OHLC Chart without Rangeslider
Mix.install([
{:plotly_ex, "~> 0.3"},
{:kino, "~> 0.18"},
{:req, "~> 0.5"}
])
Section
Set layout.xaxis.rangeslider: %{visible: false} to remove the default rangeslider that
appears below OHLC (and Candlestick) charts.
alias Plotly.{Figure, Ohlc}
csv =
Req.get!("https://raw.githubusercontent.com/plotly/datasets/master/finance-charts-apple.csv").body
[header | rows] = String.split(csv, "\n", trim: true)
headers = String.split(header, ",")
parsed =
Enum.map(rows, fn row -> Enum.zip(headers, String.split(row, ",")) |> Map.new() end)
dates = Enum.map(parsed, & &1["Date"])
open = Enum.map(parsed, &(elem(Float.parse(&1["AAPL.Open"]), 0)))
high = Enum.map(parsed, &(elem(Float.parse(&1["AAPL.High"]), 0)))
low = Enum.map(parsed, &(elem(Float.parse(&1["AAPL.Low"]), 0)))
close = Enum.map(parsed, &(elem(Float.parse(&1["AAPL.Close"]), 0)))
Figure.new()
|> Figure.add_trace(Ohlc.new(x: dates, open: open, high: high, low: low, close: close))
|> Figure.update_layout(
title: "Apple OHLC — No Rangeslider",
xaxis: %{rangeslider: %{visible: false}}
)
|> Plotly.show()