FLAGNAME=0); word=scan(&VAR1,_N_,','); if word=' ' then continue; if indexw(trim(&VAR2),trim(word),',') then &FLAGNAME=1; end; drop word; run; %MEND FLAG; %FLAG(Addresses1,Addresses2,First_ADD); %FLAG(Addresses1,Addresses3,Second_ADD); ... View more