I need help completing this Gibb's Sampling code in R for both part a$)$ and part b$).$

$($a$)$ Follow the instructions in the provided files to calculate the posterior distribution of team ratings using a uniform prior.

$($b$)$ Modify your code to use a prior where:

P$($S$)=0\mathrm{.}4,$ P$($A$)=0\mathrm{.}3,$ P$($B$)=0\mathrm{.}2,$ P$($C$)=0\mathrm{.}1$

## Complete the following R program by filling in lines labeled $\_\_$FILL IN$\_\_\_$

## Each $\_\_\_$FILL IN$\_\_\_\_$ in this file may correspond to multiple lines.