How do i create a pandas DataFrame from the following list:
ls= \
[['41457', 'PRE', '533', '887', '1/3/1978', '2/1/2008', '[REL]', '217', '197800000003'],\
['41458', 'PRE', '533', '887', '1/3/1978', '2/1/2008', '[REL]', '217', '197800000004'],\
['41460', 'PRE', '780', '887', '1/3/1978', '2/1/2008', '[D/T]', '217', '197800000006'],\
['41461', 'PRE', '780', '887', '1/3/1978', '2/1/2008', '[D/T]', '217', '197800000007'],\
['41462', 'PRE', '645', '887', '1/3/1978', '2/1/2008', '[AGREE]', '217', '197800000008'],\
['41463', 'PRE', '645', '887', '1/3/1978', '2/1/2008', '[AGREE]', '217', '197800000009'],\
['41464', 'PRE', '645', '887', '1/3/1978', '2/1/2008', '[AGREE]', '217', '197800000010'],\
['41465', 'PRE', '645', '887', '1/3/1978', '2/1/2008', '[AGREE]', '217', '197800000011'],\
['41489', 'PRE', '533', '887', '1/3/1978', '2/1/2008', '[REL]', '492', '197800000035']]
and have the first elements '41457', '41458' ... '41489' as the index.
You can just pass the list to the DataFrame
constructor, and set the index using the column name:
In [5]: df = pd.DataFrame(ls).set_index(0)
In [6]: df
Out[6]:
1 2 3 4 5 6 7 8
0
41457 PRE 533 887 1/3/1978 2/1/2008 [REL] 217 197800000003
41458 PRE 533 887 1/3/1978 2/1/2008 [REL] 217 197800000004
41460 PRE 780 887 1/3/1978 2/1/2008 [D/T] 217 197800000006
41461 PRE 780 887 1/3/1978 2/1/2008 [D/T] 217 197800000007
41462 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000008
41463 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000009
41464 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000010
41465 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000011
41489 PRE 533 887 1/3/1978 2/1/2008 [REL] 492 197800000035
Note that the columns are just numbers unless you provide column names (note you are specifying the column name, not the index so it's 'a' now):
In [7]: df = pd.DataFrame(ls, columns=['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i']).set_index('a')
In [8]: df
Out[8]:
b c d e f g h i
a
41457 PRE 533 887 1/3/1978 2/1/2008 [REL] 217 197800000003
41458 PRE 533 887 1/3/1978 2/1/2008 [REL] 217 197800000004
41460 PRE 780 887 1/3/1978 2/1/2008 [D/T] 217 197800000006
41461 PRE 780 887 1/3/1978 2/1/2008 [D/T] 217 197800000007
41462 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000008
41463 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000009
41464 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000010
41465 PRE 645 887 1/3/1978 2/1/2008 [AGREE] 217 197800000011
41489 PRE 533 887 1/3/1978 2/1/2008 [REL] 492 197800000035
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