Skip to main content

Plot data from a CSV file

It is quite easy to load a csv file and plot its contents. Let us assume we have some data given as two columns of a CSV file.

data.csv
1,5
2,3
3,7
4,9
5,3

We could load this file via the built-in csv function. However, wes need to deal with two problems:

  • The csv function returns the data as an array of rows (being arrays themselves). However, we want to plot the columns − therefore the data needs to be transposed.
  • The individual numeric values are parsed as strings. We need to convert them to float before plotting.

Both points are addressed with the function lq.load-txt provided by Lilaq.

#import "@preview/lilaq:0.2.0" as lq

#let (x, y) = lq.load-txt(read("data.csv"))

#lq.diagram(
  lq.plot(x, y),
)