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    Filters a sequence of samples using a direct form IIR filter specified by sets of coefficients. You can use this node to process blocks of continuous data. This node is similar to IIR Filter except that you specify the initial conditions for this node.

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    x

    An array of samples to filter.

    Default: Empty array

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    reverse coefficients

    The reverse coefficients of the filter design.

    This node does not place any restrictions on the coefficient arrays. If both coefficient arrays are empty, the node performs no filtering and returns the input sequence as filtered x.

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    forward coefficients

    The forward coefficients of the filter design.

    Default: Empty array

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    initial x conditions

    The most recent inputs.

    The most recent prior input should be the last element in the array. The number of elements in this array should be one less than the number of elements in the forward coefficients array.

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    initial y conditions

    The most recent outputs.

    The most recent output should be the last element in the array. The number of elements in this array should be one less than the number of elements in the reverse coefficients array.

    Default: Empty array

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    filtered x

    An array of filtered samples.

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    error

    A value that represents any error or warning that occurs when this node executes.

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    final x conditions

    The most recent inputs. You can use final x conditions as initial x conditions on the next call to this node.

    Default: Empty array

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    final y conditions

    The most recent outputs. You can use final y conditions as \initial y conditions on the next call to this node.