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Results tagged with correlation
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user 28378
A measure of the degree of association among a pair of variables.
6
votes
2
answers
386
views
What is the famous data set that looks totally different but has similar summary stats?
There is a famous example of a collection of datasets with similar summary statistics like mean, standard deviation etc., whose visual appearances are totally different. It is named after the famous s …
- 369
3
votes
1
answer
3k
views
Instability of one-pass algorithm for correlation coefficient
What should I know about the instability of the Pearson product-moment correlation coefficient? When might I experience problems using this calculation? … I will quote the following Wikipedia article for some background information:
http://en.wikipedia.org/wiki/Pearson_product-moment_correlation_coefficient#Mathematical_properties
The Pearson correlation …
- 369