12.07.2015 Views

Introducción al pensamiento Bayesiano

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table(y)y0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1713 39 78 82 110 102 119 97 99 76 54 44 32 31 12 8 3 1> freq = table(y)> y = c(0:max(y))> y[1] 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17> probpred = freq/sum(freq)> plot(y, probpred, type="h", xlab="y", ylab="Probabilidadespredictivas")Suponga que se desea resumir la distribución predictiva discreta anterior usando un interv<strong>al</strong>o quecubra <strong>al</strong> menos 90% de la probabilidad. La función en R discint resulta útil para este propósito.

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