Constructing Life Tables with R

I have been using the package dplyr to handle with data for a while, and I thought I can use it with ease until I was stuck with my homework on contructing a life table. I found spreadsheets (either Excel or Google Spreadsheets) easy for handling this task, but had a hard time dealing with it in R. I think it was due to my unfamiliarity with the...

Read more

數學與我

我從小腦袋就不太靈光,在周圍都是精英的環境下長大,更容易發現這點。尤其在數學上,別人那種迅捷的思維使我意識到那不光是努力可以達到的境界,因此一直以來,我認為數學不好與資質不佳是自己最大的限制。

Read more