Sashelp Data Sets

Fisher (1936) Iris Data

The Sashelp.Iris data set (Fisher, 1936) is widely used for examples of discriminant analysis and cluster analysis. The data are measurements in millimeters of the sepal length, sepal width, petal length, and petal width of 50 iris specimens from each of three species: Iris setosa, I. versicolor, and I. virginica. The following steps display information about the Sashelp.Iris data set and create Figure B.10:

title 'Fisher (1936) Iris Data';
proc contents data=sashelp.Iris varnum;
   ods select position;
run;

title 'The First Five Observations Out of 150';
proc print data=sashelp.Iris(obs=5);
run;

title 'The Iris Species Variable';
proc freq data=sashelp.Iris;
   tables species;
run;

Figure B.10: Fisher (1936) Iris Data

Fisher (1936) Iris Data

Variables in Creation Order
#	Variable	Type	Len	Label
1	Species	Char	10	Iris Species
2	SepalLength	Num	8	Sepal Length (mm)
3	SepalWidth	Num	8	Sepal Width (mm)
4	PetalLength	Num	8	Petal Length (mm)
5	PetalWidth	Num	8	Petal Width (mm)

The First Five Observations Out of 150

Obs	Species	SepalLength	SepalWidth	PetalLength	PetalWidth
1	Setosa	50	33	14	2
2	Setosa	46	34	14	3
3	Setosa	46	36	10	2
4	Setosa	51	33	17	5
5	Setosa	55	35	13	2

The Iris Species Variable

Iris Species
Species	Frequency	Percent	Cumulative Frequency	Cumulative Percent
Setosa	50	33.33	50	33.33
Versicolor	50	33.33	100	66.67
Virginica	50	33.33	150	100.00