CODEWITHSUNDEEP
pythonmatplotlibhistogram
Mr Squidr
Mr Squidr

Reputation: 143

Pyplot how can I create histogram from averages of multiple lists?

I have a file with data that I'm splitting into three categories. I want to display three different "bins" which all display just one number (average of that category).

import csv
import matplotlib.pyplot as plt
import seaborn as sns

c1 = [1, 1, 1, 3, 3, 3] # average 2
c2 = [8, 12] # average 10
c3 = [20, 30, 40] # average 30 

sns.set(style='ticks')

plt.hist([(sum(c1)/len(c1)), (sum(c2)/len(c2)), (sum(c3)/len(c3))], bins=8)
plt.show()

Now I know my code doesn't work, I just don't know how to set up something like this that would get me wanted result.

To sum up what I want: on x axes c1, c2, c3. On y axes I want c1 to go to average of that list (2 on y axes for c1), for c2 to 10 and for c3 to 30.

Upvotes: 1

Views: 552

Answers (1)

Sheldore
Sheldore

Reputation: 39072

Since you want just the average value for each list, what you need is a bar chart instead of a histogram, with the tick-labels representing c1, c2, c3. Histogram is used to plot a distribution, you need a discrete average bar for each list

import matplotlib.pyplot as plt
import seaborn as sns

c1 = [1, 1, 1, 3, 3, 3] # average 2
c2 = [8, 12] # average 10
c3 = [20, 30, 40] # average 30 

sns.set(style='ticks')

plt.bar(range(3), [(sum(c1)/len(c1)), (sum(c2)/len(c2)), (sum(c3)/len(c3))])
plt.xticks(range(3), ['c1', 'c2', 'c3'])
plt.show()

enter image description here

Upvotes: 1

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