如何使用 Altair 更改折线图中的线 colors

Question

I'd like to change the colors of the lines in this line chart but when I created a code to do that, nothing happened. I'd like to change the colors so the lines are green and yellow instead of orange and blue:

This is the code I'm using to design the visual with my attempt at changing the colors that didn't work but still populated this chart:

# team names
domain = ['☘️🍀🇮🇪', '💸🤑💰💵']
# line colors
range_ = ['gold','green']

# creating the line chart
tweet = alt.Chart(ndf).mark_line().encode(
    x='average(datetime)',
    y='tweet_count',
    stroke='team',
    color=alt.Color('team',scale=alt.Scale(domain=domain,range=range_)))

tweet

Answer 1

删除stroke编码或将其设置为使用与color编码相同的范围。

Answer 2

I suggest trying this:

color=alt.Color('team', scale={"range": ["yellow", "orange"]})