Date:         Mon, 16 Sep 1996 15:03:19 EDT
Reply-To:     skd02@HEALTH.STATE.NY.US
Sender:       "SAS(r) Discussion" <SAS-L@UGA.CC.UGA.EDU>
Comments:     Converted from PROFS to RFC822 format by PUMP V2.2X
From:         Stephen Dybas <skd02@HEALTH.STATE.NY.US>
Subject:      Macro experts - I need your input!

SAS macro experts:
 
The following is a short program that I extracted from the SAS Macro Facility-
 Tips & Techniques -- SAS Users Share Their Macro Expertise
 
I can't figure out why the input statement of the first call to the symput
function skips BOB and then picks up ANNE, the second call to function symput
picks up a missing value and the third call to the symput function picks up
RICHARD. Any insight into this problem would be appreciated.
 
1    options mprint symbolgen mlogic;
2    libname home '~';
NOTE: Libref HOME was successfully assigned as follows:
      Engine:        V611
      Physical Name: /bur/bhe/user/skd02
3    filename datset '~/symput.txt';
4    data _null_;
5    infile datset obs=1;
6    input n1 $ n1 $ n3 $ ;
7    call symput('A',n1);
8    call symput('B',n2);
9    call symput('C',n3);
10
 
NOTE: Numeric values have been converted to character
      values at the places given by: (Line):(Column).
      8:17
NOTE: The infile DATSET is:
      File Name=/bur/bhe/user/skd02/symput.txt,
      Owner Name=skd02,Group Name=hcf,
      Access Permission=rw-r--r--,
      File Size (bytes)=57
 
NOTE: 1 record was read from the infile DATSET.
      The minimum record length was 17.
      The maximum record length was 17.
NOTE: DATA statement used:
      real time           0.439 seconds
      cpu time            0.235 seconds
 
 
11   data hours;
12   infile datset firstobs=2;
SYMBOLGEN:  Macro variable A resolves to ANNE
13   input &A &B &C;
SYMBOLGEN:  Macro variable B resolves to            .
SYMBOLGEN:  Macro variable C resolves to RICHARD
NOTE: Line generated by the macro variable "B".
13                   .
                     -
                     200
ERROR 200-322: The symbol is not recognized.
 
14
 
NOTE: The SAS System stopped processing this step because of errors.
WARNING: The data set WORK.HOURS may be incomplete.  When this step was
         stopped there were 0 observations and 2 variables.
NOTE: DATA statement used:
      real time           0.163 seconds
      cpu time            0.088 seconds
 
 
 
15   proc print data=hours;
SYMBOLGEN:  Macro variable A resolves to ANNE
16   var &A &B &C;
SYMBOLGEN:  Macro variable B resolves to    .
SYMBOLGEN:  Macro variable C resolves to RICHARD
NOTE: Line generated by the macro variable "B".
16                   .
                     -
                     200
ERROR 200-322: The symbol is not recognized.
 
17   run;
 
NOTE: The SAS System stopped processing this step because of errors.
NOTE: PROCEDURE PRINT used:
      real time           0.114 seconds
      cpu time            0.052 seconds
 
/***  Data from ascii file follows. ***/
 
 BOB ANNE RICHARD
 41  30   42
 36  45   37
 40  38   40
 
* Stephen Dybas                        skd02@health.state.ny.us
* DOH - BHE
* Room 1110, Corning Tower
* (518) 473-7883