情节:如何为类别分配特定的颜色? [英] Plotly: How to assign specific colors for categories?

问题描述

我有一个发电数据的熊猫数据框.因此，它由不同燃料产生的电能组成.我想为特定的燃料分配特定的颜色.在Matplotlib中，通过传递颜色列表(例如

I have a pandas dataframe of electricity generation mix. So it consists of electricity generation by different fuels. I want to assign a specific color to a specific fuel. In Matplotlib, it is convenient to assign a specific color to a specific category by passing a list of colors, e.g.

df.plot(种类=条"，颜色= [红色"，绿色"，黄色"]

df.plot(kind="bar",color=["red","green","yellow"]

我无法使用Plotly为绘图分配相似的颜色.在Plotly中将特定颜色分配给特定类别的最佳方法是什么?

I wasn't able to assign color similarly for plots using Plotly. What would be the best way to assign specific color to specific categories in Plotly?

推荐答案

来自有关颜色序列的文档以绘图方式表示，您应该能够使用参数 color_discrete_sequence 显式定义颜色序列.尝试运行:

From the documentation on color sequences in plotly express, you should be able to explicitly define a color sequence using the parameter color_discrete_sequence. Try running:

fig=px.bar(df1, title="Electricity generation mix of Germany in TwH (2000-2019)", color_discrete_sequence=["black","grey","lightgrey","red","rosybrown","blue","limegreen","yellow","forestgreen"])

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