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40 lines
810 B
C
40 lines
810 B
C
11 years ago
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#include <stdio.h>
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#include <stdbool.h>
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#include <assert.h>
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#include <math.h>
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double mean(double set[], int set_n) {
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double sum = 0.0;
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for(int i=0; i<set_n; i++) {
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sum += set[i];
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}
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return sum/set_n;
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}
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bool isalmost(double x, double c, double epsilon) {
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assert(epsilon >= 0.0);
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return fabs(x-c) < epsilon;
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}
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int main() {
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// Some data
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double d[] = {7, 8, 5, 1, 6, 2};
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const int d_n = 6;
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double e[] = {-10, 0, 10, 11, 12, 13, 14, 8, 9, 10, 11, 10, 10};
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const int e_n = 13;
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// Some tests
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assert(isalmost(mean(d, d_n), 4.833, 0.001));
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assert(isalmost(mean(e, e_n), 8.307, 0.001));
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// XXX assert(isalmost(median(d, d_n), 5.5, 0.001));
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// XXX assert(isalmost(median(e, e_n), XXX, 0.001));
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// XXX Variance
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// XXX Stddev
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// XXX Range
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// XXX Mode
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// XXX Percentile
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}
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