STATDATA Function

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STATDATA Function

Retrieves commonly analyzed data sets.

Usage

result = STATDATA(choice)

Input Parameters

choice—Data set indicator. See Table 15-4: choice Values for a list of values for choice.

choice Values
Choice	Numberof Rows	Number of Columns	Description of Data Set
1	16	7	Longley
2	176	2	Wolfer sunspot
3	150	5	Fisher iris
4	144	1	Box and Jenkins Series G
5	13	5	Draper and Smith Appendix B
6	197	1	Box and Jenkins Series A
7	296	2	Box and Jenkins Series J
8	100	4	Robinson Multichannel Time Series
9	113	34	Afifi and Azen Data Set A
10	958	10	Tic-Tac-Toe Endgame
11	4601	58	Spambase Data Set
12	690	16	Credit Approval
13	20000	17	Letter Recognition Data
14	366	35	Dermatology Database

Returned Value

result—An array containing the desired data set is returned.

Input Keyword

Double—If present and nonzero, double precision is used.

Discussion

Function STATDATA retrieves a standard data set frequently cited in statistics text books or in this manual. Table 15-5: Standard Data Set References gives the references for each data set:

Standard Data Set References
Choice	References
1	Longley (1967)
2	Anderson (1971, p. 660)
3	Fisher (1936); Mardia et al. (1979, Table 1.2.2)
4	Box and Jenkins (1976, p. 531)
5	Draper and Smith (1981, pp. 629–630)
6	Box and Jenkins (1976, p. 525)
7	Box and Jenkins (1976, pp. 532–533)
8	Robinson (1967, p. 204)
9	Afifi and Azen (1979, pp. 16–22)
10	Tic-Tac-Toe Endgame
11	Spambase Data Set
12	Credit Approval
13	Letter Recognition Data
14	Dermatology Database

Example

In this example, STATDATA is used to copy the Draper and Smith (1981, Appendix B) data set into X.

x = STATDATA(5)

PM, x

This results in the following output:

7.00000      26.0000      6.00000      60.0000      78.5000

1.00000      29.0000      15.0000      52.0000      74.3000

11.0000      56.0000      8.00000      20.0000      104.300

11.0000      31.0000      8.00000      47.0000      87.6000

7.00000      52.0000      6.00000      33.0000      95.9000

11.0000      55.0000      9.00000      22.0000      109.200

3.00000      71.0000      17.0000      6.00000      102.700

1.00000      31.0000      22.0000      44.0000      72.5000

2.00000      54.0000      18.0000      22.0000      93.1000

21.0000      47.0000      4.00000      26.0000      115.900

1.00000      40.0000      23.0000      34.0000      83.8000

11.0000      66.0000      9.00000      12.0000      113.300

10.0000      68.0000      8.00000      12.0000      109.400