If the RSUBMIT is asynchronous, then you can use the RGET and RDISPLAY commands and statements to retrieve and view the results. If the RSUBMIT is synchronous, then all results and output are displayed in your local SAS session. Even though the statements execute in the remote environment, all results and output are available to your local SAS session log and output as they would be if you executed the program in the local SAS session. The RSUBMIT command differs from the standard SUBMIT command because statements execute on the remote host. The RSUBMIT command and the RSUBMIT statement cause SAS programming statements that are entered in the local environment to execute on a remote SAS session. It even follows the macro execution pattern. To be more specific, MLOGIC option identifies and displays the macro logic.
#Clinical sas interview questions code
Often we use %DO loops and or %IF-%THEN-%ELSE statements inside the macro code and LOGIC option will display how the macro variable resolved each time in the LOG file as TRUE or FALSE. This option is very helpful when we deal with nested macros (Macro inside another macro). MPRINT option prints one statement per line along with resolved macro code. Using the MPRINT option displays all the SAS statements of the resolved macro code.
What is difference between MPRINT and MLOGIC?
Seems to improve performance if you are familiarīriefly describe 5 ways to do a "table lookup" in SAS I/OĪnd CPU time can be reduced by the proper use ifĪppropriate use of the WHERE clause. To program design will save a lot of headaches. Programs with the proper organization and flowĪvoiding wasted steps. The use of FORMAT statements rather than the IF. Needed and setting the length on all variables exceptįor calculated fields. It is good to get in the habit of only keeping what is The proper use of KEEPĪnd DROP statements can also save much space. Seen that one of the easiest techniques is the use of Important, and sometimes necessary to write SAS What are some good SAS programming practices for processing very large data sets?Īlthough computer storage is now less expensiveĪnd more plentiful it is still a valuable resource. What are some problems you might encounter in processing missing values? *In Data steps? Arithmetic? Comparisons? Functions? Classifying data? Then used Do loop Proc Transpose with VAR statement. If you were told to create many records from one record, show how you would do this using arrays and with PROC TRANSPOSE?ĭeclare array for number of variables in the record and How do you debug and test your SAS programs?
Sort order treats missing as second smallest followed by underscore.Ĭharacter as Blank or “ and Numeric as (dot) Missing values will be assigned as missing in Assignment statement. How does SAS handle missing values in: assignment statements, functions, a merge, an update, sort order, formats, PROCs? Those values are then compared to the endpoint values and the efficacy and safety of a new therapeutic compound is framed on its basis. What is Baseline? (Clinical SAS interview)īaseline is the value of any laboratory test or otherwise which is taken when the patient is taken in in the clinical trial. Please tell me the best institute in Delhi on affordable price?Ĭompany Name - Shahnaz Hussain Group of Companies
#Clinical sas interview questions how to
HOW TO GENERATE PAGE NO'S IN LISTINGS LIKE The “X” indicates the current page number, and the “Y” is the total number of pages. Page numbers in X of Y format, such as “ of 280”, “ of 30”, are a common feature of ODS RTF How can we read the data from two datasets in to one data set as one observation from one data set and two observations from another dataset repeatedly. What is the difference between crossover study,parallel study?
0 kommentar(er)
