phk 的 ministat

Facebook 上看到朋友貼的統計分析小工具:「A small tool to do the statistics legwork on benchmarks etc.」,看了一下原來是 phk 寫的,後來被拉出來獨立跑...

從兩個檔案讀取兩組數列,然後用 Student's t-test 分析的小工具,在 manpage 裡面可以看到說明:

Specify desired confidence level for Student's T analysis. Possible values are 80, 90, 95, 98, 99 and 99.5 %

雖然說有些人不喜歡 Student's t-test 被濫用,不過畢竟還是一套合理的數學方法,在分析的時候可以快速的判斷...

翻了一下發現 Ubuntu 也有得裝:「Ubuntu – Package Search Results -- ministat」。


禁止這類變相的羞辱行為:「New Mexico Outlaws School ‘Lunch Shaming’」。

In some schools, children are forced to clean cafeteria tables in front of their peers to pay the debt. Other schools require cafeteria workers to take a child’s hot food and throw it in the trash if he doesn’t have the money to pay for it.


On Thursday, Gov. Susana Martinez signed the Hunger-Free Students’ Bill of Rights, which directs schools to work with parents to pay their debts or sign up for federal meal assistance and puts an end to practices meant to embarrass children. It applies to public, private and religious schools that receive federal subsidies for students’ breakfasts and lunches.