python - Plotly axis shows Datetime as numbers instead of dates

Question

I am plotting my Dataframe using Plotly but for some reason, my Datetime values gets converted numbers instead of getting displayed as letters

    fig.add_trace(go.Scatter(x=df2plt["PyDate"].values,
                         y=df2plt["Data"].values))

标签： pythonpython-3.xpandasplotplotly

Answer 1

如果 df2plt["PyDate"] 已经是日期时间格式：

fig.add_trace(go.Scatter(x=df2plt["PyDate"],
                     y=df2plt["Data"].values))

别的：

fig.add_trace(go.Scatter(x=pd.to_datetime(df2plt["PyDate"]) ,
                     y=df2plt["Data"].values)) 

您可以使用变量格式更改显示：

*format : string, default None strftime 解析时间，例如“%d/%m/%Y”，注意“%f”会一直解析到纳秒。有关选择的更多信息，请参阅 strftime 文档：https ://docs.python.org/3/library/datetime.html#strftime-and-strptime-behavior *