AlmostGr - 6 months ago 6
Python Question

# Add a 0 or 1 based on a value in a certain column

I hope anyone can help me with the following. I have a list called: 'List'. And I have a list called X.
Now I would like to check whether the value in the third column of each row in List is smaller than (<) X or equal/bigger than X. If the value is smaller I would like to add a 0 to the 6th column and a 1 if it is equal/bigger. And for each X I would like the answers to be added to the upfollowing columns to List. So in this case there are 4 X values. So as a result 4 columns should be added to List. My code below probably shows I'm quite an amature and I hope you can help me out. Thank you in advance.

``````List = [(3,5,6,7,6),(3,5,3,2,6),(3,6,1,0,5)]
X= [1,4,5,6]

for item in X:
for number in row[3] for row in List:
count = 0
if number < item:
List[5+count].append(0)
count += 1
return List
else:
List[5+count].append(1)
count += 1
return List
return List
``````

``````List = [(3,5,6,7,6),(3,5,3,2,6),(3,6,1,0,5)]
X= [1,4,5,6]

scores = []
for item in List:
scores.append(tuple(map(lambda x: 0 if item[2] < x else 1, X)))

result = []
for item, score in zip(List, scores):
result.append(item + score)

print(result)
# [(3, 5, 6, 7, 6, 1, 1, 1, 1), (3, 5, 3, 2, 6, 1, 0, 0, 0), (3, 6, 1, 0, 5, 1, 0, 0, 0)]
``````