title 'FunctionsIII Example 3 - Listing of Data Set HOAGIE';
data hoagie;
input string $10.;
length sub1 $5.;
sub1= substr(string,2,5);
sub2= substr(string,-1,4);
sub3= substr(string,3,0);
sub4= substr(string,7,5);
sub5= substr(string,0,2);
file print;
title " Demostrating the substrn function ";
put "Original String = " @25 string /
"substrn(string,2,5) = " @25 sub1 /
"substrn(string,-1,4) = "@25 sub2 /
"substrn(string,3,0) = " @25 sub3 /
"substrn(string,7,5) = " @25 sub4 /
"substrn(string,0,2) = " @25 sub5;
datalines;
ABCDEFGHIJ
;
run;
proc print;
run;
DATA HOAGIE;
STRING = 'ABCDEFGHIJ';
LENGTH RESULT $5.;
RESULT = SUBSTRN(STRING,2,5);
SUB1 = SUBSTRN(STRING,-1,4);
SUB2 = SUBSTRN(STRING,3,0);
SUB3 = SUBSTRN(STRING,7,5);
SUB4 = SUBSTRN(STRING,0,2);
FILE PRINT;
TITLE "Demonstrating the SUBSTRN Function";
PUT "Original String =" @25 STRING /
"SUBSTRN(STRING,2,5) =" @25 RESULT /
"SUBSTRN(STRING,-1,4) =" @25 SUB1 /
"SUBSTRN(STRING,3,0) =" @25 SUB2 /
"SUBSTRN(STRING,7,5) =" @25 SUB3 /
"SUBSTRN(STRING,0,2) =" @25 SUB4;
RUN;
proc print;
run;
The main difference between the two sets of code that I noticed (didn't look too closely though) are that the first set uses both the substr and substrn functions, while the second only used the substrn function.
The differences between the two functions are described at: http://support.sas.com/documentation/cdl/en/lrdict/64316/HTML/default/viewer.htm#a002255112.htm
Art, CEO, AnalystFinder.com
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