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Created September 9, 2013 16:54
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For this example we will consider the distribution of hepatitis rates for the counties of California. The data are taken from the Department of Health Services of the State of California (1999). Obtained from: http://www.nku.edu/~longa/geomed/ppa/doc/globals/Globals.htm
County X Y Rate
Alameda 195 500 14.4
Alpine 318 560 0.0
Amador 265 550 12.1
Butte 220 630 52.9
Calaveras 280 530 22.6
Colusa 195 598 23.8
Contra Costa 192 515 12.5
Del Norte 100 790 301.5
El Dorado 260 580 32.0
Fresno 320 425 53.9
Glenn 180 630 35.0
Humboldt 90 705 100.5
Imperial 648 56 66.3
Inyo 450 403 29.3
Kern 396 256 41.2
Kings 315 380 21.9
Lake 155 597 39.5
Lassen 270 710 59.2
Los Angeles 436 168 21.0
Madera 315 455 45.0
Marin 175 510 20.2
Mariposa 305 485 10.4
Mendocino 125 602 27.5
Merced 285 470 16.6
Modoc 265 765 59.8
Mono 380 515 31.6
Monterey 212 415 26.6
Napa 185 545 23.8
Nevada 255 610 13.8
Orange 468 112 17.3
Placer 270 595 50.8
Plumas 272 660 34.6
Riverside 600 120 46.5
Sacramento 235 548 43.1
San Benito 220 430 25.0
San Bernadino 584 216 33.7
San Diego 544 52 22.4
San Fransisco 185 503 78.2
San Joaquin 236 520 30.5
San Luis Obispo 272 260 11.8
San Mateo 190 490 26.6
Santa Barbara 300 200 24.4
Santa Clara 202 475 14.8
Santa Cruz 200 450 27.8
Shasta 197 712 197.5
Sierra 275 630 78.4
Siskiyou 180 782 75.9
Solano 192 540 23.6
Sonoma 170 535 24.6
Stanislaus 265 491 26.8
Sutter 210 590 32.6
Tehama 193 680 58.3
Trinity 140 702 75.0
Tulare 365 385 30.3
Tuolumne 303 515 20.7
Ventura 372 176 16.2
Yolo 205 570 30.6
Yuba 228 604 79.8
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