Statistical Rethinking '26: Lecture A01
Solutions to the homework assignment.
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Stan '%3e%3cg%20transform='matrix(0.350002,0,0,0.350002,5868.906928,2674.234751)'%3e%3cg%20transform='matrix(1,0,0,1,-1508.333333,-1168.75)'%3e%3cg%20transform='matrix(4.166667,0,0,4.166667,0,0)'%3e%3cpath%20d='M361.453,485.937C162.329,485.937%200.906,377.828%200.906,244.469C0.906,111.109%20162.329,3%20361.453,3C560.578,3%20722,111.109%20722,244.469C722,377.828%20560.578,485.937%20361.453,485.937ZM416.641,97.406C265.289,97.406%20142.594,171.314%20142.594,262.484C142.594,353.654%20265.289,427.562%20416.641,427.562C567.992,427.562%20679.687,377.033%20679.687,262.484C679.687,147.971%20567.992,97.406%20416.641,97.406Z'%20style='fill:rgb(140,140,140);'/%3e%3c/g%3e%3cg%20transform='matrix(4.166667,0,0,4.166667,0,0)'%3e%3cpath%20d='M550,377C550,377%20571.822,383.585%20584.5,390C588.899,392.226%20596.51,396.668%20602,402.5C607.378,408.212%20610,414%20610,414L696,559L557,559.062L492,437C492,437%20478.69,414.131%20470.5,407.5C463.668,401.969%20460.755,400%20454,400L420.974,400L421,558.974L298,559.026L298,152.938L545,152.938C545,152.938%20657.5,154.967%20657.5,262C657.5,369.033%20550,377%20550,377ZM496.5,241.024L422.037,240.976L422,310.026L496.5,310.002C496.5,310.002%20531,309.895%20531,274.877C531,239.155%20496.5,241.024%20496.5,241.024Z'%20style='fill:rgb(64,64,64);'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
R '%3e%3cg%20transform='matrix(2.62,0,0,2.62,5476.682446,2950.142713)'%3e%3cg%20transform='matrix(1,0,0,1,-50,-50)'%3e%3cg%20transform='matrix(4.166667,0,0,4.166667,0,0)'%3e%3cpath%20d='M9.86,2C8.291,2%207,3.291%207,4.86L7,6.54L11.29,6.54C11.68,6.54%2012,7.11%2012,7.5L4.86,7.5C3.291,7.5%202,8.791%202,10.36L2,14.141C2,15.71%203.291,17.001%204.86,17.001L6.04,17.001L6.04,14.321C6.04,14.318%206.04,14.314%206.04,14.311C6.04,12.748%207.327,11.461%208.89,11.461C8.89,11.461%2014.14,11.461%2014.14,11.461C15.72,11.461%2017,10.19%2017,8.61L17,4.86C17,3.291%2015.709,2%2014.14,2L9.86,2ZM9.14,3.61C9.54,3.61%209.86,3.73%209.86,4.32C9.86,4.91%209.54,5.211%209.14,5.211C8.75,5.211%208.43,4.911%208.43,4.321C8.43,3.731%208.75,3.61%209.14,3.61'%20style='fill:rgb(106,106,106);fill-rule:nonzero;'/%3e%3c/g%3e%3cg%20transform='matrix(4.166667,0,0,4.166667,0,0)'%3e%3cpath%20d='M17.959,7L17.959,9.68C17.959,9.683%2017.959,9.686%2017.959,9.689C17.959,11.252%2016.672,12.539%2015.109,12.539C15.109,12.539%209.86,12.539%209.86,12.539C9.857,12.539%209.853,12.539%209.85,12.539C8.287,12.539%207,13.826%207,15.389C7,15.389%207,19.139%207,19.139C7,20.708%208.291,21.999%209.86,21.999L14.14,21.999C15.709,21.999%2016.999,20.709%2017,19.14L17,17.46L12.709,17.46C12.319,17.46%2012,16.89%2012,16.5L19.14,16.5C20.709,16.5%2022,15.209%2022,13.64L22,9.86C22,8.291%2020.709,7%2019.14,7L17.959,7ZM8.32,11.513L8.316,11.517L8.354,11.513L8.32,11.513ZM14.86,18.789C15.25,18.789%2015.57,19.089%2015.57,19.679C15.57,20.068%2015.249,20.389%2014.86,20.389C14.46,20.389%2014.14,20.269%2014.14,19.679C14.14,19.089%2014.46,18.789%2014.86,18.789'%20style='fill:rgb(153,153,153);fill-rule:nonzero;'/%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/g%3e%3c/svg%3e){kind=small}
Python '%3e%3ccircle%20cx='13.497'%20cy='281.63'%20r='9.555'%20fill='%23c62828'/%3e%3ccircle%20cx='36.081'%20cy='281.63'%20r='9.555'%20fill='%237e57c2'/%3e%3ccircle%20cx='24.722'%20cy='262.39'%20r='9.555'%20fill='%23388e3c'/%3e%3c/g%3e%3c/svg%3e){kind=small}
Julia The first exercise from the beginner section introduces the garden of forking data and the concept of the likelihood.
The task stands out among the rest because it felt much more “math”-y and less about statistical modeling to us than the other tasks. That being said, the julia solution also shows how to solve this task using Turing.