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COMFIT
| Fits paired data using one of six common filtering functions. |
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CRVLENGTH
| Computes the length of a curve. |
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CURVEFIT
| Fits multivariate data with a user-supplied function. |
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FUNCT
| Evaluates the sum of a Gaussian and a 2nd-order polynomial and optionally returns the value of its partial derivatives. |
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GAUSS2DFIT
| Fits a 2D elliptical Gaussian equation to rectilinearly gridded data. |
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GAUSSFIT
| Fits the sum of a Gaussian and a quadratic. |
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GRID_TPS
| Uses thin plate splines to interpolate a set of values over a regular 2D grid, from irregularly sampled data values. |
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KRIG2D
| Interpolates set of points using kriging. |
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LADFIT
| Fits paired data using least absolute deviation method. |
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LINFIT
| Fits by minimizing the Chi-square error statistic. |
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LMFIT
| Does a non-linear least squares fit. |
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POLY_FIT
| Performs a least-square polynomial fit. |
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REGRESS
| Computes fit using multiple linear regression. |
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SFIT
| Performs polynomial fit to a surface. |
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SVDFIT
| Multivariate least squares fit using SVD method. |
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TRIGRID
| Interpolates irregularly-gridded data to a regular grid from a triangulation. |