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Sparklines in Tables

Overview

myIO’s sparkline mode renders compact, axes-free charts at 20px height, ideal for embedding inline in table cells. Enable it with sparkline = TRUE:

myIO(data.frame(x = 1:20, y = cumsum(rnorm(20))), sparkline = TRUE) |>
  addIoLayer("line", label = "trend", mapping = list(x_var = "x", y_var = "y"))

Supported types

df <- data.frame(x = 1:12, y = c(4, 6, 5, 8, 7, 9, 6, 10, 8, 11, 9, 12))

# Line sparkline
myIO(df, sparkline = TRUE) |>
  addIoLayer("line", label = "line", mapping = list(x_var = "x", y_var = "y"))

# Bar sparkline
myIO(df, sparkline = TRUE) |>
  addIoLayer("bar", label = "bars", mapping = list(x_var = "x", y_var = "y"))

# Area sparkline
myIO(df, sparkline = TRUE) |>
  addIoLayer("area", label = "area", mapping = list(x_var = "x", y_var = "y"))

What sparkline mode does

Strips axes, legend, reference lines, and all interactions
Sets margins to 1px
Defaults height to 20px, width to 100%
Only supports line, bar, and area types

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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