[Matplotlib-users] Does xticks start marking from 0 only?

Sreyan Chakravarty sreyan32 at gmail.com
Sat Sep 7 03:21:39 EDT 2019


Given the code:

plt.axis([-5, 105, 0, 5])                  # x-axis from -5 to 105,
                                           # y-axis from 0 to 5

plt.xticks([10 * i for i in range(11)])

I see xticks only marks from 0, where as the axis starts from -5.

So does xticks only start marking from 0 even though the x-axis starts from
-5 ?

Full Code:

from matplotlib import pyplot as plt
from collections import Counter

grades = [83, 95, 91, 87, 70, 0, 85, 82, 100, 67, 73, 77, 0]

# Bucket grades by decile, but put 100 in with the 90s
histogram = Counter(min(grade // 10 * 10, 90) for grade in grades)

plt.bar([x + 5 for x in histogram.keys()],  # Shift bars right by 5
        histogram.values(),                 # Give each bar its correct
height
        10,                                 # Give each bar a width of 10
        edgecolor=(0, 0, 0))                # Black edges for each bar

plt.axis([-5, 105, 0, 5])                  # x-axis from -5 to 105,
                                           # y-axis from 0 to 5

#xticks takes the highest value in the list given and then
plt.xticks([10 * i for i in range(11)])    # x-axis labels at 0, 10, ...,
100
plt.xlabel("Decile")
plt.ylabel("# of Students")
plt.title("Distribution of Exam 1 Grades")
plt.show()

-- 
Regards,
Sreyan Chakravarty
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