将列表和字符串解析为DataFrame标头

Question

My code:

coins = ['dashcoin','litecoin','dogecoin','nxt']
pd.DataFrame(columns=['timestamp',coins])

I need a header with 5 different values, but my method create two, the first time stamp then the second 'coins' all in one header.

timestamp     dashcoin   litecoin   dogecoin    nxt

How can we separate like pd.DataFrame(columns=coins)

Answer 1

You could wrap your string to list with [] and then use + operator with your coins :

res = pd.DataFrame(columns=[['timestamp'] + coins])

In [148]: res
Out[148]:
Empty DataFrame
Columns: [timestamp, dashcoin, litecoin, dogecoin, nxt]
Index: []

Or with one list:

new_coins = ['timestamp'] + coins
res = pd.DataFrame(columns=new_coins)

In [152]: res
Out[152]:
Empty DataFrame
Columns: [timestamp, dashcoin, litecoin, dogecoin, nxt]
Index: []