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By Charles Flock on 8/22/2013 4:39 PM
We have added a new function, MONOSPLINE, to the XLeratorDB/math 2008 library based on "Monotone Piecewise Cubic Interpolation," by Fritsch, F. N. and R. E. Carlson, SIAM J. Numerical Analysis, Vol. 17, 1980, pp.238-246. In this article we look at how the MONOSPLINE function works on monotonic data and compare it to linear, natural cubic spline, and polynomial interpolation in SQL Server.
By Charles Flock on 8/6/2013 1:50 PM
We have added new functions for calculating the statistics of inter-observer agreement, as well as enhancing existing aggregate functions which calculate descriptive statistics like variance, standard deviation, covariance, etc.

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