Welch's t-test: Difference between revisions
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(→{{header|R}}: added more test sets, printf function, and state that this is used to benchmark the C program above) |
m (comparison to R) |
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This shows how pvalue can be calculated from any two arrays, using Welch's 2-sided t-test, which doesn't assume equal variance. |
This shows how pvalue can be calculated from any two arrays, using Welch's 2-sided t-test, which doesn't assume equal variance. |
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This is the equivalent of R's |
This is the equivalent of R's<code>t.test(vector1,vector2, alternative="two.sided", var.equal=FALSE)</code> and as such, it is compared against R's pvalues with the same vectors/arrays to show that the differences are very small (here 10^-14). |
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<lang C>#include <stdio.h> |
<lang C>#include <stdio.h> |
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#include <math.h> |
#include <math.h> |
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