Proc can be used with wider scope and the results can be sent to a different dataset. What Is The Different Between Functions And Procs That Calculate The Same Simple Descriptive Statistics? How Would You Create A Data Set With 1 Observation And 30 Variables From A Data Set With 30 Observations And 1 Variable?Ģ0. Most SAS statistical procedures exclude observations with any missing variable values from an analysis.ġ9. The result of any operation with missing value will result in missing value. What Are Some Problems You Might Encounter In Processing Missing Values? In Data Steps? Arithmetic? Comparisons? Functions? Classifying Data? What Versions Of Sas Have You Used (on Which Platforms)? What Areas Of Sas Are You Most Interested In?ġ7. How Do You Debug And Test Your Sas Programs?įirst thing is look into Log for errors or warnings or NOTE in some cases or use the debugger in SAS data step.ġ6. What Is A Method For Assigning First.var And Last.var To The By Groupvariable On Unsorted Data? What Is The Difference Between Functions And Procs That Calculate The Same Simple Descriptive Statistics?įunctions can be used inside the data step and on the same data set but with proc’s you can create a new data set to output the results.ġ4. of the variables later labels all that kind of info inside the dataset and you can look at that info using the proc contents procedure.ġ3. SAS is considered self documenting because during the compilation time it creates and stores all the information about the data set like the time and date of the data set creation later No. Following the data step then you can avoid the usage of the run statement.ġ2. When the SAS editor looks at Run it starts compiling the data or proc step, if you have more than one data step or proc step or if you have a proc step. Does Sas ‘translate’ (compile) Or Does It ‘interpret’? Approximately What Date Is Represented By The Sas Date Value Of 730?ġ0. How Do You Control The Number Of Observations And/or Variables Read Or Written?ĩ. Why Is A Stop Statement Needed For The Point= Option On A Set Statement?īecause POINT= reads only the specified observations, SAS cannot detect an end-of-file condition as it would if the file were being read sequentially.Ĩ.
It implies that automatic conversion took place to make character functions possible.ħ. What Do The Sas Log Messages “numeric Values Have Been Converted To Character” Mean? What Are The Implications? The –ERROR- variable has a value of 1 if there is an error in the data for that observation and 0 if it is not.Ħ. What Is The Effect Of The Options Statement Errors=1? What Is The One Statement To Set The Criteria Of Data That Can Be Coded In Any Step?ĥ. I think Select statements are used when you are using one condition to compare with several conditions like.Ĥ.
#SAS INTERVIEW QUESTIONS ANSWERS CODE#
Under What Circumstances Would You Code A Select Construct Instead Of If Statements? Sampling method using OBS option or subsetting, commenting the Lines, Use Data Null.ģ. What Are Some Good Sas Programming Practices For Processing Very Large Data Sets? Describe 5 Ways To Do A “table Lookup” In Sas?Ģ. It can run on any operating system (Linux, Windows, etc) as it is platform-independent.ġ. SAS’s large number of components customization, as well as extensive programming approach feature together, performs Data Analysis and Data transformation tasks.
#SAS INTERVIEW QUESTIONS ANSWERS SOFTWARE#
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