CODEWITHSUNDEEP
pythonmatplotlibplot
Kartikey Singh
Kartikey Singh

Reputation: 892

Matplotlib showing error while try to use annotate() method?

I am trying to plot views by post (vbyp list) using matplotlib.plt() and using a names list to add text at each point. But, the annotate function keeps show the error :

x, y = xytext
TypeError: 'float' object is not iterable

To rectify it I have used the range() method but it doesn't correct it.

import matplotlib.pyplot as plt

names = ['S','Deuk','Cip','Pubt','Adoct','Vsa','Rener',
'Gols','OYO','Qum','Sre','Mey','Micft',
'Nia','Tco','Texments','Fidty','Jrgan','Adoch','MyKa','Dw','Ba','HL','Nx','Towerch','Uer']
posts = [6,3,4,4,6,3,3,8,7,2,15,4,5,5,2,2,2,5,3,2,2,3,4,1,1,1]
views =[554,1272,257,197,545,170,162,18465,419,107,931,1140,438,15626,72,104,219,336,217,1527,278,122,252,56,62,62]
vbyp = []
for i in range(len(posts)):
    vbyp.append(views[i]/posts[i])
plt.plot(vbyp)
for i in range(len(vbyp)):
    plt.annotate(names[i],vbyp[i])
plt.show()

Without annotation I get an image like : enter image description here

But I want something like this :enter image description here

Upvotes: 0

Views: 589

Answers (1)

Sheldore
Sheldore

Reputation: 39042

There are two possibilities to relate your names with the corresponding values. You will have to choose for your own whichever you like the best.

First: using your method correctly which gives not so good plot. In annotate, you have to specify your string names[i] and an (x,y) coordinate for which you were just providing a single number so far.

fig = plt.figure(figsize=(9,5))    

# Your code here
for i in range(len(vbyp)):
    plt.annotate(names[i],(i, vbyp[i]))

Output

enter image description here

Second : Using names as x-tick labels which generates much better and readable plot.

plt.xticks(range(25), names, rotation=45)

Output

enter image description here

Upvotes: 1

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