matplotlib axis

Documentation

https://gyazo.com/68fd429e8e4ead6d5d09bfe4a9b9e492

Wiki/Summary

memoring: matplotlib 軸の設定

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Title

adjust vertical position of title

code:python

ax.set_title("title",y=0.85)

Python Matplotlib figure title overlaps axes label when using twiny

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XY axes

Invert

軸を逆転

code:python

ax=gca()

ax.invert_xaxis()

ax.invert_yaxis()

log scale

code:python

ax = gca()

ax.set_xscale('log')

ax.set_yscale('log')

Range

code:python

Erase axis

軸を消す

code:python

ax.axis('off')

Multiple y-axis scales

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Ticks

location of ticks

code:python

import matplotlib.ticker as ticker

xmajorLocator=ticker.FixedLocator(np.arange(-2,3,0.4))

ax.xaxis.set_major_locator( xmajorLocator )

Finds up to a max number of intervals with ticks at nice locations

tickの間隔の個数の最大値を指定する

code:python

import matplotlib.ticker as ticker

ax=plt.gca()

locator=ticker.MaxNLocator(4)

ax.xaxis.set_major_locator(locator)

code:python

plt.yticks(np.arange(-25,80, step=50))

Change tick length and width

code:python

ax.xaxis.set_tick_params(width=2)

code:python

ax.tick_params(axis='x', which='major',length=1,width=1, pad=0.5)

ax.tick_params(axis='y', which='major',length=1,width=1, pad=0.5)

colorbarでも使える

code:python

for line in ax.get_xticklines() + ax.get_yticklines():

line.set_markersize(5)

line.set_markeredgewidth(2)

inside out

tickを外に出す

code:python

for line in ax.get_xticklines() + ax.get_yticklines():

line.set_markersize(-5) # negative values

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Tick lables

Specify digits of tick labels

code:python

import matplotlib.ticker as ticker

ax=plt.gca()

formatter=ticker.FormatStrFormatter('%3.2f')

ax.xaxis.set_major_formatter(formatter)

Using characters for tick labels

tickの位置に文字列

code:python

import matplotlib.ticker as ticker

xmajorLocator=ticker.FixedLocator(np.arange(1,13))

ax.xaxis.set_major_locator(xmajorLocator)

Change tick label size

code:python

ax.xaxis.set_tick_params(width=2)

Erase tick labels

軸の数字を消す

code:python

ax.set_yticklabels([])

ax.set_xticklabels([])

Writing mathematical expressions

font size

code: python

item.set_fontsize(24)

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rcParms

matplotlibの軸や凡例の文字を大きくするなどの設定

code:python

params = {

'font.family' :'serif',

'font.size' :14,

'axes.labelsize' :14,

'xtick.labelsize':14,

'ytick.labelsize':14,

'legend.fontsize':14

}

plt.rcParams.update(params)

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Matplotlib AxesGrid Toolkit

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axes.Axes.set

code:python

matplotlib.axes.Axes.set

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inset figure

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Examples

Create a plot with broken axis

sharing x/y axes (x,y軸の範囲をshareするsubplot)

Matplotlib: Changing the color of an axis - Stack Overflow

code:python

ax.get_xaxis().tick_bottom()

ax.grid(line_style="--",alpha=0.5)

li, = ax.plot(times,t1)

plt.tick_params(axis="both",which="both",bottom="False",top="False"

,labelbottom=True,left=False,right=False,labelleft=True)

https://gyazo.com/d0088d99a398408aa8fe4723cca6f9e4

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See also