20/05/06 15:58:11 RG00+xls.net
>>458
ベータ分布の理論値
> HDInterval::hdi(qbeta,shape1=5,shape2=8)[1:2]
lower upper
0.1406542 0.6377277
> 5/(5+8) # mean
[1] 0.3846154
> (5-1)/(5-1+8-1) # mode
[1] 0.3636364
20/05/06 15:58:11 RG00+xls.net
>>458
ベータ分布の理論値
> HDInterval::hdi(qbeta,shape1=5,shape2=8)[1:2]
lower upper
0.1406542 0.6377277
> 5/(5+8) # mean
[1] 0.3846154
> (5-1)/(5-1+8-1) # mode
[1] 0.3636364