topic Re: Re writing code in Proc IML in SAS/IML Software and Matrix Computations

Re writing code in Proc IML

Lawongd — Sat, 06 Jul 2019 02:15:45 GMT

Hello I am trying to write this R code in IML is there an help on this

general.d <- function (m, s){
k=length(s)
m1_x = length (m)
sum.s = 0
for (i in 1:k){
sum.s = sum.s+s[i]^2
s_pooled=sqrt(sum.s/k)
}
if (m1_x==1 & k==1){
return (d=m/s)
}
else if (m1_x==2 & k==1){
m_1 = diff(m)
return(d=m_1/s_pooled)
}
else {
m_2 = max(m) - min(m)
return(d_2=m_2/s_pooled)
}
}

general.d <- function (m, s);
k=length(s)
m1_x = length (m)
sum.s = 0
for (i in 1:k);
  sum.s = sum.s+s[i]^2
  s_pooled=sqrt(sum.s/k)

if (m1_x==1 & k==1);
  return (d=m/s); 

else if (m1_x==2 & k==1){
  m_1 = diff(m);
  return(d=m_1/s_pooled);

else {
  m_2 = max(m) - min(m);
  return(d_2=m_2/s_pooled);

run;
quit;

But I get an error code.

What I am doing wrongly I will be glad to receive help

Re: Re writing code in Proc IML

PaigeMiller — Sat, 06 Jul 2019 12:05:34 GMT

So, we don't really need to see your R code. We do need to see your SAS code and the SAS log which contains the error (saying "But I get an error code" is never enough information).

So, please provide the entire SAS log for your IML (not just the error code) by clicking on the {i} icon (this is mandatory) and pasting your SAS log into the window that appears. Do not provide the SAS log any other way.

Re: Re writing code in Proc IML

Ksharp — Sat, 06 Jul 2019 11:44:58 GMT

Post it at IML forum @Rick_SAS might give you a hand .

Re: Re writing code in Proc IML

Rick_SAS — Sat, 06 Jul 2019 13:18:29 GMT

> I am trying to write this in IML is there any help on this?

Yes, there are many resources for learning to program in SAS/IML. Start with "10 tips for learning the SAS/IML language."

You can also go straight to the SAS/IML User's Guide.

Re: Re writing code in Proc IML

Lawongd — Sat, 06 Jul 2019 19:26:44 GMT

 1          OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 72         
 73         proc iml;
 NOTE: IML Ready
 74         start general_d <- function (m, s);
                            _
                            22
                            200
 ERROR 22-322: Syntax error, expecting one of the following: ;, (.  
 
 ERROR 200-322: The symbol is not recognized and will be ignored.
 
 75         k=length(s);
 76         m1_x = length (m);
 77         sum_s = 0;
 78         for (i in 1:k);
            ___
            180
 ERROR 180-322: Statement is not valid or it is used out of proper order.
 
 79           sum_s = sum.s+s[i]^2
                      _____     _
                      22        76
                      201
 ERROR 22-322: Syntax error, expecting one of the following: a name, a quoted string, a numeric constant, a datetime constant, 
               a missing value, (, +, -, [, ^, {.  
 
 ERROR 76-322: Syntax error, statement will be ignored.
 
 ERROR 201-322: The option is not recognized and will be ignored.
 
 79       ! sum_s = sum.s+s[i]^2
                                _
                                22
 ERROR 22-322: Syntax error, expecting one of the following: ;, #, ##, $, &, (|, *, **, +, -, /, //, :, <, <=, <>, =, >, ><, >=, @, 
               [, ^=, `, |, ||.  
 80           s_pooled=sqrt(sum.s/k);
 81         
 82         if (m1_x==1 & k==1)
                     _
                     22
                     76
 ERROR 22-322: Syntax error, expecting one of the following: a name, a quoted string, a numeric constant, a datetime constant, 
               a missing value, +.  
 ERROR 76-322: Syntax error, statement will be ignored.
 83           return (d=m/s);
 84         
 85         else if (m1_x==2 & k==1);
                          _
                          22
                          76
 ERROR 22-322: Syntax error, expecting one of the following: a name, a quoted string, a numeric constant, a datetime constant, 
               a missing value, +.  
 
 ERROR 76-322: Syntax error, statement will be ignored.
 
 86           m_1 = diff(m);
 87           return(d=m_1/s_pooled);
 88         
 89         else
 90           m_2 = max(m) - min(m);
 91           return(d_2=m_2/s_pooled);
 92         run;
 WARNING: Module GENERAL_D definition is left incomplete.
 93         quit;
 NOTE: Exiting IML.
 NOTE: The SAS System stopped processing this step because of errors.
 NOTE: PROCEDURE IML used (Total process time):
       real time           0.00 seconds
       user cpu time       0.00 seconds
       system cpu time     0.00 seconds
       memory              401.75k
       OS Memory           28580.00k
       Timestamp           07/06/2019 07:26:01 PM
       Step Count                        30  Switch Count  0
       Page Faults                       0
       Page Reclaims                     134
       Page Swaps                        0
       Voluntary Context Switches        0
       Involuntary Context Switches      0
       Block Input Operations            0
       Block Output Operations           0
       
 94         
 95         OPTIONS NONOTES NOSTIMER NOSOURCE NOSYNTAXCHECK;
 108

Re: Re writing code in Proc IML

PaigeMiller — Sat, 06 Jul 2019 19:32:43 GMT

Okay, simple question ... there is an interface in PROC IML that allows you to run R code. Are you trying to run your exact R code inside of PROC IML?

Or are you trying to rewrite the R code as native PROC IML code (as your title implies)? You can't simply paste R code into PROC IML and expect it to run. The syntax used by R is completely different than the syntax used by PROC IML.

Re: Re writing code in Proc IML

Lawongd — Sat, 06 Jul 2019 19:57:12 GMT

I am trying to rewrite the R code to Proc IML

Re: Re writing code in Proc IML

arthurcavila — Sat, 06 Jul 2019 20:22:46 GMT

To add on the resources, there is a eLearning training from SAS, "SAS Programming for R Users" with video presentations, demo codes and exercises. One of the topics is on IML and how to call R from IML. It is free.

Re: Re writing code in Proc IML

Lawongd — Sat, 06 Jul 2019 20:33:07 GMT

Thanks