情节:情节表达遵循什么颜色循环? [英] Plotly: What color cycle does plotly express follow?

问题描述

我认为默认颜色循环将是(一些变体)['blue', 'red', 'green', 'purple', 'orange'] 就像在情节下面:

I would think that the default color cycle would be (some variants of) ['blue', 'red', 'green', 'purple', 'orange'] like in the plot below:

情节 1:

代码 1:

import plotly
import plotly.express as px

gapminder = px.data.gapminder()
gapminder2007=gapminder.query("year==2007")
px.scatter(gapminder2007, x='gdpPercap', y='lifeExp', color="continent")

至少 似乎 是循环的顺序，因为从大陆省略 Oceania 会给你这个:

At least that seems to be the order of the cycle since omitting Oceania from the continents will give you this:

现在剩下的颜色的顺序是一样的，除了最后一个橙色的(只是表明颜色的应用不是任意的).

Now the order of the remaining colors are the same except for the last orange looking one (just showing that the application of the colors are not aribtrary).

我认为这可以使用 plotly.colors.DEFAULT_PLOTLY_COLORS 进行检索，这将为您提供:

I thought this would be possibleto retrieve using plotly.colors.DEFAULT_PLOTLY_COLORS which will give you:

['rgb(31, 119, 180)',
 'rgb(255, 127, 14)',
 'rgb(44, 160, 44)',
 'rgb(214, 39, 40)',
 'rgb(148, 103, 189)',
 'rgb(140, 86, 75)',
 'rgb(227, 119, 194)',
 'rgb(127, 127, 127)',
 'rgb(188, 189, 34)',
 'rgb(23, 190, 207)']

但是这些颜色的顺序类似于 ['blue', 'orange', 'green', 'red']...

But those colors are ordered like ['blue', 'orange', 'green', 'red']...

那么，在 px.scatter(gapminder2007, x='gdpPercap',y='lifeExp', color="continent")?

我也尝试在 help(px.colors) 下查看，但这并没有提供太多帮助:

I tried looking under help(px.colors) too, but that didn't give much:

关于 plotly.express 中的模块 plotly.express.colors 的帮助:

Help on module plotly.express.colors in plotly.express:

名字plotly.express.colors

NAME plotly.express.colors

数据DEFAULT_PLOTLY_COLORS = ['rgb(31, 119, 180)', 'rgb(255, 127, 14)', 'rg...PLOTLY_SCALES = {'Blackbody': [[0, 'rgb(0,0,0)'], [0.2, 'rgb(230,0,0)'...absolute_import = _Feature((2, 5, 0, 'alpha', 1), (3, 0, 0, 'alpha', 0...

DATA DEFAULT_PLOTLY_COLORS = ['rgb(31, 119, 180)', 'rgb(255, 127, 14)', 'rg... PLOTLY_SCALES = {'Blackbody': [[0, 'rgb(0,0,0)'], [0.2, 'rgb(230,0,0)'... absolute_import = _Feature((2, 5, 0, 'alpha', 1), (3, 0, 0, 'alpha', 0...

推荐答案

此文档页面涵盖离散颜色序列:https://plot.ly/python/discrete-color/ 并提到默认序列来自活动模板中的 layout.colorway.

This doc page covers discrete color sequences: https://plot.ly/python/discrete-color/ and mentions that the default sequence comes from layout.colorway in the active template.

在名为 plotly 的默认模板中，这是 px.colors.qualitative.Plotly 下可用的序列.

In the default template called plotly this is the sequence available under px.colors.qualitative.Plotly.

这个序列是['#636EFA', '#EF553B', '#00CC96', '#AB63FA', '#FFA15A', '#19D3F3', '#FF6692', '#B6E880','#FF97FF', '#FECB52']

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