How do I find the arithmetic mean of a list in Python? For example: [1, 2, 3, 4] 2.5

Apr 23, 2022 · 3 statistics.mean() works on vanilla Python lists. It does not work on numpy.ndarray s. You should use numpy.mean() instead. Also, it looks like accuracy_list is a list containing a one …

Dec 2, 2013 · If you're not using numpy, the obvious way to calculate the arithmetic mean of a list of values is to divide the sum of all elements by the number of elements, which is easily achieved using …

6 What you want is the mean of two arrays (or vectors in math). Since Python 3.4, there is a statistics module which provides a mean() function: statistics.mean (data) Return the sample arithmetic mean …

I am having hard time to figure out how to find min from a list for example somelist = [1,12,2,53,23,6,17] how can I find min and max of this list with defining (def) a function I do not want to use

Mar 20, 2013 · Working on a python assignment and was curious as to what [:-1] means in the context of the following code: instructions = f.readline()[:-1] Have searched on here on S.O. and on Google …

Sep 9, 2022 · Even if it were a numpy array, given that it's a jagged array, it wouldn't benefit from being wrapped in an ndarray anyway, so a list comp would still be the best option, in my opinion. Anyway, …

Jan 27, 2012 · If you skip the end index, like in your question, it would take elements from the start index (x), pick every yth element until it reaches the end of the list if y is positive and beginning of the list if …

Aug 11, 2022 · The way Python indexing works is that it starts at 0, so the first number of your list would be [0]. You would have to print [52], as the starting index is 0 and therefore line 53 is [52].

What does the asterisk mean when there is no argument name? For example in some functions of the class pprint.