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An experimenter, to test the ideas or theories in mind, prepares her experiment. She excites the sample by a well controlled means. Reactions from the sample are measured by appropriate apparatus. The next step is to compare the recorded data with the theory. The task of comparison is most usually practiced by the method of chi-square (or least squares) fitting. Another application of chi-square fits is in data interpolation/extrapolation. Since chi-square fits are so commonly used by researchers in data analysis, we demonstrate a class which performs a 2-dimensional chi-square fit.
KeywordsMonte Carlo Technique Marquardt Method Monte Carlo Data Trial Parameter Arbitrary Distribution Function
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- A textbook on statistical data analysis is, PR. Bevington, “Data Reduction and Error Analysis for the Physical Sciences”, McGraw-Hill Book Co., New York (1969)Google Scholar