为什么我的 Python 散点图不起作用？

发布于 2024-08-12 05:29:07 字数 415 浏览 7 评论 0原文

我使用 pylab 创建了一个非常简单的散点图。

pylab.scatter(engineSize, fuelMile)
pylab.show()

该程序的其余部分不值得发布，因为正是该行给我带来了问题。当我将“散点”更改为“绘图”时，它会绘制数据图表，但每个点都是一条线的一部分，这使得整个事情变得一团糟。我只想要点，而不是线，但我收到一条巨大的错误消息，其结尾为：

  File "C:\Python26\lib\site-packages\numpy\core\fromnumeric.py", line 1643, in amin
    return amin(axis, out)
TypeError: cannot perform reduce with flexible type

原文

I created a very simple scatter plot using pylab.

pylab.scatter(engineSize, fuelMile)
pylab.show()

The rest of the program isn't worth posting, because it's that line that's giving me the problem. When I change "scatter" to "plot" it graphs the data, but each point is part of a line and that makes the whole things a scribbly mess. I just want points, not a line, but I get this huge error message that ends with:

  File "C:\Python26\lib\site-packages\numpy\core\fromnumeric.py", line 1643, in amin
    return amin(axis, out)
TypeError: cannot perform reduce with flexible type

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末蓝 2024-08-19 05:29:07

我敢打赌，engineSize，fuelMile 是刺痛，尝试打印它们，如果是这种情况，您必须将它们转换为浮点数，然后再将它们作为参数传递给 scatter

floatval = float(strval)

I bet engineSize, fuelMile are stings, try printing them, if that is the case, you have to convert them to float before passing them as arguments to scatter

floatval = float(strval)

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好久不见√ 2024-08-19 05:29:07

好的，既然这有效，那么您的输入一定有问题。显然你需要发布更多内容，除非这个“答案”解决了你的问题：

>>> import pylab
>>> pylab.scatter([500, 550, 700, 1100], [5.5, 6.5, 3.1, 9.7])
<matplotlib.collections.RegularPolyCollection object at 0x036F5610>
>>> pylab.show()
(graphing-type stuff ensues)

Okay, so since this works, something must be wrong with your inputs. Clearly you need to post more, unless this "answer" solves your problem:

>>> import pylab
>>> pylab.scatter([500, 550, 700, 1100], [5.5, 6.5, 3.1, 9.7])
<matplotlib.collections.RegularPolyCollection object at 0x036F5610>
>>> pylab.show()
(graphing-type stuff ensues)

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~没有更多了~