Journal
NATURE METHODS
Volume 12, Issue 5, Pages 419-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NMETH.3358
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Funding
- Bundesministerium fur Bildung und Forschung (BMBF) project BIOSCAT [05K12YE1]
- European Commission, BioStruct-X [283570]
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Assessing similarity between data sets with the reduced chi(2) test requires the estimation of experimental errors, which, if incorrect, may render statistical comparisons invalid. We report a goodness-of-fit test, Correlation Map (CorMap), for assessing differences between one-dimensional spectra independently of explicit error estimates, using only data point correlations. Using small-angle X-ray scattering data, we demonstrate that CorMap maintains the power of the reduced chi(2) test; moreover, CorMap is also applicable to other physical experiments.
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