Doxygen Source Code Documentation
randgen.c File Reference
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Functions | |
| void | rand_initialize (long int seedval) |
| float | rand_uniform (float a, float b) |
| float | rand_normal (float mu, float var) |
| void | rand_binormal (float mu, float var, float *n1, float *n2) |
Function Documentation
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Definition at line 75 of file randgen.c. References n1, n2, r, rand_uniform(), and var.
00076 {
00077 float u1, u2;
00078 float r, sigma;
00079
00080
00081 u1 = 0.0;
00082 while (u1 <= 0.0)
00083 {
00084 u1 = rand_uniform (0.0, 1.0);
00085 }
00086 u2 = rand_uniform (0.0, 1.0);
00087
00088 r = sqrt(-2.0*log(u1));
00089 sigma = sqrt (var);
00090
00091 *n1 = mu + r * cos(2.0*PI*u2) * sigma;
00092 *n2 = mu + r * sin(2.0*PI*u2) * sigma;
00093 }
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Definition at line 28 of file randgen.c. Referenced by initialize_program().
00029 {
00030 srand48 (seedval);
00031 }
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Definition at line 50 of file randgen.c. References r, rand_uniform(), and var. Referenced by calc_response().
00051 {
00052 float u1, u2;
00053 float r, n;
00054
00055
00056 u1 = 0.0;
00057 while (u1 <= 0.0)
00058 {
00059 u1 = rand_uniform (0.0, 1.0);
00060 }
00061 u2 = rand_uniform (0.0, 1.0);
00062
00063 r = sqrt(-2.0*log(u1));
00064 n = r * cos(2.0*PI*u2);
00065
00066 return (mu + n * sqrt(var));
00067 }
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Definition at line 39 of file randgen.c. References a. Referenced by markov_array(), permute_array(), poly_field(), rand_binormal(), rand_normal(), resample(), restart(), segment_x_slices(), segment_y_slices(), segment_z_slices(), shuffle_array(), and simplex_initialize().
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