apop_fexact.c File Reference

Defines

• #define i_real   4
• #define i_int   2
• #define dwrk   (equiv)
• #define iwrk   ((int *)equiv)
• #define rwrk   ((float *)equiv)

Enumerations

• enum Rboolean { FALSE = 0, TRUE }

Functions

• int imax2 (int a, int b)
• int imin2 (int a, int b)
• float fmax2 (float a, float b)
• float fmin2 (float a, float b)
• apop_data * apop_test_fisher_exact (apop_data *intab)

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Detailed Description

Fisher's exact test for contingency tables

This file primarily consists of an algorithm from the ACM, fully documented below. The C code below was cut and pasted from the R project. Thanks, guys.

Un-R-ifying modifications Copyright (c) 2006--2009 by Ben Klemens. Licensed under the modified GNU GPL v2; see COPYING and COPYING2.

R version credits: fexact.f -- translated by f2c (version 19971204). Run through a slightly modified version of MM's f2c-clean. Heavily hand-edited by KH and MM.

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Function Documentation

apop_data* apop_test_fisher_exact

(

apop_data *

intab

)

Run the Fisher exact test on an input contingency table.

Returns:

An apop_data set with two rows:
"probability of table": Probability of the observed table for fixed marginal totals.
"p value": Table p-value. The probability of a more extreme table, where `extreme' is in a probabilistic sense.