Digest of Essence of Linear Algebra
Greatest thanks to 3Blue1Brown!
Recent Posts
Building GWAVA environment on Ubuntu 16.04
GWAVA, Genome Wide Annotation of VAriants, is a tool aiming to predict the functional impact of non-coding genetic variants. It consists of two parts:
Python: Zip
zip 这个函数，用起来总是没有什么信心……我们上一下 The Python Standard Library 上的示例代码看看（注意：这并非源码，因为现在已经是返回一个 zip 对象了）：
Python: Signature
Just a reminder that we have such objects to inspect the function signatures， as PEP 362 – Function Signature Object indicates.
Python: *expression
Argument Unpacking: *expression and **expression inside function calls
scikit-learn: Pipeline
Pipeline 的作用，见名知意，就是把多个 processor units chain up 起来。Pipeline 要求前 $N-1$ 个 processor units 是 Transformer，最后一个 processor unit 是 Estimator。我们举个例子看看就很好理解了：
Python: Mixin
首先 a Mixin is class to be mixed-in，它在 python 里起到的作用类似于 interface 或者 abstract class，但是又有点微小的差别，我们来看个例子：
ML Terminology
Confusion matrix $\subset$ Contingency table
Python: MySQLdb
1. MySQLdb Installation