Statistics module

Question

calculating mode using the statistics module in python gives me an error when I use this line of code md = statistics.mode (sample). I can find the mean, variance, etc in a similar way without any issues. any ideas as to why this is failing?

Answer 1

Nonduduzo That is because there is no *unique* value which is the most frequent, in your list.

The mode() method does not handle such situation and raises the StatisticsError. You can handle it with a try/except clause, like print out "There is no unique mode here." for example.

Answer 2

Nonduduzo which Python version do you use? Perhaps it has a different implementation of the method, might be...

Just for reference:
https://docs.python.org/3.4/library/statistics.html#statistics.mode

Answer 3

Full Gamer my code is public.

Answer 4

Kuba Siekierzyński I used the same set of values on my PC and it works but when I try it here on Sololearn it fails

Answer 5

Full Gamer

import statistics

sample = [1,2,3,1,4,1,5,4,3,8,4,10,3]
#how come line 5 generates an error?
md = statistics.mode(sample)
med = statistics.median(sample)
var = statistics.variance(sample)
dev = statistics.stdev(sample)
print("Median = ",med)
print("Variance = ",round(var))
print("Standard deviation = ",round(dev))

Answer 6

I am using python 3