データの概要
国ごとの相違を距離で表しているクロス表
> dim(countries) [1] 12 12 > names(countries) NULL > str(countries) num [1:12, 1:12] 0 5.58 7 7.08 4.83 2.17 6.42 3.42 2.5 6.08 ... - attr(*, "dimnames")=List of 2 ..$ : chr [1:12] "BEL" "BRA" "CHI" "CUB" ... ..$ : chr [1:12] "BEL" "BRA" "CHI" "CUB" ... > head(countries) BEL BRA CHI CUB EGY FRA IND ISR USA USS YUG ZAI BEL 0.00 5.58 7.00 7.08 4.83 2.17 6.42 3.42 2.50 6.08 5.25 4.75 BRA 5.58 0.00 6.50 7.00 5.08 5.75 5.00 5.50 4.92 6.67 6.83 3.00 CHI 7.00 6.50 0.00 3.83 8.17 6.67 5.58 6.42 6.25 4.25 4.50 6.08 CUB 7.08 7.00 3.83 0.00 5.83 6.92 6.00 6.42 7.33 2.67 3.75 6.67 EGY 4.83 5.08 8.17 5.83 0.00 4.92 4.67 5.00 4.50 6.00 5.75 5.00 FRA 2.17 5.75 6.67 6.92 4.92 0.00 6.42 3.92 2.25 6.17 5.42 5.58 > summary(countries) BEL BRA CHI CUB Min. :0.000 Min. :0.000 Min. :0.000 Min. :0.000 1st Qu.:3.190 1st Qu.:4.980 1st Qu.:4.438 1st Qu.:3.810 Median :5.040 Median :5.540 Median :6.165 Median :6.210 Mean :4.590 Mean :5.152 Mean :5.438 Mean :5.292 3rd Qu.:6.165 3rd Qu.:6.543 3rd Qu.:6.543 3rd Qu.:6.940 Max. :7.080 Max. :7.000 Max. :8.170 Max. :7.330 EGY FRA IND ISR Min. :0.000 Min. :0.000 Min. :0.000 Min. :0.000 1st Qu.:4.790 1st Qu.:3.502 1st Qu.:4.957 1st Qu.:3.795 Median :5.000 Median :5.500 Median :6.040 Median :5.665 Mean :4.979 Mean :4.683 Mean :5.306 Mean :4.877 3rd Qu.:5.770 3rd Qu.:6.232 3rd Qu.:6.210 3rd Qu.:6.232 Max. :8.170 Max. :6.920 Max. :6.420 Max. :6.920 USA USS YUG ZAI Min. :0.000 Min. :0.000 Min. :0.000 Min. :0.000 1st Qu.:2.688 1st Qu.:4.105 1st Qu.:4.312 1st Qu.:4.810 Median :5.295 Median :6.125 Median :5.585 Median :5.625 Mean :4.612 Mean :5.106 Mean :5.056 Mean :5.098 3rd Qu.:6.270 3rd Qu.:6.253 3rd Qu.:6.228 3rd Qu.:6.253 Max. :7.330 Max. :6.920 Max. :6.920 Max. :6.920
