2 3 5 6 7 10
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3x + 6y - 5z = 12
x - 3y + 2z = -2
5x - y + 4z = 10
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numbers | ||
---|---|---|
a | 10 | |
b | 20 | |
c | 30 | |
d | 40 |
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numbers | ||
---|---|---|
a | 100 | |
b | 400 | |
c | 900 | |
d | 1600 |
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numbers | floats | |
---|---|---|
a | 10 | 1.5 |
b | 20 | 2.5 |
c | 30 | 3.5 |
d | 40 | 4.5 |
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names | |
---|---|
d | Guido |
a | Felix |
b | Francesc |
c | Yves |
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index:z, numbers: 100, floats: 5.75, names: Henry
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squares | ||
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a | 1 | |
b | 4 | |
c | 9 | |
d | 16 | |
y | 25 |
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numbers 40
squares 11
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# import pandas as pd 라는 가정하에.
dates = pd.date_range(‘2015-1-1’, periods=9, freq=‘M’)
df.index = dates # a와 b를 거쳐서 만들어진 DataFrame 인스턴스의 변수명이 df라고 가정.
df
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import pandas as pd
import pandas.io.data as web
DAX = web.DataReader(name='^GDAXI', data_source='yahoo', start='2000-1-1')
DAX.info()
<class 'pandas.core.frame.DataFrame'> DatetimeIndex: 3873 entries, 2000-01-03 00:00:00 to 2015-03-12 00:00:00 Data columns (total 6 columns): Open 3873 non-null float64 High 3873 non-null float64 Low 3873 non-null float64 Close 3873 non-null float64 Volume 3873 non-null int64 Adj Close 3873 non-null float64 dtypes: float64(5), int64(1) memory usage: 211.8 KB
DAX.head()
Open | High | Low | Close | Volume | Adj Close | |
---|---|---|---|---|---|---|
Date | ||||||
2000-01-03 | 6961.72 | 7159.33 | 6720.87 | 6750.76 | 0 | 6750.76 |
2000-01-04 | 6747.24 | 6755.36 | 6510.46 | 6586.95 | 0 | 6586.95 |
2000-01-05 | 6585.85 | 6585.85 | 6388.91 | 6502.07 | 0 | 6502.07 |
2000-01-06 | 6501.45 | 6539.31 | 6402.63 | 6474.92 | 0 | 6474.92 |
2000-01-07 | 6489.94 | 6791.53 | 6470.14 | 6780.96 | 0 | 6780.96 |
DAX.tail()
Open | High | Low | Close | Volume | Adj Close | |
---|---|---|---|---|---|---|
Date | ||||||
2015-03-06 | 11513.89 | 11600.37 | 11495.20 | 11550.97 | 0 | 11550.97 |
2015-03-09 | 11510.35 | 11586.94 | 11461.86 | 11582.11 | 0 | 11582.11 |
2015-03-10 | 11555.97 | 11577.75 | 11402.67 | 11500.38 | 0 | 11500.38 |
2015-03-11 | 11531.55 | 11822.53 | 11531.55 | 11805.99 | 0 | 11805.99 |
2015-03-12 | 11795.91 | 11830.14 | 11754.90 | 11799.39 | 116256000 | 11799.39 |
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