#目的：讀入波士頓房屋資料集

#1.載入tensorflow（含keras）等函數庫
import numpy as np
import pandas as pd
import tensorflow as tf

#2..載入波士頓房屋資料集（讀入自己電腦硬碟的csv檔案）
#在colaboratory的python讀入自己的個人電腦硬碟裡的boston_housing.csv
####################################上傳boston_housing.csv
from google.colab import files
uploaded = files.upload()
for fn in uploaded.keys():
  print('User uploaded file "{name}" with length {length} bytes'.format(
      name=fn, length=len(uploaded[fn])))
# 確認boston_housing.csv是否已上載
!ls *.* -l
##########################

#3.把csv檔案讀入成dataframe結構資料（use Pandas to read boston_housing.csv）
df = pd.read_csv("./boston_housing.csv")

#4.印出前面5筆
print(df.head())

#5.印出資料集的size(幾列，幾欄)
print("資料集的size(幾列，幾欄) = ", df.shape)