Matplotlib 用线连接散点图点 - Python
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Matplotlib connect scatterplot points with line - Python
提问by brno792
I have two lists, dates and values. I want to plot them using matplotlib. The following creates a scatter plot of my data.
我有两个列表，日期和值。我想使用 matplotlib 绘制它们。下面创建了我的数据的散点图。
import matplotlib.pyplot as plt
plt.scatter(dates,values)
plt.show()
plt.plot(dates, values)creates a line graph.
plt.plot(dates, values)创建一个折线图。
But what I really want is a scatterplot where the points are connected by a line.
但我真正想要的是一个散点图，其中的点由一条线连接。
Similar to in R:
类似于在 R 中：
plot(dates, values)
lines(dates, value, type="l")
, which gives me a scatterplot of points overlaid with a line connecting the points.
，这给了我一个点的散点图，上面覆盖着一条连接点的线。
How do I do this in python?
我如何在 python 中做到这一点？
采纳答案by Hannes Ovrén
I think @Evert has the right answer:
我认为@Evert 有正确的答案：
plt.scatter(dates,values)
plt.plot(dates, values)
plt.show()
Which is pretty much the same as
这与
plt.plot(dates, values, '-o')
plt.show()
or whatever linestyleyou prefer.
或您喜欢的任何线条样式。
回答by Steve Barnes
For red lines an points
对于红线点
plt.plot(dates, values, '.r-')
or for x markers and blue lines
或用于 x 标记和蓝线
plt.plot(dates, values, 'xb-')
回答by user3756936
In addition to what provided in the other answers, the keyword "zorder" allows one to decide the order in which different objects are plotted vertically. E.g.:
除了其他答案中提供的内容之外，关键字“zorder”允许人们决定垂直绘制不同对象的顺序。例如：
plt.plot(x,y,zorder=1)
plt.scatter(x,y,zorder=2)
plots the scatter symbols on top of the line, while
在行的顶部绘制散点符号，而
plt.plot(x,y,zorder=2)
plt.scatter(x,y,zorder=1)
plots the line over the scatter symbols.
在散点符号上绘制线。
See, e.g., the zorder demo
参见例如zorder 演示
