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Violin Plot

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Violin Plots: Definition, Uses, and Interpretation

What is a Violin Plot?

A violin plot is a combination of a box plot and a kernel density plot, showing the probability density of data at different values. The width of the "violin" represents the frequency of data points at that particular value.

Uses of Violin Plots

  • Visualizing the distribution shape of continuous data
  • Comparing distributions across different groups
  • Identifying multimodal distributions
  • Showing data density along with summary statistics

Components of a Violin Plot

  • The outer shape shows the kernel density estimation
  • The internal box plot shows summary statistics
  • Optional points show individual observations or outliers
  • Mean and median markers provide central tendency measures

Interpreting Violin Plots

  • Width indicates the frequency of values in that region
  • Symmetry or asymmetry reveals distribution shape
  • Multiple peaks suggest multimodal distributions
  • Box plot elements show quartiles and outliers
  • Comparing multiple violins shows differences between groups

Related Links

Box Plot Calculator

Histogram Calculator

Scatter Plot Calculator

Descriptive Statistics Calculator

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