ValLeastSquaresSlope ( XValueList ; YValueList ; Xmean ; Ymean )
Calculates the slope of a set of X,Y pairs by least squares fit
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Function definition: (Copy & paste into FileMaker's Edit Custom Function window)
Calculates the slope of a set of X,Y pairs by applying a least squares fit
Note: The ¶-delimited list of X values must have the same ValueCount as the ¶-delimited list of Y values
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