Retrieves a commonly analyzed data set.
#include <imsls.h>
float *imsls_f_data_sets (int data_set_choice, ..., 0)
The type double function is imsls_d_data_sets.
int
data_set_choice (Input)
Data set indicator. Set data_set_choice = 0
to print a description of all nine data sets. In this case, any optional
arguments are ignored.
|
data_set_choice |
N_observations |
n_variables |
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 |
If data_set_choice ≠ 0, the requested data set is returned. If data_set_choice = 0 or an error occurs, NULL is returned.
#include <imsls.h>
float
*imsls_f_data_sets (int
data_set_choice,
IMSLS_X_COL_DIM, int
x_col_dim,
IMSLS_N_OBSERVATIONS, int
*n_observations,
IMSLS_N_VARIABLES, int
*n_variables,
IMSLS_PRINT_NONE,
IMSLS_PRINT_BRIEF,
IMSLS_PRINT_ALL,
IMSLS_RETURN_USER, float
x[],
0)
IMSLS_X_COL_DIM, int x_col_dim
(Input)
Column dimension of user allocated space.
IMSLS_N_OBSERVATIONS, int
*n_observations (Output)
Number of observations or rows in
the output matrix.
IMSLS_N_VARIABLES, int
*n_variables (Output)
Number of variables or columns in
the output matrix.
IMSLS_PRINT_NONE
No
printing is performed. This option is the default.
IMSLS_PRINT_BRIEF
Rows
1 through 10 of the data set are printed.
IMSLS_PRINT_ALL
All
rows of the data set are printed.
IMSLS_RETURN_USER, float x[]
(Output)
User-supplied array containing the data set.
Function imsls_f_data_sets retrieves a standard data set frequently cited in statistics text books or in this manual. The following tables gives the references for each data set:
|
Data_set_choice |
Reference |
|
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 (1976, p. 204) |
|
9 |
Afifi and Azen (1979, pp. 16-22) |
In this example, imsls_f_data_sets is used to copy the Draper and Smith (1981, Appendix B) data set into x.
#include
<imsls.h>
main()
{
float
*x;
x = imsls_f_data_sets (5,
0);
imsls_f_write_matrix("Draper and Smith, Appendix
B", 13, 5, x, 0);
}
Draper and Smith, Appendix
B
1
2
3
4
5
1
7.0
26.0
6.0
60.0
78.5
2
1.0
29.0
15.0
52.0
74.3
3
11.0 56.0
8.0
20.0
104.3
4
11.0
31.0
8.0
47.0
87.6
5
7.0
52.0
6.0
33.0
95.9
6
11.0
55.0
9.0
22.0
109.2
7
3.0
71.0
17.0
6.0
102.7
8
1.0
31.0
22.0
44.0
72.5
9
2.0
54.0
18.0
22.0
93.1
10
21.0
47.0
4.0
26.0
115.9
11
1.0
40.0 23.0
34.0
83.8
12
11.0
66.0
9.0
12.0
113.3
13
10.0
68.0
8.0
12.0 109.4
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