Removes the offset of an input signal X and then scales the result so that the output sequence is in the range [–1:1].


icon

Inputs/Outputs

  • c2ddbl.png X —

    X is the 2D input array.

  • i2ddbl.png Y=(X-offset)/scale —

    Y=(X-offset)/scale is the output array of the same size as X.

  • idbl.png scale —

    scale is the scaling factor.

  • idbl.png offset —

    offset is the offset factor.

  • ii32.png error —

    error returns any error or warning from the VI. You can wire error to the Error Cluster From Error Code VI to convert the error code or warning into an error cluster.

    • You can use this VI to normalize any numerical sequence with the assurance that the range of the output sequence is [–1:1].

    If X is an array of zeros, this VI returns scale as 1, offset as 0, and Y=(X–offset)/scale as an array of zeros.

    Scale 1D

    This VI calculates Y=(X–offset)/scale using the following equations:

    scale = 0.5(max – min) offset = min + scale

    where max denotes the maximum value in X and min denotes the minimum value in X.

    The following equation defines each element of Y.

    Y[i] = (X[i] – offset)/scale

    Scale 2D

    This VI calculates Y=(X-offset)/scale using the following equations:

    scale = 0.5(max - min) offset = min + 0.5 scale

    where max denotes the maximum value in X and min denotes the minimum value in X.

    The following equation defines each element of Y.

    Y[i,j] = (X[i,j] – offset)/scale.