I think i have the function for mean but i also need to figure out below mean. This what i have so far.
import math
def mean(alist):
belowMean = alist
mean = sum(alist) / len(alist)
if mean <= alist:
belowMean = item
return belowMeanJump to Postitem is undefined. If type of mean is float, then alist > mean as 'list' > 'float'
Jump to PostHold on here. Getting the mean (or average) is a fairly simple thing in and of itself:
import math def mean(*alist): return sum(alist) / float(len(alist))What you're doing doesn't seem to be aimed at just getting the mean of a list of values, however. What is
item is undefined. If type of mean is float, then alist > mean as 'list' > 'float'
I am still having trouble with this problem
Hold on here. Getting the mean (or average) is a fairly simple thing in and of itself:
import math
def mean(*alist):
return sum(alist) / float(len(alist))What you're doing doesn't seem to be aimed at just getting the mean of a list of values, however. What is item for, and just what should this function of yours return?
after i find the mean , i need to find the numbers that is under mean
Add some swear words. That will make it mean. Also, add some print statements so you can see what the program is doing. And if you can not complete the problem, try it another way. Perhaps computing the mean by adding each element of the list to a total field, via a for loop. Obviously you do not understand what this code is doing so staring at it will not help; a different method may.
def mean(alist):
belowMean = alist
mean = sum(alist) / len(alist)
print "I am mean, GRRRRR", mean
print "comparing for <=", mean, "with", alist
if mean <= alist:
belowMean = item
return belowMeanThis may be what you want, to return a list of items below the mean.
def mean(alist):
belowMean = []
mean = sum(alist) / len(alist)
for item in alist:
if item<mean:
belowMean.append(item)
return belowMeanI keep getting meanBelow not defined
import math
def mean(alist):
meanBelow =[]
mean = sum(alist) / len(alist)
for item in alist:
if item < mean :
meanBelow.append(item)
return meanBelowOdd... the code as given works fine on my system, in both the 2.6 and 3.0 interpreters. What version of Python are you using?
You might want to try using list() instead of [] when initializing meanBelow, as that's a little more explicit, but they both should work the same way in any version of the language I know of.
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