import pandas as pd
Data
Dva klíčové objekty
DataFrame
- Tabulka
pd.DataFrame({'Yes': [50, 21], 'No': [131, 2]})| Yes | No | |
|---|---|---|
| 0 | 50 | 131 |
| 1 | 21 | 2 |
pd.DataFrame(
{
'Bob': ['I liked it.', 'It was awful.'],
'Sue': ['Pretty good.', 'Bland.']
},
index=['Product A', 'Product B']
) |Bob|Sue| |---|---|---| |Product A|I liked it.|Pretty good.| |Product B|It was awful.|Bland.|
Series
- Single column dataframe
pd.Series([1, 2, 3, 4, 5])0 1 1 2 2 3 3 4 4 5 dtype: int64
pd.Series([30, 35, 40], index=['2015 Sales', '2016 Sales', '2017 Sales'], name='Product A')
2015 Sales 30
2016 Sales 35
2017 Sales 40
Name: Product A, dtype: int64
CSV read
wine_reviews = pd.read_csv("../input/wine-reviews/winemag-data-130k-v2.csv")
velikost
wine_reviews.shape
(129971, 14)
head
wine_reviews.head()
Prvních pět řádků