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Cloud data
The data set (and description) can be downloaded here:
http://lib.stat.cmu.edu/datasets/cloud
Description:
These data are those collected in a cloud-seeding experiment in Tasmania
between mid-1964 and January 1971. Their analysis, using regression
techniques and permutation tests, is discussed in:
Miller, A.J., Shaw, D.E., Veitch, L.G. & Smith, E.J. (1979).
`Analyzing the results of a cloud-seeding experiment in Tasmania',
Communications in Statistics - Theory & Methods, vol.A8(10),
1017-1047.
The rainfalls are period rainfalls in inches. TE and TW are the east and
west target areas respectively, while NC, SC and NWC are the corresponding
rainfalls in the north, south and north-west control areas respectively.
S = seeded, U = unseeded.
PERIOD SEEDED SEASON TE TW NC SC NWC
Descriptive statistics:
Dataset= cloud : n= 108 , d= 7
Class1: n= 54
Covariance matrix:
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,] 3424.5185 -1.7275 2.1427 7.7443 -3.3022 6.6745 0.9264
[2,] -1.7275 1.3836 -0.0327 -0.1096 0.0818 -0.0302 0.1455
[3,] 2.1427 -0.0327 0.9828 1.1891 0.8664 0.7452 1.1012
[4,] 7.7443 -0.1096 1.1891 2.4658 1.1670 1.2356 2.2527
[5,] -3.3022 0.0818 0.8664 1.1670 1.4266 0.5926 1.6126
[6,] 6.6745 -0.0302 0.7452 1.2356 0.5926 0.7859 1.0262
[7,] 0.9264 0.1455 1.1012 2.2527 1.6126 1.0262 2.6346
Correlation matrix:
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,] 1.0000 -0.0251 0.0369 0.0843 -0.0472 0.1287 0.0098
[2,] -0.0251 1.0000 -0.0280 -0.0594 0.0583 -0.0290 0.0762
[3,] 0.0369 -0.0280 1.0000 0.7638 0.7317 0.8479 0.6843
[4,] 0.0843 -0.0594 0.7638 1.0000 0.6222 0.8876 0.8838
[5,] -0.0472 0.0583 0.7317 0.6222 1.0000 0.5597 0.8318
[6,] 0.1287 -0.0290 0.8479 0.8876 0.5597 1.0000 0.7132
[7,] 0.0098 0.0762 0.6843 0.8838 0.8318 0.7132 1.0000
Median: 106.0077 2.243 0.9755 1.6751 1.3588 0.9837 1.7152
Mean: 100.4815 2.4444 1.1506 2.0013 1.3259 1.1543 2.025
MCD-estimated:
MDC-0.975-Mean: 95.1818 2.303 0.7521 1.5261 0.9348 0.7427 1.6064
MDC-0.750-Mean: 94.5 2.375 0.7191 1.4816 0.9816 0.7034 1.6281
MDC-0.500-Mean: 95.1818 2.303 0.7521 1.5261 0.9348 0.7427 1.6064
Class2: n= 54
Covariance matrix:
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,] 3432.9434 -1.8113 18.4527 25.5788 15.2872 11.7717 16.0980
[2,] -1.8113 1.3836 0.1502 0.0746 0.5652 0.0632 0.6668
[3,] 18.4527 0.1502 1.3460 1.3811 1.6980 0.9102 1.5031
[4,] 25.5788 0.0746 1.3811 2.1683 1.7160 1.0020 2.0032
[5,] 15.2872 0.5652 1.6980 1.7160 2.6452 1.0344 2.3480
[6,] 11.7717 0.0632 0.9102 1.0020 1.0344 0.8150 1.0018
[7,] 16.0980 0.6668 1.5031 2.0032 2.3480 1.0018 2.6913
Correlation matrix:
[,1] [,2] [,3] [,4] [,5] [,6] [,7]
[1,] 1.0000 -0.0263 0.2715 0.2965 0.1604 0.2225 0.1675
[2,] -0.0263 1.0000 0.1100 0.0431 0.2954 0.0595 0.3456
[3,] 0.2715 0.1100 1.0000 0.8085 0.8999 0.8690 0.7898
[4,] 0.2965 0.0431 0.8085 1.0000 0.7165 0.7537 0.8292
[5,] 0.1604 0.2954 0.8999 0.7165 1.0000 0.7045 0.8800
[6,] 0.2225 0.0595 0.8690 0.7537 0.7045 1.0000 0.6764
[7,] 0.1675 0.3456 0.7898 0.8292 0.8800 0.6764 1.0000
Median: 106.592 2.2488 0.9728 1.6491 1.2246 1.0801 1.7097
Mean: 100.6667 2.4444 1.3146 2.0915 1.6869 1.25 2.3607
MCD-estimated:
MDC-0.975-Mean: 95.8947 2.3947 0.8255 1.6653 1.0587 0.93 1.7074
MDC-0.750-Mean: 102.1842 2.3158 0.8455 1.6861 0.9955 0.935 1.645
MDC-0.500-Mean: 99.3333 2.4103 0.8962 1.7531 1.1728 0.9944 1.8621
Measures:
Mah.Dist: 0.3628
Mah.Dist-MCD-0.975: 0.5511
Mah.Dist-MCD-0.750: 0.5555
Mah.Dist-MCD-0.500: 0.5733
Zuletzt geändert am 17.02.2013
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