The script repeatedly creates a dataset named 'student'. Initially, a DATA step reads data from 'datalines', attempting to process multiple records on a single physical line. A second DATA step overwrites the previous dataset, including a potentially erroneous line in the INPUT statement and providing in-line data, with one line containing multiple records and another with a single one. Then, a PROC PRINT procedure is used to display the current content of the 'student' dataset. Finally, a third DATA step recreates the 'student' dataset, explicitly specifying the lengths of the character variables 'std_id' and 'gender', then reads two distinct records from 'datalines'.
Data Analysis
Type : CREATION_INTERNE
The data used in this script is entirely integrated and internally defined via the `datalines` statement in each `DATA` step. No external data sources (files, databases) or SAS libraries other than implicit system libraries are requested.
1 Code Block
DATA STEP Data
Explanation : Creates the 'student' dataset. It attempts to read comma-delimited data from the `datalines` statement. Variables `std_id`, `name`, `gender` (character), `age`, `height`, `weight` (numeric) are defined. The absence of specific options for reading multiple records per line can lead to incomplete data line reading.
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data student;
infile datalines dlm=",";
input
std_id $
name $
gender $
age
height
weight
;
datalines;
101,ABC,F,23,167,76,102,DEF,M,25,176,87
;
run;
1
DATA student;
2
INFILEDATALINES dlm=",";
3
INPUT
4
std_id $
5
name $
6
gender $
7
age
8
height
9
weight
10
;
11
DATALINES;
12
101,ABC,F,23,167,76,102,DEF,M,25,176,87
13
;
14
RUN;
2 Code Block
DATA STEP Data
Explanation : This DATA step recreates the 'student' dataset, overwriting the previous version. It uses `infile datalines` for input. The line ` @code_sas_json/hsdua2304@gmail.com_SAS_Assignment_1.json` in the `input` statement is a syntax error that will not be correctly interpreted by SAS as an input option. Two data lines are provided, the first potentially creating a partial record due to reading without ` @@`, and the second providing a complete record.
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data student;
infile datalines dlm="," ;
input
std_id $
name $
gender $
age
height
weight
@code_sas_json/hsdua2304@gmail.com_SAS_Assignment_1.json
;
datalines;
101,ABC,F,23,167,76,102,DEF,M,25,176,87
103,GHI,M,25,176,87
;
run;
Explanation : Executes the `PROC PRINT` procedure to display the entire content of the 'student' dataset in the output window. This is a standard method for inspecting data.
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proc print data=student;
run;
1
PROC PRINTDATA=student;
2
RUN;
4 Code Block
DATA STEP Data
Explanation : This final DATA step once again recreates the 'student' dataset. It uses `length` statements to explicitly define the length of character variables `std_id` (3 characters) and `gender` (1 character) before the data is read. Two complete records are read from distinct `datalines`.
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data student;
length std_id $3. gender $1.;
infile datalines dlm=",";
input
std_id $
name $
gender $
age
height
weight
;
datalines;
101,ABC,F,23,167,76
102,DEF,M,25,176,87
;
run;
1
DATA student;
2
LENGTH std_id $3. gender $1.;
3
INFILEDATALINES dlm=",";
4
INPUT
5
std_id $
6
name $
7
gender $
8
age
9
height
10
weight
11
;
12
DATALINES;
13
101,ABC,F,23,167,76
14
102,DEF,M,25,176,87
15
;
16
RUN;
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