[英]How Can I impute every column in a dataframe with its respective class mean?
[英]Altair - how to show a dataframe column as label with its respective color
我试图在面积图上显示我从 Dataframe 中选择的列名,如 label,以及使用 Altair 的相应颜色。
问题是每次我这样做时,图表都会消失,我无法根据十六进制代码列表自定义 colors。
有什么办法可以做到这一点?
import altair as alt
import pandas as pd
import os
df = {
'Month': ['Apr', 'May'],
'Status': ['Working', 'Complete'],
'Revenue': [1000, 2000],
'Profit': [500, 600]
}
df = pd.DataFrame(df)
hexList = [
'#002664', '#72BF44', '#EED308', '#5E6A71', '#7C9DBE', '#F47920', '#1C536E', '#2D580C',
]
xSelected = 'Status'
ySelected = ['Revenue']
chartsList = []
chart = alt.Chart(df).mark_area().encode(
x=xSelected,
y=ySelected[0],
#color=alt.Color(f'{xSelected}:N'), ### **==> this gives me the labels I neeed, but no chart is plotted**
color=alt.value(f'{hexList[0]}'), ### **==> this gives me the chart with the color I want, but without the labels I need**
tooltip=ySelected
)
mainDir = os.path.dirname(__file__)
filePath = os.path.join(mainDir, 'altairChart.html')
chart.save(filePath)
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