Line plots

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Richie Cotton

Data Evangelist at DataCamp

Worldwide COVID-19 coronavirus cases

line-covid19-all-pts.png

line-covid19-all-line.png

1 https://github.com/RamiKrispin/coronavirus
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When should you use a line plot?

  1. You have two continuous variables.
  2. You want to answer questions about their relationship.
  3. Consecutive observations are connected somehow.

Usually, but not always, the x-axis is dates or times.

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Comparing multiple lines

line-covid19-is-mainland-china.png

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Trend lines

line-covid19-mainland-china-trend-lin.png

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Trend lines + log scale

line-covid19-not-mainland-china-trend-lin.png

line-covid19-not-mainland-china-trend-exp.png

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Time x-axis doesn't always imply line plot

scatter-hip-hop.png

1 https://blog.datawrapper.de/best-hip-hop-songs-of-all-time-visualized
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Time x-axis doesn't always imply line plot

scatter-hip-hop-winner.png

1 https://blog.datawrapper.de/best-hip-hop-songs-of-all-time-visualized
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Time x-axis doesn't always imply line plot

line-swiss-juvenile-vs-time.png

1 https://opendata.swiss/en/dataset/statistik-der-jugendstrafrechtspflege-des-kantons-zuerich/resource/41430d20-d449-4a9b-bf91-3f9a16c9f229
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Let's practice!

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