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knagarkar · ‎09-27-2018

Hey Mar1ene, That was quite elaborate 🙂 Thank you. Also I would want to understand few statements in the below code: 1) if _N_ EQ (equal to) 1 then do; (What is _N_, also does it mean that this part will run only once) 2) What if I don't assign '0' to all these variables: retain SID 0 strata1 0 plaque1 0 plaque2 0 trt 0; 3)

knagarkar · ‎09-27-2018

Thanks Reeza for your response, I would probably go for transpose only but just wanted to understand few new statement's (for me) in this code.

knagarkar · ‎09-27-2018

data vite_b (keep=SID strata1 plaque1 plaque2 trt); set vite nobs=nobs; retain SID 0 strata1 0 plaque1 0 plaque2 0 trt 0; if _N_ EQ 1 then do; sid = ID; strata1 = ID; trt = treatment; end; if SID NE ID then do; output; SID = ID; strata1 = strata; trt = treatment; end; if visit = 0 then plaque1= plaque; if visit = 2 then plaque2=plaque; if _N_ = nobs then output; run; I am new learner of SAS and I encountered issue understanding this chunk of code, if anyone of you could please explain each line of the code as in what's its doing then it will be of very help. Also whats the use of certain statement in this code (nobs, _N_) Again Thanks for your time in advance.

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Date Last Visited	‎09-28-2018 01:09 PM

Re: Need explaination for this chunk of code

Re: Need explaination for this chunk of code

Need explaination for this chunk of code

Re: Need explaination for this chunk of code

Re: Need explaination for this chunk of code

Need explaination for this chunk of code