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LabCode/lab_2.sas

+/* ----------------------------------------------------- */
+/* AEDE 6120 */
+/* Lab 2 SAS Basics */
+
+
+* A few things to notice:
+ - remember to put a semicolon after your command
+ - remember to put a RUN after your step
+ - case and format of the code do not matter
+ - two ways to add comments;
+
+
+* lab preparation:
+ - create the 'aede' folder
+ - upload 'CLASS1.csv' and 'CLASS2.xlsx'
+ - create a sas program;
+ 
+
+/* ----------------------------------------------------- */
+
+
+/* Set library path */
+libname aede "/home/u49260161/aede";
+
+
+/* Import data files */
+* example 1: import a csv file as a sas table;
+PROC IMPORT DATAFILE="/home/u49260161/aede/CLASS1.csv"
+	DBMS=csv
+	OUT=aede.class1;
+	GETNAMES=yes;
+RUN;
+
+* example 2: import a xlsx file as a sas table;
+PROC IMPORT DATAFILE="/home/u49260161/aede/CLASS2.xlsx"
+	DBMS=xlsx
+	OUT=aede.class2;
+	GETNAMES=yes;
+RUN;
+
+
+/* Print datasets */
+PROC PRINT DATA=aede.class1; 
+RUN;
+
+
+/* Export data files */
+* export a sas table as a xlsx file;
+PROC EXPORT DATA=aede.class1 OUTFILE="/home/u49260161/aede/class1x.xlsx" 
+	DBMS=xlsx 
+	REPLACE;
+RUN;
+
+
+/* Access SAS tables  */
+DATA work.class1;
+	SET aede.class1;
+RUN;
+
+
+/* Filter rows & select columns */
+DATA work.class1filt;
+	SET aede.class1;
+	WHERE age >= 13 AND sex = 'F';
+RUN;
+
+DATA work.class1keep;
+	SET aede.class1;
+	KEEP name sex age;
+RUN;
+
+DATA work.class1drop;
+	SET aede.class1;
+	DROP sex age;
+RUN;
+
+
+/* Create new variables */
+DATA work.class1newv;
+	SET aede.class1;
+	new_height = height * 2 - 50;
+	new_weight = weight + 20;
+RUN;
+
+
+/* Sort */
+PROC SORT DATA=aede.CLASS1 OUT=work.class1s;
+	BY age name;
+RUN;
+
+PROC SORT DATA=aede.CLASS1 OUT=work.class1s;
+	BY age descending height;
+RUN;
+
+
+/* Merge */
+PROC SORT DATA=aede.CLASS1 OUT=work.sort1;
+	BY Name;
+RUN;
+
+PROC SORT DATA=aede.CLASS2 OUT=work.sort2;
+	BY Name;
+RUN;
+
+DATA aede.class_merge;
+	MERGE sort1 sort2;              *note: 'work' is optional;
+	BY Name;
+RUN;
+
+
+/* Delete */
+PROC DELETE DATA=sort1 sort2;
+RUN;
+
+
+
+
+
+
+
+
+