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matplotlib force scientific notation and define exponent

HotFlow answered on July 15, 2021 Popularity 3/10 Helpfulness 2/10

answer matplotlib force scientific notation and define exponent

matplotlib force scientific notation and define exponent

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import numpy as np
import matplotlib.pyplot as plt
import matplotlib.ticker

class OOMFormatter(matplotlib.ticker.ScalarFormatter):
    def __init__(self, order=0, fformat="%1.1f", offset=True, mathText=True):
        self.oom = order
        self.fformat = fformat
        matplotlib.ticker.ScalarFormatter.__init__(self,useOffset=offset,useMathText=mathText)
    def _set_order_of_magnitude(self):
        self.orderOfMagnitude = self.oom
    def _set_format(self, vmin=None, vmax=None):
        self.format = self.fformat
        if self._useMathText:
            self.format = r'$\mathdefault{%s}$' % self.format


x = np.linspace(1,9,9)
y1 = x*10**(-4)
y2 = x*10**(-3)

fig, ax = plt.subplots(2,1,sharex=True)

ax[0].plot(x,y1)
ax[1].plot(x,y2)

for axe in ax:
    axe.yaxis.set_major_formatter(OOMFormatter(-4, "%1.1f"))
    axe.ticklabel_format(axis='y', style='sci', scilimits=(-4,-4))

plt.show()

Popularity 3/10 Helpfulness 2/10 Language python

Source: stackoverflow.com

Tags: exponent matplotlib python scientific-notation

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Contributed on Jul 15 2021

HotFlow

0 Answers Avg Quality 2/10

matplotlib force scientific notation and define exponent

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