Matplotlib stacked bar chart not showing all bars

Question

I will make a stacked bar chart in matplotlib. Somehow it doesnt include all the bar chart that i gave him (there should be like 50 bar charts stacked on each other)

The code:

N=45 #numbers of columns
max_el=50
ind=np.arrange(N)
for bar in range(0,max_el):
   y=[dic[value][bar] for value in dic]
   plt.bar(ind,y,)
plt.show()

note: I used the similar code and same data and made a stacked bar chart with plotly (which worked)

With plotly

With matplotlib

Some of the values of variables are zeros or 0.1. Could that be the problem ?

You are not stacking the bars. Refer to the stacked bar graph example on how to create stacked bars. — ImportanceOfBeingErnest
@ImportanceOfBeingErnest what am i doing wrong ? I cant type all the data maunally, i need to use dics and loops — Nikola Vinko
oh i got it.... with plotly was so much nicer. Now i have to calculate for each graph the "bottom" — Nikola Vinko

Russell Taylor Russell Taylor · Accepted Answer · 2020-06-18T21:48:14

As described in the comments, you need to add a bottoms array that keeps track of how much each should be moved up from the 0 line. Otherwise, they all start plotting a 0 and overplot one another, with the tallest one sticking up to its values and each one hiding those that were plotted before.

Matplotlib stacked bar chart not showing all bars

1 Answers