I created below macro to generate few datasets based on date macro.
%macro pull(date);
proc sql;
create table new&date as
select * from acct
where date=&date.;
quit;
%mend;
So if i want to create dataset for 20170101 20170201 20170301 20170401 20170501, all i can do is use below macro
%macro pull(20170101)
%macro pull(20170201)
%macro pull(20170301)
%macro pull(20170401)
%macro pull(20170501)
What i am planning now is create two macro variables
%let begin=20170101;
%let end =20170501;
and create datasets based on begin and end using loop. Is it possible to do that.So what i am trying to do is give start and end date as macro variable and pull records between begin and end date from acct dataset and create separate datasets for each month between start and end dates
Note dataset have monthly dates for each year.
Below is the code i am trying
%let beg="01jan2000"d;
%let end="01jan2001"d;
%macro Test;
%do date=&beg. %to &end.;
proc sql;
create table IPw_&date. as
select *
from sample
where date=&date. quit;
%end;
%mend;
%Test;
When date information must be inferred from values that are not SAS date values you will need to input the information to get a date value, and put the values iterated over to get the desired non date representation.
This example demonstrates
INPUTN function to parse the YYYYMMDD arguments into date values using informat YYMMDD8.
INTNX function to compute 1st of the month of the date values
PUTN function to convert a date value to a YYYYMMDD representation using format YYMMDDN8.
%DO %WHILE statement for iterating
INTNX function to advance the iteration variable to the start of the next month
Code
%macro pull(yyyymmdd);
%local out;
%let out = pull_&yyyymmdd;
data &out;
pull_date = input ("&yyyymmdd", yymmdd8.);
format pull_date yymmdd10.;
run;
%mend;
%macro pull_each_month(begin=, end=);
%local
begin_date end_date
begin_month end_month
pull_date pull_ymd
;
%put NOTE: &=begin &=end;
%let begin_date = %sysfunc(inputn(&begin,yymmdd8.));
%let end_date = %sysfunc(inputn(&end,yymmdd8.));
%put NOTE: &=begin_date &=end_date;
%let begin_month = %sysfunc(intnx(month,&begin_date,0));
%let end_month = %sysfunc(intnx(month,&end_date,0));
%put NOTE: &=begin_month &=end_month;
%let pull_month = &begin_month;
%do %while (&pull_month <= &end_month);
%let pull_ymd = %sysfunc(putn(&pull_month,yymmddn8.));
%put NOTE: Invoking pull for &=pull_month &=pull_ymd;
%pull (&pull_ymd)
%let pull_month = %sysfunc(INTNX(MONTH,&pull_month,1));
%end;
%mend;
%pull_each_month (
begin = 20170101
, end = 20170501
)
%macro pull_each_month(begin=, end=);
%local
begin_date end_date
begin_month end_month
pull_date pull_ymd
;
%put NOTE: &=begin &=end;
%let begin_date = %sysfunc(inputn(&begin,yymmdd8.));
%let end_date = %sysfunc(inputn(&end,yymmdd8.));
%put NOTE: &=begin_date &=end_date;
%let begin_month = %sysfunc(intnx(month,&begin_date,0));
%let end_month = %sysfunc(intnx(month,&end_date,0));
%put NOTE: &=begin_month &=end_month;
%let pull_month = &begin_month;
%do %while (&pull_month <= &end_month);
%let pull_ymd = %sysfunc(putn(&pull_month,yymmddn8.));
%put NOTE: Invoking pull for &=pull_month &=pull_ymd;
%let pull_month = %sysfunc(INTNX(MONTH,&pull_month,1));
%end;
%mend;
%pull_each_month (
begin = 20170101
, end = 20170501
)
%macro pull(begin,end);
%let i=0;
%let begin=%sysfunc(inputn(&begin,anydtdte9.));
%let end=%sysfunc(inputn(&end,anydtdte9.));
%do %until (&begin=&end);
%let begin=%sysfunc(intnx(month,&begin,&i));
%let date=%sysfunc(putn(&begin,yymmddn8.));
proc sql;
create table new&date as
select * from acct where date=&date.;
quit;
%let i=%eval(&i+1);
%end;
%mend;
%pull(20170101,20170501)
Related
need help on one query , I have to iterate date in do loop that is in format of yymmd6.(202112) so that once the month reach to 12 then its automatically change to next year first month.
///// code////////
%let startmo=202010 ;
%let endmo= 202102;
%macro test;
%do month= &startmo %to &endmo;
Data ABC_&month;
Set test&month;
X=&month ;
%end;
Run;
%mend;
%test;
//////////
Output should be 5 dataset as
ABC_202010
ABC_202011
ABC_202012
ABC_202101
ABC_20210
I need macro variable month to be resolved 202101 once it reached to 202012
Those are not actual DATE values. Just strings that you have imposed your own interpretation on so that they LOOK like dates to you.
Use date values instead and then it is easy to generate strings in the style you need by using a FORMAt.
%macro test(startmo,endmo);
%local offset month month_string;
%do offset = 0 to %sysfunc(intck(month,&startmo,&endmo));
%let month=%sysfunc(intnx(month,&startmo,&offset));
%let month_string=%sysfunc(putn(&month,yymmn6.));
data ABC_&month_string;
set test&month_string;
X=&month ;
format X monyy7.;
run;
%end;
%mend;
%test(startmo='01OCT2020'd , endmo='01FEB2021'd)
And if you need to convert one of those strings into a date value use an INFORMAT.
%let date=%sysfunc(inputn(202010,yymmn6.));
I would prefer to use a do while loop.
check whether the last 2 characters are 12, if so, change the month part to 01.
code
%let startmo=202010 ;
%let endmo= 202102;
%macro test;
%do %while(&startmo <= &endmo);
Data ABC_&startmo;
Set test&startmo;
X=&startmo ;
Run;
%end;
%let mon = %substr(&startmo, 5, 2);
%let yr = %substr(&startmo, 1, 4);
%if &mon = 12 %then %do;
%let m = 01;
%let startmo = %sysfunc(cat(%eval(&yr + 1), &m));
%end;
%else %do;
%let startmo = %eval(&startmo + 1);
%end;
%mend;
%test;
I have created two global macro variables.
date=10/6/2016
b=simple
I want to create a dataset with variable which refers above macros
below are the variables which i want based on condition.
varible1: Date- which the refers the date macro variable
variable2:condition- if b =simple then condition =y or if b is not equal to simple then condition =n
So dateset will look like below
Date condition
10/6/2016 y
You have two options.
Number one (using macro-variables in a data step):
data result;
format date ddmmyy10.;
date = input("&date", ddmmyy10.);
if "&b" = "simple" then condition = "y";
else condition = "n";
run;
Number two (create macro and generate SAS code based on a macro-variable value):
%macro test;
data result;
format date ddmmyy10.;
date = input("&date", ddmmyy10.);
%if &b = simple %then %do;
condition = "y";
%end;
%else %do;
condition = "n";
%end;
run;
%mend test;
%test
Edited:
Or using PROC SQL:
%let date=12/10/2016;
%let b=simple;
proc sql;
create table result
(
date num format=ddmmyy10.,
condition char(1)
);
quit;
%macro insert;
proc sql;
%if &b = simple %then %do;
%let condition = y;
%end;
%else %do;
%let condition = n;
%end;
insert into result (date, condition) values (%sysfunc(inputn(&date, ddmmyy10.)), "&condition");
quit;
%mend insert;
%insert
I am trying to summarize my variables using proc sql and proc freq procedures in a macro.
Here is the code:
%macro des_freq(input= ,vars= );
%let n=%sysfunc(countw(&vars));
%let binary=NO;
%do i = 1 %to &n;
%let values = %scan(&vars, &i);
%if %datatyp(&values)=NUMERIC %then %do;
proc summary data = &input;
output out=x min(&values)=minx max(&values)=maxx;
run;
data _null_;
set x;
if minx = 0 and maxx = 1 then call symputx('binary','YES');
run;
%if &binary = YES %then %do;
proc sql;
select segment_final,
(sum(case when &values = 1 then 1 else 0 end)/ count(*)) * 100 as &values._percent
from &input
group by segment_final;
quit;
%end;
%else %do;
proc freq data =&input;
tables segment_final*&values/nofreq nopercent nocol;
run;
%end;
%end;
%else %do;
proc freq data =&input;
tables segment_final*&values/nofreq nopercent nocol;
run;
%end;
%end;
%mend;
My variables can be numeric or character. If it's numeric, it can 2 more distinct values.
I want % of 1's in a binary variable by segments(hence proc sql) and % of all distinct variables for each segment(hence proc freq).
My first if statement is checking whether the variable if numeric or not and then if its numeric, next few steps is checking if its binary or not. If its binary then execute the proc sql else execute proc freq.
If the variable is character then just execute the proc freq.
I am not able to figure out how to check if my variable is numeric or not. I tried %SYSFUNC(Vartype), %isnum and %DATATYP. None of them seem to work. Please help!!
First you can look into sashelp.vcolumn table to check variables types:
data want(keep=libname memname name type);
set sashelp.vcolumn( where= (libname='SASHELP' and memname='CLASS'));
run;
If you don't want to use vcolumn table, you can use vtype() data step function as #Tom suggest:
data _NULL_;
set &input (obs=1);
call symput('binary',ifc(vtype(&values)='N','YES','NO' ));
run;
I have an example like this:
proc sql;
select dealno into :deal_no
from deal_table;
Now I want to traverse the variable deal_no now containing all dealno in table deal_table but I don't know how to do it.
Another option is add 'separated by' to the sql code, which will add a delimiter to the values. You can then use the SCAN function in a data step or %SCAN in a macro to loop through the values and perform whatever task you want. Example below.
proc sql noprint;
select age into :age separated by ','
from sashelp.class;
quit;
%put &age.;
data test;
do i=1 by 1 while(scan("&age.",i) ne '');
age=scan("&age.",i);
output;
end;
drop i;
run;
If you do
%put &deal_no;
you can see that it only contains the first value of dealno, not all of them.
To avoid that you can do something like this:
proc sql;
create table counter as select dealno from deal_table;
select dealno into :deal_no_1 - :deal_no_&sqlobs
from deal_table;
quit;
%let N = &sqlobs;
%macro loop;
%do i = 1 %to &N;
%put &&deal_no_&i;
%end;
%mend;
%loop; run;
Here's another solution.
proc sql noprint;
select age into :ageVals separated by ' '
from ageData;
quit;
%put &ageVals;
%macro loopAgeVals; %let i = 1; %let ageVal = %scan(&ageVals, &i);
%do %while("&ageVal" ~= "");
%put &ageVal;
%let i = %eval(&i + 1);
%let ageVal = %scan(&ageVals, &i);
%end;
%mend;
%loopAgeVals;
I have a large sas dataset (1.5m obs, ~250 variables) that I need to split into several smaller sas datasets of equal size for batch processing. Each dataset needs to contain all the variables but only a fraction of the obs. What is the fastest way of doing this?
You could do something like the following:
%macro splitds(inlib=,inds=,splitnum=,outid=);
proc sql noprint;
select nobs into :nobs
from sashelp.vtable
where libname=upcase("&inlib") and memname=upcase("&inds");
quit;
%put Number of observations in &inlib..&inds.: &nobs;
data %do i=1 %to &splitnum.;
&outid.&i
%end;;
set &inds.;
%do j=1 %to (&splitnum.-1);
%if &j.=1 %then %do;
if
%end;
%else %do;
else if
%end;
_n_<=((&nobs./&splitnum.)*&j.) then output &outid.&j.;
%end;
else output &outid.&splitnum.;
run;
%mend;
An example call to split MYLIB.MYDATA into 10 data sets named NEWDATA1 - NEWDATA10 would be:
%splitds(inlib=mylib,inds=mydata,splitnum=10,outid=newdata);
Try this. I haven't tested yet, so expect a bug somewhere. You will need to edit the macro call to BATCH_PROCESS to include the names of the datasets, number of new data sets, etc.
%macro nobs (dsn);
%local nobs dsid rc;
%let nobs=0;
%let dsid = %sysfunc(open(&dsn));
%if &dsid %then %do;
%let nobs = %sysfunc(attrn(&dsid,NOBS));
%end;
%else %put Open for dataset &dsn failed - %sysfunc(sysmsg());
%let rc = %sysfunc(close(&dsid));
&nobs
%mend nobs;
%macro batch_process(dsn_in,dsn_out_prefix,number_of_dsns);
%let dsn_obs = &nobs(&dsn_in);
%let obs_per_dsn = %sysevalf(&dsn_obs / &number_of_dsns);
data
%do i = 1 %to &number_of_dsns;
&dsn_out_prefix.&i
%end;
;
set &dsn_in;
drop _count;
retain _count 0;
_count = _count + 1;
%do i = 1 %to &number_of_dsns;
if (1 + ((&i - 1) * &obs_per_dsn)) <= _count <= (&i * &obs_per_dsn) then do;
output &dsn_out_prefix.&i;
end;
%end;
run;
%mend batch_process;
%batch_process( dsn_in=DSN_NAME , dsn_out_prefix = PREFIX_ , number_of_dsns = 5 );