Interested to Buy Any Domain ? << Click Here >> for more details...
6) Explain about below automatic variables
a) _N_
b) _ERROR_
c) _CHAR_
d) _NUMERIC_
e) _ALL_
f) FIRST.BY VARIABLE
g) LAST.BY VARIABLE
h) _NAME_
i) _TYPE_
j) _FREQ_
k) _STAT_
l) _BREAK
- 1 Answers
- 5725 Views
- IBM, SAS, I also Faced
- E-Mail Answers
Answer Posted / vrana95
Automatic variables are created automatically in the data statements and they are added to the PDV but not ouput to
to the resulting dataset which we want.
1)_N_ : number of times the data step has iterated. initially it is 1 and it's counter increases +1 , every time data steps crosses the data statements.
2)_ERROR_: It is 0 by default but is set to 1 every time
the error is encountered.
3)_CHARACTER_ : could be defined in the arrays and other data step programming to include all the character variables.
4)_NUMERIC_ : To include all the numeric variables
5)First.by variable and LAST.By : Whenever, we define a BY parameter with the SET statement, by default two
automatic variables are created in the background and we can utilize them for limiting the rows which we are interested in . {http://support.sas.com/documentation/cdl/en/lrcon/62955/HTML/default/viewer.htm#a000761931.htm}
7) _NAME_ : During transpose the variables you define in VAR statment are transposed and they comes in _NAME_ variable.
proc transpose data=x out=y prefix=m;
by variable1;
id variable2;
var variable3;
run;
8)_TYPE_ and _FREQ_: When you use PROC SUMMARY or PROC MEANS and we define Class parameter for two variables, and we use CHARTYPE in our Proc summary options, then
we get two automatic variables _TYPE_ and _FREQ_ . We can utilize it to limit the output we need.
9)_STAT_ :The default output of PROC MEANS, when no statistics are listed in the OUTPUT statement, is a data set containing a _STAT_ variable and the variables listed in the VAR statement. The output data set contains five records, one for each default statistic N, MIN, MAX, MEAN, and STD.
10) _BREAK_ : PROC report automatically create a variable
_BREAK_.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
What is the basic syntax of a sas program?
How do you convert basic cube to transaction cube and transaction cube to basic cube?
What are the parameters of scan function?
if a variable contain dates like "2015/01"---"2015/12" (yymm) ,How to add day to those dates,if them month is jan then 31 if the month is feb then 28 so on ...
WHAT IS SAS WEB SERVICE and what are the steps to create an xml service ?
Explain proc sort?
how does sas handle missing values in: assignment statements, functions, a merge, an update, sort order, formats, procs? : Sas programming
What do you know about symput and symget?
What are the ways to do a “table lookup” in sas?
what are input dataset and output dataset options? : Sas programming
Hi Jeevan/Akshara I have tried to contact SASI Vats for latest Advanced SAS Programming Certification Dumps (A00-212) but have not got any response. I would highly and gratefully appreciate your assistance in this regard. If you guys have access to this, would you be kind enough to forward it to me ? I would abide by all the terms you have for this. Please, note my email id: upretigopi@yahoo.com Preti Sharma
Mention the validation tools used in SAS?
what has been your most common programming mistake? : Sas programming
for report generation which one you used proc report or data_null_?
What is the difference between the proc sql and data step?
