Hello everyone,   I have survey data of approximately 5000 participants and I am currently looking to model the outcome of a dichotomized response variable to a predictor. Our question is if there is a trend of participants being more likely to be in the 1 level of the response variable as we move from 4 to 1 in the ordinal response predictor.    The dichotomized response has levels 1 and 0 while the predictor is an ordinal survey response with levels 1 - "Yes - completely", 2 - "Yes - mostly",  3 - "Yes - somewhat", and 4 - "No".  I am currently wondering how to structure my proc logistic code and also weighing the use of proc logistic vs. proc surveylogistic. I do not have survey weights, so it seems that proc surveylogistic would not be useful in comparison to proc logisitic.    Here is my code so far:    proc logistic data = import plots=all; class outcome q1 / param=ordinal; model outcome = q1; run; I chose ordinal for the param= statement however I am not sure about that, though changing the param= option does not change the model fit statistics.    I will continue to read documentation about proc logistic to see what other options might suit, but if there are any suggestions please let me know. Thank you! ... View more

Hi Everyone,   I have some data I'm trying to plot but I'm at a crossroads as to how to. Here is a sample of it: data sample; input ID time mean test_q1 test_q2 test_q3 group_q1 $ group_q2 $ group_q3 $; datalines; 1 1 5.44 0 0 1 A A A 1 2 3.59 0 0 1 A A A 1 3 2.33 0 0 1 A A A 2 1 1.45 1 1 1 A A A 2 2 5.66 1 1 1 A A A 2 3 7.65 1 1 1 A A A 3 1 2.34 2 1 1 A A A 3 2 4.54 2 1 1 A A A 3 3 3.76 2 1 1 A A A 4 1 8.76 3 2 2 B B B 4 2 9.45 3 2 2 B B B 4 3 2.34 3 2 2 B B B 5 1 5.55 4 4 4 B B B 5 2 2.89 4 4 4 B B B 5 3 7.44 4 4 4 B B B ; run; As you can see, it is repeated measures data. I am trying to do proc sgplot where x = time and y = mean, and generate a graph for each question based on the grouping variable for each question. Since it is repeated measures I need to specify it is by each ID, but I also want to group using the grouping variables. I'm not sure how to do about this as I don't think proc sgplot allows multiple grouping variables.    Any idea on how to go about this? Any help is appreciated, thanks!  ... View more

Hi Everyone,   I'm currently taking a SAS course that goes over topics such as decision trees and ensemble methods. The demo's use SAS Enterprise Miner which I do not have access to. I was wondering how/if I could perform these actions within SAS Studio. For decision trees I have found using PROC HSPLIT works well, but have not found anything for ensemble methods. Any help would be appreciated, thanks!   ... View more

Hi Everyone,   I'm currently using SAS Studio 9.4 and am part of a REDCap project with an API Playground. I'd like to use the cURL code provided by REDCap to execute the API in SAS and am wondering how I can do this so that I may analyze the data within the program. How can I go about doing this?   Thank you!   ... View more