Welch's t-test: Difference between revisions
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{{works with|C99}} |
{{works with|C99}} |
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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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The high "n" value ensures roughly |
The high "n" value ensures roughly 6 digits convergence with Simpson's integral approximation. |
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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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Test sets 4 p-value = 0.090773 |
Test sets 4 p-value = 0.090773 |
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Test sets 5 p-value = 0.010751</pre> |
Test sets 5 p-value = 0.010751</pre> |
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=={{header|Racket}}== |
=={{header|Racket}}== |
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{{trans|C}}, producing the same output. |
{{trans|C}}, producing the same output. |
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