Fledex.Effect.BellCurve (fledex v0.8.0)

This is an effect that will set the intensity of the LEDs according to a Bell curve distribution.

Options

:cache (default: false): We might want to avoid (except during development) to recalculate the bell curve values in every frame of the effect. This option allows to cache the values. CAUTION: if you dynamically change the effect, you will have to first disable the cache for changes to take effect.
:multiplier (default: 1): The bell curve is normalized, which will result in very weak brightness values. The multiplier allows to boost that the brightness.
:mean (default: count/2): Where the peak of the bell curve is located.
:standard_deviation (default: 5.0): This controls the width of the bell curve. A smaller value result in a sharper peak.
:min (default: 0): This indicates the minimum value on how far we should calculate the bell curve
:max (default: count): This indicates the maximum value on how far we should calculate the bell curve

Calculates the bell curve values for the given count and configuration.

Generates {x, y} points for plotting a bell curve.

Returns the probability density at x for a normal distribution.

@spec calculate_window(integer(), keyword()) :: %{required(integer()) => byte()}

Calculates the bell curve values for the given count and configuration.

@spec points(float(), float(), float(), float(), float()) :: [{float(), float()}]

Generates {x, y} points for plotting a bell curve.

@spec probability_density(float(), float(), float()) :: float()

Returns the probability density at x for a normal distribution.

Fledex.Effect.BellCurve.probability_density(0, 0, 1)
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