Hello,
I need to determine if the lab collection method for each subject in my data set was collected consistently throughout the study.
To Illustrate, the variables I will use are "Lab Location" and "Subject ID." Each subject has multiple observations in the data set.
I need to determine if the value of "Lab Location" (Character) is the same for all observations per Subject ID. if not, I need to output to view the result.
Example Data:
SubjectID LabLocation Visit
Subj123 Lab 1
Subj123 Lab 2
Subj123 Point of Care 3
Can you recommend the best method for doing this?
Thank you!
proc sql;
create table not_same as
select *
from have
group by subjectID
having not (max(labLocation)=Min(labLocation));
quit;
@mglogan wrote:
Hello,
I need to determine if the lab collection method for each subject in my data set was collected consistently throughout the study.
To Illustrate, the variables I will use are "Lab Location" and "Subject ID." Each subject has multiple observations in the data set.
I need to determine if the value of "Lab Location" (Character) is the same for all observations per Subject ID. if not, I need to output to view the result.
Example Data:
SubjectID LabLocation Visit
Subj123 Lab 1
Subj123 Lab 2
Subj123 Point of Care 3
Can you recommend the best method for doing this?
Thank you!
proc sql;
create table not_same as
select *
from have
group by subjectID
having not (max(labLocation)=Min(labLocation));
quit;
@mglogan wrote:
Hello,
I need to determine if the lab collection method for each subject in my data set was collected consistently throughout the study.
To Illustrate, the variables I will use are "Lab Location" and "Subject ID." Each subject has multiple observations in the data set.
I need to determine if the value of "Lab Location" (Character) is the same for all observations per Subject ID. if not, I need to output to view the result.
Example Data:
SubjectID LabLocation Visit
Subj123 Lab 1
Subj123 Lab 2
Subj123 Point of Care 3
Can you recommend the best method for doing this?
Thank you!
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