pyplot 放大 [英] pyplot zooming in

问题描述

我正在尝试从FITS文件中绘制一些数据，我想知道是否有人知道如何专注于绘制轴的某些区域?下面是一些示例代码:

I am trying to plot some data from FITS files and I wanted to know if anyone knows how to focus on certain regions of a plot's axis? Here is some example code:

import pyfits
from matplotlib import pyplot as plt
from matplotlib import pylab
from pylab import *
#Assuming I have my data in the current directory
a = pyfits.getdata('fits1.fits')
x = a['data1'] # Lets assume data1 is the column: [0, 1, 1.3, 1.5, 2, 4, 8]
y = a['data2'] # And data2 is the column: [0, 0.5, 1, 1.5, 2, 2.5, 3]
plt.plot(x,y)

我怎么只能在x轴上绘制从 [1.3到4] 的区域?

How could I only plot the region from [1.3 to 4] in the x-axis?

推荐答案

在限制范围内使用 plt.axis()函数.

Use the plt.axis() function with your limits.

plt.axis([x_min, x_max, y_min, y_max])

其中 x_min ， x_max ， y_min 和 y_max 是两个轴的坐标限制.

where x_min, x_max, y_min, and y_max are the coordinate limits for both axes.

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