Interested to Buy Any Domain ? << Click Here >> for more details...
1.What is the difference between _NULL_ , _ALL_, and _N_?
2.What are the uses of _NULL_ using in Data Steps? Can we
_NULL_ in Proc Steps also?
3.How do call the macro variable in Data Steps?
4.How to construct Pivot tables in Excel Using SAS?
- 3 Answers
- 10313 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / chandrakanth
_null_ will act like any other data step but it would not create any data set.
_all_ will select all the variables in a particular data set.
_n_ is the automatic variable generated by SAS which counts the number of loops SAS moved to the top of data set
(but some people say it is total number of observations which is not always true)
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / aravind9882
_null_ is used in datstep not to create a dataset.
_all_ means all..foe instance all variables like char and
numeric...if u use in ods statement like ods _all_ close
closes the all d destinations u have opened instead of
writing each...
u can cal a macro bariable using '&' lke call symget...
| Is This Answer Correct ? | 1 Yes | 3 No |
Answer / pnprasad
1. _NULL_ is not create Out put DataSet, it opens the file
to write the dataset. _ALL_ for display contents in the
library & used in cose the files in ODS and _N_ for search
for Null characters.
| Is This Answer Correct ? | 0 Yes | 19 No |
how does sas handle missing values in functions? : Sas programming
1.What is the difference between _NULL_ , _ALL_, and _N_? 2.What are the uses of _NULL_ using in Data Steps? Can we _NULL_ in Proc Steps also? 3.How do call the macro variable in Data Steps? 4.How to construct Pivot tables in Excel Using SAS?
How do I CREATE an external dataset with sas code? I would like to create within a sascode a non-exsistent textfile on the host. So I am not forced to create the file befor filling it.
what is conditional processing?
what is SAS/Graph?
what is the prob plot in clinical domain
how many types of prompts are there? : Sas-bi
Do you need to compute new variables? If so,should you do this before you execute the report-writing procedure?
If you need the value of a variable rather than the variable itself what would you use to load the value to a macro variable? : sas-macro
Give some examples where proc report’s defaults are same as proc print’s defaults?
if we dont want to print output what we have to do..???give syntax..???
8 Answers Accenture, GSK GlaxoSmithKline,
What is the pound sign used for in the data_null_ ?
Teradata 
