Calculate trend lines and forecast based on seasonal data.
The chart was created with wuct/elm-charts.
elm package install ggb/elm-trendUsage is straightforward:
import Linear
import Seasonal
data =
[ 362, 385, 432, 341, 382, 409, ... ]
-- Create linear trend function
linearTrend = Linear.regression data
-- Seasonal forecast
period = 4
forecastData = Seasonal.forecast periodTake a look at example/SeasonalTest.elm for a more detailed example.
Ideas for future development:
- Implementing ARIMA
- Multivariant regression and other regression types