topic Re: how to make a copy of rows base on condition in SAS Procedures

how to make a copy of rows base on condition

Mike_Davis — Tue, 03 Jul 2012 18:13:57 GMT

Hello everyone,

In a dataset, I want to copy some rows base on condition,

such as in SAShelp.class,i want make copy of rows whose age is 15,

that means in the following dataset,I want rows 8,14,17,19(Janet,Mary,Ronald,William) ocurr twice(and maybe three times).

Thanks!

Mike

Original dataset:

Obs Name Sex Age Height Weight

1 Alfred M 14 69.0 112.5

2 Alice F 13 56.5 84.0

3 Barbara F 13 65.3 98.0

4 Carol F 14 62.8 102.5

5 Henry M 14 63.5 102.5

6 James M 12 57.3 83.0

7 Jane F 12 59.8 84.5

8 Janet F 15 62.5 112.5

9 Jeffrey M 13 62.5 84.0

10 John M 12 59.0 99.5

11 Joyce F 11 51.3 50.5

12 Judy F 14 64.3 90.0

13 Louise F 12 56.3 77.0

14 Mary F 15 66.5 112.0

15 Philip M 16 72.0 150.0

16 Robert M 12 64.8 128.0

17 Ronald M 15 67.0 133.0

18 Thomas M 11 57.5 85.0

19 William M 15 66.5 112.0

dataset needed:

Obs Name Sex Age Height Weight

Alfred M 14 69.0 112.5

Alice F 13 56.5 84.0

Barbara F 13 65.3 98.0

Carol F 14 62.8 102.5

Henry M 14 63.5 102.5

James M 12 57.3 83.0

Jane F 12 59.8 84.5

Janet F 15 62.5 112.5

Jeffrey M 13 62.5 84.0

John M 12 59.0 99.5

Joyce F 11 51.3 50.5

Judy F 14 64.3 90.0

Louise F 12 56.3 77.0

Mary F 15 66.5 112.0

Philip M 16 72.0 150.0

Robert M 12 64.8 128.0

Ronald M 15 67.0 133.0

Thomas M 11 57.5 85.0

William M 15 66.5 112.0

Re: how to make a copy of rows base on condition

Linlin — Tue, 03 Jul 2012 18:33:42 GMT

Is this what you want?

data class;
set sashelp.class(where=(age=15));
data want;
   set sashelp.class class;
   by name;
proc print;run;
                                            obs    Name       Sex    Age    Height    Weight

                                             1    Alfred      M      14     69.0      112.5
                                             2    Alice       F      13     56.5       84.0
                                             3    Barbara     F      13     65.3       98.0
                                             4    Carol       F      14     62.8      102.5
                                             5    Henry       M      14     63.5      102.5
                                             6    James       M      12     57.3       83.0
                                             7    Jane        F      12     59.8       84.5
                                             8    Janet       F      15     62.5      112.5
                                             9    Janet       F      15     62.5      112.5
                                            10    Jeffrey     M      13     62.5       84.0
                                            11    John        M      12     59.0       99.5
                                            12    Joyce       F      11     51.3       50.5
                                            13    Judy        F      14     64.3       90.0
                                            14    Louise      F      12     56.3       77.0
                                            15    Mary        F      15     66.5      112.0
                                            16    Mary        F      15     66.5      112.0
                                            17    Philip      M      16     72.0      150.0
                                            18    Robert      M      12     64.8      128.0
                                            19    Ronald      M      15     67.0      133.0
                                            20    Ronald      M      15     67.0      133.0
                                            21    Thomas      M      11     57.5       85.0
                                            22    William     M      15     66.5      112.0
                                            23    William     M      15     66.5      112.0

Linlin

Re: how to make a copy of rows base on condition

Astounding — Tue, 03 Jul 2012 18:41:45 GMT

Whether the names are sorted or not, you can do it like this:

data want;

set sashelp.class;

output;

if age=15 then output; /* and repeat this line, if you want an additional copy */

run;

Good luck.

Re: how to make a copy of rows base on condition

Haikuo — Tue, 03 Jul 2012 19:20:22 GMT

The base code was stolen from Astounding: using Macro to generalize your task:

%macro cpy (dname=,var=,i=);

data want;

set &dname;

output;

if age=&var then

do _n_=1 by 1 to &i;

output;

end;

run;

%mend;

%cpy (dname=sashelp.class,var=15,i=2)

Haikuo