I have collected a list of lists, each list representing data from a single day. I need to find the SUM of these to calculate the total volume each day. I can only seem to add together each list, not an individual lists data.
Provides the total of all the lists, not each individual lists total.
for ele in range(0, len(y_pred)):
total = total + y_pred[ele]
print (total)
Expected 18 outputs, each lists sum, not one output with a sum of everything.
First of all, you don't need to use this pattern in Python:
for ele in range(0, len(y_pred)): # let's not use "ele" as a var name, btw. confusing
total = total + y_pred[ele]
because you can just write:
for element in y_pred:
total = total + element
Anyway, you could use map as another poster suggested, but the simplest way is to just extend your existing pattern. Since you have a list within a list, you have two lists to iterate through:
for sub_list in mega_list:
for element in sub_list:
total += element