CODEWITHSUNDEEP
pythonmatplotlib
F.Lira
F.Lira

Reputation: 653

Plot Y bar from zero and not at the smaller value of list

Any suggestion of how to plot it correctly starting the Y bar with a zero?

using this dictionary:

D = {
    'GCF_000416945.1': '450',
    'GCF_001294115.1': '451',
    'GCF_000245395.1': '416',
    'GCF_002318825.1': '451',
    'GCF_001401215.1': '450',
    'GCF_000935735.1': '450'
}

and these lines:

plt.bar(range(len(D)), D.values(), align='center')  # python 2.x
plt.xticks(range(len(D)), D.keys())

enter image description here

Upvotes: 1

Views: 89

Answers (2)

Ajax1234
Ajax1234

Reputation: 71461

You need to convert all your dictionary values to integers as an error TypeError: unsupported operand type(s) for +: 'int' and 'str' will be raised with the current code. When the latter error is corrected, the code achieves the correct result in Python2:

import matplotlib.pyplot as plt
D = {
'GCF_000416945.1': '450',
'GCF_001294115.1': '451',
'GCF_000245395.1': '416',
'GCF_002318825.1': '451',
'GCF_001401215.1': '450',
'GCF_000935735.1': '450'
}
plt.bar(range(len(D)), map(int, D.values()), align='center')
plt.xticks(range(len(D)), D.keys())

enter image description here

Upvotes: 1

Giorgos Myrianthous
Giorgos Myrianthous

Reputation: 39860

The following line should do the trick: 

plt.ylim(ymin=0)

Upvotes: 0

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