ML-Numpy

One 、 Four data science libraries

Numpy： Underlying operation

1. Data is composed of matrix , Matrix needs transformation
2. Operate on data , Operate on the matrix

Pandas: Based on the numpy above

1. Preprocessing , Extract data features , Fill in missing values
2. hold numpy Multiple operations combined , It's simpler and more convenient

Matplotlib:

1. Visual display

Seaborn:

1. Visual display
2. hold Matplotlib Multiple operations combined , It's simpler and more convenient