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python/plotly/plotly.express.line\343\201\247\347\267\232\343\201\256\345\244\252\343\201\225\343\202\222\345\244\211\343\201\210\343\202\213.md
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| 1 | +[Change linewidth in python plotly px figure - Stack Overflow](https://stackoverflow.com/questions/62922491/change-linewidth-in-python-plotly-px-figure) |
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| 2 | + |
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| 3 | +`fig.update_traces`を使う。 |
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| 4 | + |
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| 5 | +``` |
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| 6 | +import plotly.express as px |
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| 7 | + |
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| 8 | +df = px.data.gapminder().query("continent=='Oceania'") |
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| 9 | +fig = px.line(df, x="year", y="lifeExp", color='country') |
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| 10 | + |
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| 11 | +# This styles the line |
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| 12 | +fig.update_traces(line=dict(color="Black", width=0.5)) |
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| 13 | + |
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| 14 | +fig.show() |
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| 15 | +``` |
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