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Nat Methods. 2015 May;12(5):419-22. doi: 10.1038/nmeth.3358. Epub 2015 Apr 6.

Correlation Map, a goodness-of-fit test for one-dimensional X-ray scattering spectra.

Author information

1
European Molecular Biology Laboratory, Hamburg Outstation, Hamburg, Germany.

Abstract

Assessing similarity between data sets with the reduced χ(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 χ(2) test; moreover, CorMap is also applicable to other physical experiments.

PMID:
25849637
DOI:
10.1038/nmeth.3358
[Indexed for MEDLINE]

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