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Generador de una representación gráfica de la matriz de distancias entre candidatos
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require(stats) | |
# Datos | |
candidatos <- c(1, 0, 0, 0, 0, 1, 1, 0, 0, 0.5, 0, 0.5, 0, 0, 0.5, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0.5, 0, 1, 1, 0, 0.5, 1, 0, 0.5, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0.5, 1, 1, 0, 0, 0.5, 0, 0, 1, 0, 0.5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0.5, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1) | |
candidatos <- t(matrix(candidatos, nrow=5, ncol=18)) | |
dimnames(candidatos) <- list(1:18, c("Peñalosa", "López", "Zuluaga", "Ramírez", "Santos")) | |
distancias <- dist(t(candidatos), method = "euclidean", diag = T, upper = T) | |
distancias <- data.matrix(distancias) | |
# Gráfica | |
image(1:5, 1:5, distancias, axes = FALSE, xlab="", ylab="") | |
axis(1, 1:5, dimnames(candidatos)[[2]], cex.axis = .8) | |
axis(2, 1:5, dimnames(candidatos)[[2]], cex.axis = .8, las=2) | |
for (i in 1:5) | |
{ | |
for (j in 1:5) | |
{ | |
txt <- sprintf("%0.1f", distancias[i,j]) | |
text(i, j, txt, cex=1) | |
} | |
} | |
# Centroide: | |
centroide <- rowMeans(candidatos) | |
# Distancias al centroide | |
a <- data.matrix(dist(t(cbind(candidatos,centroide)), diag=T, upper=T)) | |
a[6,1:5] |
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