how can i create these columns in python

Question

I have a dataset like the one below

Date           Price
2017-01-01     100
2017-01-02     187
2017-01-03     183

How can I create a column that gets the previous days info like

Date           Price    Previous_Days_Price
2017-01-01     100      NaN
2017-01-02     187      100
2017-01-03     183      187

Is possible some dates are missing, e.g `2017-01-01`, `2017-01-03`,`2017-01-04`,`2017-01-06`,`2017-01-07`? — jezrael, Nov 25 '17 at 17:38

score 1 · Answer 1 · answered Nov 25 '17 at 17:33

1

df['Price'].shift(1)

answered Nov 25 '17 at 17:33

blacksite

1 Answers1