删除 Plotly 平行坐标图末端的刻度标签

Posted 2023-02-18

【中文标题】删除 Plotly 平行坐标图末端的刻度标签

【英文标题】：Remove tick labels at ends of Plotly parallel coordinates plot

【发布时间】：2021-12-02 18:49:50

【问题描述】：

我想删除此平行坐标图中圈出的数字：

生成此图的代码（取自Plotly Express example）：

import plotly.express as px
df = px.data.iris()
fig = px.parallel_coordinates(df, color="species_id", labels="species_id": "Species",
                "sepal_width": "Sepal Width", "sepal_length": "Sepal Length",
                "petal_width": "Petal Width", "petal_length": "Petal Length", ,
                             color_continuous_scale=px.colors.diverging.Tealrose,
                             color_continuous_midpoint=2)
fig.show()

我尝试查看ticks 的文档，但我无法弄清楚。我对 Plotly 完全陌生。

【参考方案1】：

明确定义

tickvals

https://plotly.com/python/reference/parcoords/ 在图形构造后有更新跟踪，代码如下 图片展示前后

import plotly.express as px
import numpy as np

df = px.data.iris()
fig = px.parallel_coordinates(
    df,
    color="species_id",
    labels=
        "species_id": "Species",
        "sepal_width": "Sepal Width",
        "sepal_length": "Sepal Length",
        "petal_width": "Petal Width",
        "petal_length": "Petal Length",
    ,
    color_continuous_scale=px.colors.diverging.Tealrose,
    color_continuous_midpoint=2,
)
fig.show()
fig.update_traces(
    dimensions=[
        **d, **"tickvals": np.linspace(min(d["values"]), max(d["values"]), 5)
        for d in fig.to_dict()["data"][0]["dimensions"]
    ]
)