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Tips (M vs F) data
The data set (and description) can be downloaded here:
http://stat.ethz.ch/Teaching/Datasets/tips.dat
Description:
Data from Di Cook's "Xgobi Book" page
http://www.public.iastate.edu/~dicook/xgobi-book/
In one restaurant, a foodserver recorded the following data on all
customers he had served during an interval of two and a half months in
early 1990. The restaurant, located in a suburban shopping mall, was
one of a national chain and served a varied menu.
TOTBILL Total bill, including tax, in dollars
TIP Tip in dollars
SEX Sex of person paying the bill (0=male, 1=female)
SMOKER Smoker in the party? (0=no, 1=yes)
DAY 3=Thursday, 4=Friday, 5=Saturday, 6=Sunday
TIME 0=day, 1=night
SIZE Size of the party
Descriptive statistics:
Dataset= tips_MvsF : n= 244 , d= 6
Class1: n= 87
Covariance matrix:
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 64.1474 6.3428 -0.0303 1.7877 0.6991 4.8949
[2,] 6.3428 1.3444 0.0376 0.3091 0.1020 0.6155
[3,] -0.0303 0.0376 0.2382 0.0449 0.0381 -0.0834
[4,] 1.7877 0.3091 0.0449 1.3980 0.5102 0.1312
[5,] 0.6991 0.1020 0.0381 0.5102 0.2433 0.0011
[6,] 4.8949 0.6155 -0.0834 0.1312 0.0011 0.8792
Correlation matrix:
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 1.0000 0.6830 -0.0078 0.1888 0.1770 0.6518
[2,] 0.6830 1.0000 0.0665 0.2254 0.1783 0.5661
[3,] -0.0078 0.0665 1.0000 0.0778 0.1583 -0.1823
[4,] 0.1888 0.2254 0.0778 1.0000 0.8748 0.1184
[5,] 0.1770 0.1783 0.1583 0.8748 1.0000 0.0023
[6,] 0.6518 0.5661 -0.1823 0.1184 0.0023 1.0000
Median: 16.2619 2.7171 0.3531 4.357 0.5909 2.2893
Mean: 18.0569 2.8334 0.3793 4.3678 0.5977 2.4598
MCD-estimated:
MDC-0.975-Mean: 18.1052 2.7735 0 4.2963 0.537 2.5926
MDC-0.750-Mean: 18.1052 2.7735 0 4.2963 0.537 2.5926
MDC-0.500-Mean: 18.1052 2.7735 0 4.2963 0.537 2.5926
Class2: n= 157
Covariance matrix:
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 85.4972 9.2218 0.5925 1.2624 0.5702 5.0281
[2,] 9.2218 2.2174 -0.0148 0.1161 0.0439 0.6480
[3,] 0.5925 -0.0148 0.2376 -0.0539 -0.0025 -0.0502
[4,] 1.2624 0.1161 -0.0539 1.1992 0.3877 0.1767
[5,] 0.5702 0.0439 -0.0025 0.3877 0.1671 0.0565
[6,] 5.0281 0.6480 -0.0502 0.1767 0.0565 0.9139
Correlation matrix:
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 1.0000 0.6698 0.1314 0.1247 0.1509 0.5688
[2,] 0.6698 1.0000 -0.0204 0.0712 0.0721 0.4552
[3,] 0.1314 -0.0204 1.0000 -0.1010 -0.0125 -0.1078
[4,] 0.1247 0.0712 -0.1010 1.0000 0.8661 0.1688
[5,] 0.1509 0.0721 -0.0125 0.8661 1.0000 0.1445
[6,] 0.5688 0.4552 -0.1078 0.1688 0.1445 1.0000
Median: 18.7213 2.9277 0.3091 4.9739 0.8273 2.5249
Mean: 20.7441 3.0896 0.3822 4.9236 0.7898 2.6306
MCD-estimated:
MDC-0.975-Mean: 20.8025 3.0839 0.4576 5 1 2.6441
MDC-0.750-Mean: 20.8025 3.0839 0.4576 5 1 2.6441
MDC-0.500-Mean: 20.8025 3.0839 0.4576 5 1 2.6441
Measures:
Mah.Dist: 0.5488
Mah.Dist-MCD-0.975: 1.6399
Mah.Dist-MCD-0.750: 1.6399
Mah.Dist-MCD-0.500: 1.6399
Zuletzt geändert am 17.02.2013
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