Hi all,
#!/usr/bin/env python
import sys
import csv
import numpy as np
import pandas as pd
a= pd.read_csv("s1.csv")
print(a)
size w1 h1
0 512 214 26
1 123 250 34
2 234 124 25
3 334 213 43
4 a45 223 32
5 a12 214 26
I wanted to create a new column by adding the two column values
as follows
a['test'] = a['w1'] + a['h1']
Traceback (most recent call last):
File
"/data/apps/Intel/intelpython35/lib/python3.5/site-packages/pandas/indexes/base.py",
line 2104, in get_loc
return self._engine.get_loc(key)
File "pandas/index.pyx", line 139, in pandas.index.IndexEngine.get_loc
(pandas/index.c:4152)
File "pandas/index.pyx", line 161, in pandas.index.IndexEngine.get_loc
(pandas/index.c:4016)
File "pandas/src/hashtable_class_helper.pxi", line 732, in
pandas.hashtable.PyObjectHashTable.get_item (pandas/hashtable.c:13153)
File "pandas/src/hashtable_class_helper.pxi", line 740, in
pandas.hashtable.PyObjectHashTable.get_item (pandas/hashtable.c:13107)
KeyError: 'w1'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "tt.py", line 16, in <module>
a['test']=a['w1'] + a['h1']
File "pandas/src/hashtable_class_helper.pxi", line 740, in
pandas.hashtable.PyObjectHashTable.get_item (pandas/hashtable.c:13107)
KeyError: 'w1'
Can someone help me what the problem is?
Thank you in advance
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