使用 python 显示和编辑图 x 和 y 轴

Question

if a have two big sets of data, and I want to display it using subplots

instead of having enter image description here

how can I have a better look? like display y 0,30,60,90. and x 0,20,40,60,80,100

fig, ax = plt.subplots()

ax.plot(LIST1, LIST2)

ax.set(xlabel='X', ylabel='Y'      title='chart')
ax.grid()

Answer 1

Please Check the snippet with sample data.

You were displaying strings in the plot and hence you were receiving such an output. I converted your result to float and see the first image, matplotlib itself handles the xlimit and ylimit.

Without using xticks() and yticks()

import matplotlib.pyplot as plt
import numpy as np
lists1= ['12.0', '15.0', '16.2', '16.3', '16.9', '17.5', '18.6', '19.3', '19.4', '20.2', '21.3', '22.9', '23.5', '25.2', '28.5', '30.5', '31.8', '42.5', '43.3', '45.1', '47.8', '60.4', '63.7', '65.8', '67.8', '69.9', '73.1', '76.4', '79.8', '97.8', '99.2', '100.2', '103.3', '103.6', '110.8', '111.2', '101.2', '103.0', '110.1', '112.3', '123.9']
list1=[float(i) for i in lists1]
lists2 =[ '1977', '1978', '1979', '1980', '1981', '1982', '1983', '1984', '1985', '1986', '1987', '1988', '1989', '1990', '1991', '1992', '1993', '1994', '1995', '1996', '1997', '1998', '1999', '2000', '2001', '2002', '2003', '2004', '2005', '2006', '2007', '2008', '2009', '2010', '2011','2012','2013','2014','2015','2016','2017']
list2=[int(i) for i in lists2]
fig, ax = plt.subplots()
ax.plot(list2,list1)
ax.set(xlabel='X', ylabel='Y',title='chart')
plt.show()

After using xticks() as you require year gap of 10

import matplotlib.pyplot as plt
import numpy as np
x=[15,35,24,46,45]
y=[25,53,64,35,75]
fig, ax = plt.subplots()
ax.plot(x,y)
ax.set(xlabel='X', ylabel='Y',title='chart')
plt.xticks(np.arange(1970,2030,10))
plt.show()