plotting with chartreuse - electric car battery degradation / published by https://github.com/dacr/code-examples-manager #417371d2-da5c-4fb7-a266-4377870acc19/41071c27124c96bd6462e867b47b8503b37293c4

chartreuse-battery-degradation.sc

// summary : plotting with chartreuse - electric car battery degradation
// keywords : chartreuse, plotting
// publish : gist
// authors : David Crosson
// license : Apache NON-AI License Version 2.0 (https://raw.githubusercontent.com/non-ai-licenses/non-ai-licenses/main/NON-AI-APACHE2)
// id : 417371d2-da5c-4fb7-a266-4377870acc19
// created-on : 2024-08-21T18:41:28+02:00
// managed-by : https://github.com/dacr/code-examples-manager
// run-with : scala-cli $file
// attachments : data-charging-sessions.csv

// ---------------------
//> using scala "3.4.2"
//> using dep "org.creativescala::chartreuse-core:0.2.0"
// ---------------------

import chartreuse.{*, given}
import doodle.core.{Color, Point}
import chartreuse.layout.*

import java.time.{Instant, ZoneOffset}
import scala.io.Source
import cats.effect.unsafe.implicits.global
import doodle.java2d.*
import doodle.syntax.all.*

case class Record(chargingSessionId: Int, degradation: Double, autonomy: Int, chargeKind: String)

val recordRE = """(\d{4}/\d{2}/\d{2}),(\d+(?:[.]\d+)?),(\d+),(\w*)""".r
val data     =
  Source
    .fromFile("data-charging-sessions.csv")
    .getLines()
    .zipWithIndex
    .collect { case (recordRE(date, degradation, autonomy, kind), index) =>
      Record(index, degradation.toDouble, autonomy.toInt, kind)
    }
    .toList
    .map(record => Point(record.chargingSessionId, record.degradation))

val layout =
  Scatter
    .default[Point]
    .forThemeable(theme =>
      theme
        .withStrokeWidth(3d)
        .withStrokeColor(Themeable.Override(Some(Color.red)))
    )

val plot =
  layout
    .toPlot(data)
    .withPlotTitle("Electric car battery degradation")
    .withXTitle("Charging sessions")
    .withYTitle("Degradation percentage")

val picture = plot.draw(800, 300)

picture.draw()

data-charging-sessions.csv