1. GENERICITY New Metadata Concepts Applied to SAS Macro Programming
Wolf-Dieter Batz: New Metadata Concepts

2. Preface What it is and what it is not
This paper presents part of my experiences using SAS Macro technology over years with great pleasure and, occasionally, with some success, at least for customer satisfaction.
Starting with an example from an earlier presentation the question is raised, how the positive correlation between program flexibility and number of parameters can be extinguished.
By introducing the term “Reporting Specific Data Structures” one idea is described that allows to make use from metadata already present in the runtime environment.
This paper is NOT about Programming using the SAS Macro Facility.
Wolf-Dieter Batz: New Metadata Concepts

3. + Concept Metadata Generic Programming
%LOCAL i_frq n_frq l_frq i_ctl n_ctl l_ctl;
%GLOBAL fct src tbl otb;
%MACRO cr_tbl_4_fct;
proc sql noprint;
%LET n_ctl = %SCAN(&FCT.,3,'_');
%LET n_frq = %SCAN(&FCT.,2,'_');
%IF %SCAN(&FCT.,1,'_') eq PRR %THEN %DO; /* start PRR main loop */
from dictionary.columns
select name
into :p_key ;
and varnum eq 1
and memname = %UPCASE("&TBL.")
where libname = %UPCASE("&SRC.")
, :l2frq separated by ' * '
, name
into :l_frq separated by ' '
insert into header values("PRR values calculated for &L2FRQ.");
and varnum le %EVAL(&N_FRQ. + 1)
and varnum gt 1
, :l2ctl separated by ' * '
into :l_ctl separated by ' , '
and varnum le %EVAL(&N_FRQ. + &N_CTL. + 1)
and varnum gt %EVAL(&N_FRQ. + 1)
from &SRC..&TBL.
select compbl(put(count(*),8.)||" lines processed from %UPCASE(&DB_USR.).&TBL.")
insert into footer values("Stratification performed by: &L2CTL.");
insert into footer
select compbl("Frequency tables based on "||put(count(distinct &P_KEY.),8.)||" distinct values from field &P_KEY.")
create table &SRC..c_frq as
%END; ,
%IF &I_FRQ. gt 1 %THEN %DO;
select distinct
%DO i_frq = 1 %TO &N_FRQ.;
%SCAN(&L_FRQ.,&I_FRQ.,' ')
where
and
%SCAN(&L_FRQ.,&I_FRQ.,' ') is not null
insert into footer values("&N_C_FRQ. combinations from &L2FRQ. processed");
%LET n_c_frq = &SQLOBS.;
quit;
call symput("%SCAN(&L_FRQ.,&I_FRQ.,' ')"||'_'||trim(left(put(_N_,4.))),trim(left(%SCAN(&L_FRQ.,&I_FRQ.,' '))));
set &SRC..c_frq;
data _null_;
run;
create view WORK.tbl as
proc sql;
%DO i_c_frq = 1 %TO &N_C_FRQ.; /* start FREQ loop */
case
%LET %SCAN(&L_FRQ.,&I_FRQ.,' ') = %QUOTE(&&%SCAN(&L_FRQ.,&I_FRQ.,' ')_&I_C_FRQ.);
&P_KEY. ,
end
as %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk ,
else 0
then -1
when sum( %SCAN(&L_FRQ.,&I_FRQ.,' ') = "&&%SCAN(&L_FRQ.,&I_FRQ.,' ')" ) > 0
group by
&L_CTL.
&P_KEY.
tables &L2CTL.
proc freq noprint data = WORK.tbl;
output out = WORK.cmh(keep = _mhrrc1_ l_mhrrc1 u_mhrrc1) cmh1;
/ cmh1
%STR(*) %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
tables
%SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
%STR(*)
output out = WORK.cmc(keep = l_mhrrc1 u_mhrrc1) cmh1;
/ sparse out = WORK.cnt(keep = count)
data WORK.res; merge WORK.trp WORK.cmh WORK.cmc(rename=(l_mhrrc1=l_mhrrcx u_mhrrc1=u_mhrrcx)); run;
proc transpose data = WORK.cnt out = WORK.trp; run;
select
create table WORK.out as
"&&%SCAN(&L_FRQ.,&I_FRQ.,' ')"
, col3 as b label = "cell B"
, col2 as c label = "cell C"
, col1 as a label = "cell A"
as %SCAN(&L_FRQ.,&I_FRQ.,' ')
, u_mhrrcx as cmhucrude label = "PRR crude upper CL"
, _mhrrc1_ as cmh_strat label = "PRR stratified"
, l_mhrrcx as cmhlcrude label = "PRR crude lower CL"
, (a/c)*((c+d)/(a+b)) as cmh_crude label = "PRR crude"
, col4 as d label = "cell D"
from WORK.res
, l_mhrrc1 as cmhlstrat label = "PRR stratified lower CL"
, u_mhrrc1 as cmhustrat label = "PRR stratified upper CL"
create table &SRC..&TBL.%SCAN(&FCT.,1,_) as
drop table &SRC..&TBL.%SCAN(&FCT.,1,_);
%IF &I_C_FRQ. = 1 %THEN %DO;
union
from &SRC..&TBL.%SCAN(&FCT.,1,_)
select *
%IF &I_C_FRQ. > 1 %THEN %DO;
from out
%END; /* end FREQ loop */
%IF %SUBSTR(&RST.,2,1) ne C %THEN %DO;
join &SRC..&TBL. as fct
right
from &SRC..&TBL.%SCAN(&FCT.,1,_) as tbl
%IF %SUBSTR(&RST.,1,1) ne R %THEN %DO; on
= tbl.%SCAN(&L_FRQ.,&I_FRQ.,' ')
fct.%SCAN(&L_FRQ.,&I_FRQ.,' ')
%ELSE %DO;
%END; /* end PRR main loop */
%LET tbl = &TBL.%SCAN(&FCT.,1,_);
%LET otb = &TBL.;
%MEND cr_tbl_4_fct;
Concept +
Metadata
Wolf-Dieter Batz: New Metadata Concepts

4. “A problem well stated is a problem half solved“
Never forget
“A problem well stated is a problem half solved“
Charles Kettering ( )
Founder of the General Motors Research Corporation
Wolf-Dieter Batz: New Metadata Concepts

5. Np = f(F) Number of Parameters Flexibility
Wolf-Dieter Batz: New Metadata Concepts

6. When producing reports
Intro
When producing reports
You might end up with
One appropriately sized program per report
One somehow macroized program per report type
One Macro System for reporting domains
Wolf-Dieter Batz: New Metadata Concepts

7. Start
For example:
Wolf-Dieter Batz: New Metadata Concepts

8. This Quest
Wolf-Dieter Batz: New Metadata Concepts

9. generated by a single macro system
Wolf-Dieter Batz: New Metadata Concepts

10. System Architecture User Modules Core Modules Info Modules
Generate datasets carrying subtables controlled by user-supplied parms
Core Modules
Perform input transformation, calculations and output transformation
Info Modules
Provide information about datasets and variables for correct processing
Service Modules
Provide frequently requested tasks in a standard format with limited parameter set
Wolf-Dieter Batz: New Metadata Concepts

11. Required already a few parameters
Program Controlling
Required already a few parameters
Wolf-Dieter Batz: New Metadata Concepts

12. full parameter set – user modules
%TWO_BOBO() – Build super row (=block) from boolean selections nested in boolean selection
dsn input dataset name
row, row2 categorial variable name, 2=list of nested_var#true_value
rev Y/N (output decodes of &ROW in reverse order)
use, use2 select decode from &ROW, 2=decode from &ROW used as nesting context
weight Y/N (multiply percentages for &ROW and &ROW2)
col categorial variable name used for columns
total T/I/B/O/N/TC/IC/BC/OC/NC
head, head2 Y/N (block header, 2=nested variable)
indent, indinc n (number of indent columns and increment for nested variable)
num n (sequence number of output)
stat Y/N (column with statistics names)
space 1/2/3 (blank line before or after output and between nesting levels)
struct, struct2 name of reference dataset used for full decode structure, 2=nested variable
condense var#value (non-distinct variable and true value for &ROW)
misslin2 Y/N (force missing line for nested variable)
Wolf-Dieter Batz: New Metadata Concepts

13. user parameters - common
DSN: Name of input dataset or view. This may be any valid SAS dataset name (one-level or two-level) not accompanied by dataset options or other SAS syntax components.
COL: Name of variable used to construct columns. The variable is checked for number of levels and an appropriate number of columns are generated.
ROW: Name of variable to construct rows, superrows, and subtables. Modules capable of processing more than one variable accept a list here.
HEAD: Optionally specify “N” to suppress output of the header line for the row variable generated from their label. In categorial processing the header is an additional 1st line whereas in continuous processing the header text is written left-hand to the 1st stats line output. Default is “Y”.
STAT: Optionally select “Y” to generate an output column which contains the names of statistics generated. Default is “N”.
INDENT: Optionally select a positive integer to indent the rows generated as one block. Default is “0”.
SPACE: Optionally select spacing mode for one-level subtables: 0=no blank lines; 1=1st output line is blank; 2=last output line is blank. Default is “2”. For two-level subtables: 2=insert additional blank line between upper and lower level output; 3=only last output line is a blank line. Default is “3”.
NUM: Assigns a unique number to the output generated. Only one digit is allowed here.
Wolf-Dieter Batz: New Metadata Concepts

14. This appears quite complicated
Not amused
This appears quite complicated
Isn’t there another way
To have limited source code
With a high level of flexibility
And not to drown in parameter flood
Let’s have a closer look…
Wolf-Dieter Batz: New Metadata Concepts

15. When running macro programs
Talk to me
When running macro programs
You may influence results on several levels
Parameter passing (“feed”)
Controlling (“feed and prevent”)
Communication (“feed, prevent and search”)
Wolf-Dieter Batz: New Metadata Concepts

16. Make your Macro a curious Communicator
Search
Make your Macro a curious Communicator
Implement a search mechanism that
makes it follow a set of rules
provides or
generates knowledge on metadata in reach
is fault-tolerant
Wolf-Dieter Batz: New Metadata Concepts

17. Of course, this should be a Macro because you want to
Search
Of course, this should be a Macro because you want to
do it once
do it generic
use it forever
Wolf-Dieter Batz: New Metadata Concepts

18. Metadata are all around
Simple variable lists: “-NUMERIC-”
Libref “dictionary”: tables, columns, etc.
User defined repositories of any kind
Wolf-Dieter Batz: New Metadata Concepts

19. Report Specific Data Structures
Let’s focus on one
One of the frequently neglected or simply overseen information bits from dictionary.columns is VARNUM.
This may result from historical reasons, since the SAS dataset structure was learned as more or less fixed.
Reordering a dataset’s variables was not supported very well by the SAS System and hence, not used.
Since concepts emerge from programming habits…
Wolf-Dieter Batz: New Metadata Concepts

20. Report Specific Data Structures
SQL Views
Today, since 1990, it is very easy to reorder the “virtual physical” sequence of variables in a dataset.
The SAS System treats the properties of an SQL view equally to those of an old-fashioned somewhat “clumsy” SAS Dataset.
This is good News!
Wolf-Dieter Batz: New Metadata Concepts

21. Report Specific Data Structures
Let’s try a small example:
Wolf-Dieter Batz: New Metadata Concepts

22. Report Specific Data Structures
data testdsn; label a=Variable A in SAS Dataset b=Variable B in SAS Dataset ; a=22; b=190; run; proc sql; create view testsql as select b as a label="Variable B from SAS Dataset" , a as b label="Variable A from SAS Dataset" from testdsn ; select memname , name , label , varnum from dictionary.columns where memname like 'TEST___' ; quit;
Wolf-Dieter Batz: New Metadata Concepts

23. Report Specific Data Structures
Member Name
Column Name
Column Label
Column Number in Table
TESTDSN a
Variable A in SAS Dataset 1 b
Variable B in SAS Dataset 2
TESTSQL
Variable B from SAS Dataset
Variable A from SAS Dataset
Wolf-Dieter Batz: New Metadata Concepts

24. Report Specific Data Structures
Access Layer
Obviously, utilizing the select clause in an SQL view adds a high amount of information to the data structure. This is not surprising, in case you
are a physicist
can count from zero to 1023 using ten fingers
Wolf-Dieter Batz: New Metadata Concepts

25. Information Gain by Ordering
Source:
Wolf-Dieter Batz: New Metadata Concepts

26. Report Specific Data Structures
Now let’s have a look a real life:
Wolf-Dieter Batz: New Metadata Concepts

27. Report Specific Data Structures
Wolf-Dieter Batz: New Metadata Concepts

28. Report Specific Data Structures
Wolf-Dieter Batz: New Metadata Concepts

29. Resulting Output
Wolf-Dieter Batz: New Metadata Concepts

30. Howto Wolf-Dieter Batz: New Metadata Concepts
%LOCAL i_frq n_frq l_frq i_ctl n_ctl l_ctl;
%GLOBAL fct src tbl otb;
%MACRO cr_tbl_4_fct;
proc sql noprint;
%LET n_ctl = %SCAN(&FCT.,3,'_');
%LET n_frq = %SCAN(&FCT.,2,'_');
%IF %SCAN(&FCT.,1,'_') eq PRR %THEN %DO; /* start PRR main loop */
from dictionary.columns
select name
into :p_key ;
and varnum eq 1
and memname = %UPCASE("&TBL.")
where libname = %UPCASE("&SRC.")
, :l2frq separated by ' * '
, name
into :l_frq separated by ' '
insert into header values("PRR values calculated for &L2FRQ.");
and varnum le %EVAL(&N_FRQ. + 1)
and varnum gt 1
, :l2ctl separated by ' * '
into :l_ctl separated by ' , '
and varnum le %EVAL(&N_FRQ. + &N_CTL. + 1)
and varnum gt %EVAL(&N_FRQ. + 1)
from &SRC..&TBL.
select compbl(put(count(*),8.)||" lines processed from %UPCASE(&DB_USR.).&TBL.")
insert into footer values("Stratification performed by: &L2CTL.");
insert into footer
select compbl("Frequency tables based on "||put(count(distinct &P_KEY.),8.)||" distinct values from field &P_KEY.")
create table &SRC..c_frq as
%END; ,
%IF &I_FRQ. gt 1 %THEN %DO;
select distinct
%DO i_frq = 1 %TO &N_FRQ.;
%SCAN(&L_FRQ.,&I_FRQ.,' ')
where
and
%SCAN(&L_FRQ.,&I_FRQ.,' ') is not null
insert into footer values("&N_C_FRQ. combinations from &L2FRQ. processed");
%LET n_c_frq = &SQLOBS.;
quit;
call symput("%SCAN(&L_FRQ.,&I_FRQ.,' ')"||'_'||trim(left(put(_N_,4.))),trim(left(%SCAN(&L_FRQ.,&I_FRQ.,' '))));
set &SRC..c_frq;
data _null_;
run;
create view WORK.tbl as
proc sql;
%DO i_c_frq = 1 %TO &N_C_FRQ.; /* start FREQ loop */
case
%LET %SCAN(&L_FRQ.,&I_FRQ.,' ') = %QUOTE(&&%SCAN(&L_FRQ.,&I_FRQ.,' ')_&I_C_FRQ.);
&P_KEY. ,
end
as %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk ,
else 0
then -1
when sum( %SCAN(&L_FRQ.,&I_FRQ.,' ') = "&&%SCAN(&L_FRQ.,&I_FRQ.,' ')" ) > 0
group by
&L_CTL.
&P_KEY.
tables &L2CTL.
proc freq noprint data = WORK.tbl;
output out = WORK.cmh(keep = _mhrrc1_ l_mhrrc1 u_mhrrc1) cmh1;
/ cmh1
%STR(*) %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
tables
%SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
%STR(*)
output out = WORK.cmc(keep = l_mhrrc1 u_mhrrc1) cmh1;
/ sparse out = WORK.cnt(keep = count)
data WORK.res; merge WORK.trp WORK.cmh WORK.cmc(rename=(l_mhrrc1=l_mhrrcx u_mhrrc1=u_mhrrcx)); run;
proc transpose data = WORK.cnt out = WORK.trp; run;
select
create table WORK.out as
"&&%SCAN(&L_FRQ.,&I_FRQ.,' ')"
, col3 as b label = "cell B"
, col2 as c label = "cell C"
, col1 as a label = "cell A"
as %SCAN(&L_FRQ.,&I_FRQ.,' ')
, u_mhrrcx as cmhucrude label = "PRR crude upper CL"
, _mhrrc1_ as cmh_strat label = "PRR stratified"
, l_mhrrcx as cmhlcrude label = "PRR crude lower CL"
, (a/c)*((c+d)/(a+b)) as cmh_crude label = "PRR crude"
, col4 as d label = "cell D"
from WORK.res
, l_mhrrc1 as cmhlstrat label = "PRR stratified lower CL"
, u_mhrrc1 as cmhustrat label = "PRR stratified upper CL"
create table &SRC..&TBL.%SCAN(&FCT.,1,_) as
drop table &SRC..&TBL.%SCAN(&FCT.,1,_);
%IF &I_C_FRQ. = 1 %THEN %DO;
union
from &SRC..&TBL.%SCAN(&FCT.,1,_)
select *
%IF &I_C_FRQ. > 1 %THEN %DO;
from out
%END; /* end FREQ loop */
%IF %SUBSTR(&RST.,2,1) ne C %THEN %DO;
join &SRC..&TBL. as fct
right
from &SRC..&TBL.%SCAN(&FCT.,1,_) as tbl
%IF %SUBSTR(&RST.,1,1) ne R %THEN %DO; on
= tbl.%SCAN(&L_FRQ.,&I_FRQ.,' ')
fct.%SCAN(&L_FRQ.,&I_FRQ.,' ')
%ELSE %DO;
%END; /* end PRR main loop */
%LET tbl = &TBL.%SCAN(&FCT.,1,_);
%LET otb = &TBL.;
%MEND cr_tbl_4_fct;
%LET n_frq = %SCAN(&FCT.,2,'_');
%LET n_ctl = %SCAN(&FCT.,3,'_');
Wolf-Dieter Batz: New Metadata Concepts

31. Howto Wolf-Dieter Batz: New Metadata Concepts select name into :p_key
%LOCAL i_frq n_frq l_frq i_ctl n_ctl l_ctl;
%GLOBAL fct src tbl otb;
%MACRO cr_tbl_4_fct;
proc sql noprint;
%LET n_ctl = %SCAN(&FCT.,3,'_');
%LET n_frq = %SCAN(&FCT.,2,'_');
%IF %SCAN(&FCT.,1,'_') eq PRR %THEN %DO; /* start PRR main loop */
from dictionary.columns
select name
into :p_key ;
and varnum eq 1
and memname = %UPCASE("&TBL.")
where libname = %UPCASE("&SRC.")
, :l2frq separated by ' * '
, name
into :l_frq separated by ' '
insert into header values("PRR values calculated for &L2FRQ.");
and varnum le %EVAL(&N_FRQ. + 1)
and varnum gt 1
, :l2ctl separated by ' * '
into :l_ctl separated by ' , '
and varnum le %EVAL(&N_FRQ. + &N_CTL. + 1)
and varnum gt %EVAL(&N_FRQ. + 1)
from &SRC..&TBL.
select compbl(put(count(*),8.)||" lines processed from %UPCASE(&DB_USR.).&TBL.")
insert into footer values("Stratification performed by: &L2CTL.");
insert into footer
select compbl("Frequency tables based on "||put(count(distinct &P_KEY.),8.)||" distinct values from field &P_KEY.")
create table &SRC..c_frq as
%END; ,
%IF &I_FRQ. gt 1 %THEN %DO;
select distinct
%DO i_frq = 1 %TO &N_FRQ.;
%SCAN(&L_FRQ.,&I_FRQ.,' ')
where
and
%SCAN(&L_FRQ.,&I_FRQ.,' ') is not null
insert into footer values("&N_C_FRQ. combinations from &L2FRQ. processed");
%LET n_c_frq = &SQLOBS.;
quit;
call symput("%SCAN(&L_FRQ.,&I_FRQ.,' ')"||'_'||trim(left(put(_N_,4.))),trim(left(%SCAN(&L_FRQ.,&I_FRQ.,' '))));
set &SRC..c_frq;
data _null_;
run;
create view WORK.tbl as
proc sql;
%DO i_c_frq = 1 %TO &N_C_FRQ.; /* start FREQ loop */
case
%LET %SCAN(&L_FRQ.,&I_FRQ.,' ') = %QUOTE(&&%SCAN(&L_FRQ.,&I_FRQ.,' ')_&I_C_FRQ.);
&P_KEY. ,
end
as %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk ,
else 0
then -1
when sum( %SCAN(&L_FRQ.,&I_FRQ.,' ') = "&&%SCAN(&L_FRQ.,&I_FRQ.,' ')" ) > 0
group by
&L_CTL.
&P_KEY.
tables &L2CTL.
proc freq noprint data = WORK.tbl;
output out = WORK.cmh(keep = _mhrrc1_ l_mhrrc1 u_mhrrc1) cmh1;
/ cmh1
%STR(*) %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
tables
%SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
%STR(*)
output out = WORK.cmc(keep = l_mhrrc1 u_mhrrc1) cmh1;
/ sparse out = WORK.cnt(keep = count)
data WORK.res; merge WORK.trp WORK.cmh WORK.cmc(rename=(l_mhrrc1=l_mhrrcx u_mhrrc1=u_mhrrcx)); run;
proc transpose data = WORK.cnt out = WORK.trp; run;
select
create table WORK.out as
"&&%SCAN(&L_FRQ.,&I_FRQ.,' ')"
, col3 as b label = "cell B"
, col2 as c label = "cell C"
, col1 as a label = "cell A"
as %SCAN(&L_FRQ.,&I_FRQ.,' ')
, u_mhrrcx as cmhucrude label = "PRR crude upper CL"
, _mhrrc1_ as cmh_strat label = "PRR stratified"
, l_mhrrcx as cmhlcrude label = "PRR crude lower CL"
, (a/c)*((c+d)/(a+b)) as cmh_crude label = "PRR crude"
, col4 as d label = "cell D"
from WORK.res
, l_mhrrc1 as cmhlstrat label = "PRR stratified lower CL"
, u_mhrrc1 as cmhustrat label = "PRR stratified upper CL"
create table &SRC..&TBL.%SCAN(&FCT.,1,_) as
drop table &SRC..&TBL.%SCAN(&FCT.,1,_);
%IF &I_C_FRQ. = 1 %THEN %DO;
union
from &SRC..&TBL.%SCAN(&FCT.,1,_)
select *
%IF &I_C_FRQ. > 1 %THEN %DO;
from out
%END; /* end FREQ loop */
%IF %SUBSTR(&RST.,2,1) ne C %THEN %DO;
join &SRC..&TBL. as fct
right
from &SRC..&TBL.%SCAN(&FCT.,1,_) as tbl
%IF %SUBSTR(&RST.,1,1) ne R %THEN %DO; on
= tbl.%SCAN(&L_FRQ.,&I_FRQ.,' ')
fct.%SCAN(&L_FRQ.,&I_FRQ.,' ')
%ELSE %DO;
%END; /* end PRR main loop */
%LET tbl = &TBL.%SCAN(&FCT.,1,_);
%LET otb = &TBL.;
%MEND cr_tbl_4_fct;
select name
into :p_key
from dictionary.columns
where libname = %UPCASE("&SRC.")
and memname = %UPCASE("&TBL.")
and varnum eq 1 ;
Wolf-Dieter Batz: New Metadata Concepts

32. Howto Wolf-Dieter Batz: New Metadata Concepts select name , name
%LOCAL i_frq n_frq l_frq i_ctl n_ctl l_ctl;
%GLOBAL fct src tbl otb;
%MACRO cr_tbl_4_fct;
proc sql noprint;
%LET n_ctl = %SCAN(&FCT.,3,'_');
%LET n_frq = %SCAN(&FCT.,2,'_');
%IF %SCAN(&FCT.,1,'_') eq PRR %THEN %DO; /* start PRR main loop */
from dictionary.columns
select name
into :p_key ;
and varnum eq 1
and memname = %UPCASE("&TBL.")
where libname = %UPCASE("&SRC.")
, :l2frq separated by ' * '
, name
into :l_frq separated by ' '
insert into header values("PRR values calculated for &L2FRQ.");
and varnum le %EVAL(&N_FRQ. + 1)
and varnum gt 1
, :l2ctl separated by ' * '
into :l_ctl separated by ' , '
and varnum le %EVAL(&N_FRQ. + &N_CTL. + 1)
and varnum gt %EVAL(&N_FRQ. + 1)
from &SRC..&TBL.
select compbl(put(count(*),8.)||" lines processed from %UPCASE(&DB_USR.).&TBL.")
insert into footer values("Stratification performed by: &L2CTL.");
insert into footer
select compbl("Frequency tables based on "||put(count(distinct &P_KEY.),8.)||" distinct values from field &P_KEY.")
create table &SRC..c_frq as
%END; ,
%IF &I_FRQ. gt 1 %THEN %DO;
select distinct
%DO i_frq = 1 %TO &N_FRQ.;
%SCAN(&L_FRQ.,&I_FRQ.,' ')
where
and
%SCAN(&L_FRQ.,&I_FRQ.,' ') is not null
insert into footer values("&N_C_FRQ. combinations from &L2FRQ. processed");
%LET n_c_frq = &SQLOBS.;
quit;
call symput("%SCAN(&L_FRQ.,&I_FRQ.,' ')"||'_'||trim(left(put(_N_,4.))),trim(left(%SCAN(&L_FRQ.,&I_FRQ.,' '))));
set &SRC..c_frq;
data _null_;
run;
create view WORK.tbl as
proc sql;
%DO i_c_frq = 1 %TO &N_C_FRQ.; /* start FREQ loop */
case
%LET %SCAN(&L_FRQ.,&I_FRQ.,' ') = %QUOTE(&&%SCAN(&L_FRQ.,&I_FRQ.,' ')_&I_C_FRQ.);
&P_KEY. ,
end
as %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk ,
else 0
then -1
when sum( %SCAN(&L_FRQ.,&I_FRQ.,' ') = "&&%SCAN(&L_FRQ.,&I_FRQ.,' ')" ) > 0
group by
&L_CTL.
&P_KEY.
tables &L2CTL.
proc freq noprint data = WORK.tbl;
output out = WORK.cmh(keep = _mhrrc1_ l_mhrrc1 u_mhrrc1) cmh1;
/ cmh1
%STR(*) %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
tables
%SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
%STR(*)
output out = WORK.cmc(keep = l_mhrrc1 u_mhrrc1) cmh1;
/ sparse out = WORK.cnt(keep = count)
data WORK.res; merge WORK.trp WORK.cmh WORK.cmc(rename=(l_mhrrc1=l_mhrrcx u_mhrrc1=u_mhrrcx)); run;
proc transpose data = WORK.cnt out = WORK.trp; run;
select
create table WORK.out as
"&&%SCAN(&L_FRQ.,&I_FRQ.,' ')"
, col3 as b label = "cell B"
, col2 as c label = "cell C"
, col1 as a label = "cell A"
as %SCAN(&L_FRQ.,&I_FRQ.,' ')
, u_mhrrcx as cmhucrude label = "PRR crude upper CL"
, _mhrrc1_ as cmh_strat label = "PRR stratified"
, l_mhrrcx as cmhlcrude label = "PRR crude lower CL"
, (a/c)*((c+d)/(a+b)) as cmh_crude label = "PRR crude"
, col4 as d label = "cell D"
from WORK.res
, l_mhrrc1 as cmhlstrat label = "PRR stratified lower CL"
, u_mhrrc1 as cmhustrat label = "PRR stratified upper CL"
create table &SRC..&TBL.%SCAN(&FCT.,1,_) as
drop table &SRC..&TBL.%SCAN(&FCT.,1,_);
%IF &I_C_FRQ. = 1 %THEN %DO;
union
from &SRC..&TBL.%SCAN(&FCT.,1,_)
select *
%IF &I_C_FRQ. > 1 %THEN %DO;
from out
%END; /* end FREQ loop */
%IF %SUBSTR(&RST.,2,1) ne C %THEN %DO;
join &SRC..&TBL. as fct
right
from &SRC..&TBL.%SCAN(&FCT.,1,_) as tbl
%IF %SUBSTR(&RST.,1,1) ne R %THEN %DO; on
= tbl.%SCAN(&L_FRQ.,&I_FRQ.,' ')
fct.%SCAN(&L_FRQ.,&I_FRQ.,' ')
%ELSE %DO;
%END; /* end PRR main loop */
%LET tbl = &TBL.%SCAN(&FCT.,1,_);
%LET otb = &TBL.;
%MEND cr_tbl_4_fct;
select name
, name
into :l_frq separated by ' '
, :l2frq separated by ' * '
from dictionary.columns
where libname = %UPCASE("&SRC.")
and memname = %UPCASE("&TBL.")
and varnum gt 1
and varnum le %EVAL(&N_FRQ. + 1) ;
Wolf-Dieter Batz: New Metadata Concepts

33. Howto Wolf-Dieter Batz: New Metadata Concepts select name , name
%LOCAL i_frq n_frq l_frq i_ctl n_ctl l_ctl;
%GLOBAL fct src tbl otb;
%MACRO cr_tbl_4_fct;
proc sql noprint;
%LET n_ctl = %SCAN(&FCT.,3,'_');
%LET n_frq = %SCAN(&FCT.,2,'_');
%IF %SCAN(&FCT.,1,'_') eq PRR %THEN %DO; /* start PRR main loop */
from dictionary.columns
select name
into :p_key ;
and varnum eq 1
and memname = %UPCASE("&TBL.")
where libname = %UPCASE("&SRC.")
, :l2frq separated by ' * '
, name
into :l_frq separated by ' '
insert into header values("PRR values calculated for &L2FRQ.");
and varnum le %EVAL(&N_FRQ. + 1)
and varnum gt 1
, :l2ctl separated by ' * '
into :l_ctl separated by ' , '
and varnum le %EVAL(&N_FRQ. + &N_CTL. + 1)
and varnum gt %EVAL(&N_FRQ. + 1)
from &SRC..&TBL.
select compbl(put(count(*),8.)||" lines processed from %UPCASE(&DB_USR.).&TBL.")
insert into footer values("Stratification performed by: &L2CTL.");
insert into footer
select compbl("Frequency tables based on "||put(count(distinct &P_KEY.),8.)||" distinct values from field &P_KEY.")
create table &SRC..c_frq as
%END; ,
%IF &I_FRQ. gt 1 %THEN %DO;
select distinct
%DO i_frq = 1 %TO &N_FRQ.;
%SCAN(&L_FRQ.,&I_FRQ.,' ')
where
and
%SCAN(&L_FRQ.,&I_FRQ.,' ') is not null
insert into footer values("&N_C_FRQ. combinations from &L2FRQ. processed");
%LET n_c_frq = &SQLOBS.;
quit;
call symput("%SCAN(&L_FRQ.,&I_FRQ.,' ')"||'_'||trim(left(put(_N_,4.))),trim(left(%SCAN(&L_FRQ.,&I_FRQ.,' '))));
set &SRC..c_frq;
data _null_;
run;
create view WORK.tbl as
proc sql;
%DO i_c_frq = 1 %TO &N_C_FRQ.; /* start FREQ loop */
case
%LET %SCAN(&L_FRQ.,&I_FRQ.,' ') = %QUOTE(&&%SCAN(&L_FRQ.,&I_FRQ.,' ')_&I_C_FRQ.);
&P_KEY. ,
end
as %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk ,
else 0
then -1
when sum( %SCAN(&L_FRQ.,&I_FRQ.,' ') = "&&%SCAN(&L_FRQ.,&I_FRQ.,' ')" ) > 0
group by
&L_CTL.
&P_KEY.
tables &L2CTL.
proc freq noprint data = WORK.tbl;
output out = WORK.cmh(keep = _mhrrc1_ l_mhrrc1 u_mhrrc1) cmh1;
/ cmh1
%STR(*) %SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
tables
%SCAN(&L_FRQ.,&I_FRQ.,' ')_rnk
%STR(*)
output out = WORK.cmc(keep = l_mhrrc1 u_mhrrc1) cmh1;
/ sparse out = WORK.cnt(keep = count)
data WORK.res; merge WORK.trp WORK.cmh WORK.cmc(rename=(l_mhrrc1=l_mhrrcx u_mhrrc1=u_mhrrcx)); run;
proc transpose data = WORK.cnt out = WORK.trp; run;
select
create table WORK.out as
"&&%SCAN(&L_FRQ.,&I_FRQ.,' ')"
, col3 as b label = "cell B"
, col2 as c label = "cell C"
, col1 as a label = "cell A"
as %SCAN(&L_FRQ.,&I_FRQ.,' ')
, u_mhrrcx as cmhucrude label = "PRR crude upper CL"
, _mhrrc1_ as cmh_strat label = "PRR stratified"
, l_mhrrcx as cmhlcrude label = "PRR crude lower CL"
, (a/c)*((c+d)/(a+b)) as cmh_crude label = "PRR crude"
, col4 as d label = "cell D"
from WORK.res
, l_mhrrc1 as cmhlstrat label = "PRR stratified lower CL"
, u_mhrrc1 as cmhustrat label = "PRR stratified upper CL"
create table &SRC..&TBL.%SCAN(&FCT.,1,_) as
drop table &SRC..&TBL.%SCAN(&FCT.,1,_);
%IF &I_C_FRQ. = 1 %THEN %DO;
union
from &SRC..&TBL.%SCAN(&FCT.,1,_)
select *
%IF &I_C_FRQ. > 1 %THEN %DO;
from out
%END; /* end FREQ loop */
%IF %SUBSTR(&RST.,2,1) ne C %THEN %DO;
join &SRC..&TBL. as fct
right
from &SRC..&TBL.%SCAN(&FCT.,1,_) as tbl
%IF %SUBSTR(&RST.,1,1) ne R %THEN %DO; on
= tbl.%SCAN(&L_FRQ.,&I_FRQ.,' ')
fct.%SCAN(&L_FRQ.,&I_FRQ.,' ')
%ELSE %DO;
%END; /* end PRR main loop */
%LET tbl = &TBL.%SCAN(&FCT.,1,_);
%LET otb = &TBL.;
%MEND cr_tbl_4_fct;
select name
, name
into :l_ctl separated by ' , '
, :l2ctl separated by ' * '
from dictionary.columns
where libname = %UPCASE("&SRC.")
and memname = %UPCASE("&TBL.")
and varnum gt %EVAL(&N_FRQ. + 1)
and varnum le %EVAL(&N_FRQ. + &N_CTL. + 1) ;
Wolf-Dieter Batz: New Metadata Concepts

34. Questions welcome
Wolf-Dieter Batz: New Metadata Concepts

35. THANK YOU
Wolf-Dieter Batz: New Metadata Concepts