pandas DataFrame 上散点图的连接线
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Connect line of scatter plot on pandas DataFrame
提问by rkjt50r983
I'd like to add lines between dots of a scatter plot drawn by pandas. I tried this, but does not work. Can I put lines on a scatter plot?
我想在Pandas绘制的散点图的点之间添加线。我试过这个，但不起作用。我可以在散点图上放线吗？
pd.DataFrame([[1,2],[10,20]]).plot(kind="scatter", x=0, y=1, style="-")
pd.DataFrame([[1,2],[10,20]]).plot.scatter(0,1,style="-")
回答by Neapolitan
A solution is to replot the line on top of the scatter:
一个解决方案是重新绘制散点顶部的线：
df = pd.DataFrame([[1,2],[10,20]])
ax = df.plot.scatter(x=0, y=1, style='b')
df.plot.line(x=0, y=1, ax=ax, style='b')
In this case, forcing points and lines both to be blue.
在这种情况下，强制点和线都为蓝色。
If you don't need the properties of the scatter plot such as value dependent colours and sizes, just use a line plot with circles for the points:
如果您不需要散点图的属性，例如值相关的颜色和大小，只需使用带圆圈的线图作为点：
df.plot.line(x=0, y=1, style='-o')
