Functions for Chi distribution. More...
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Functions | |
double | pdf1d_cum_prob_chi2 (int n_dof, double chi2) |
P(chi<chi2). | |
double | pdf1d_chi2_for_cum_prob (double p, int n, double tol=0.001) |
Returns X such that P(chi<X | dof==n)==p. |
double pdf1d_chi2_for_cum_prob | ( | double | p, |
int | n, | ||
double | tol = 0.001 |
||
) |
Returns X such that P(chi<X | dof==n)==p.
The value of Chi-Squared such that the probability that a random variable drawn from a chi-2 distribution is less than Chi_Squared is p.
p | Target probability |
n | Number of dimensions |
tol | Tolerance of result (default = 0.001) |
Definition at line 8 of file pdf1d_prob_chi2.cxx.
double pdf1d_cum_prob_chi2 | ( | int | n_dof, |
double | chi2 | ||
) |
P(chi<chi2).
Calculates the probability that a value generated at random from a chi-square distribution with given degrees of freedom is less than the value chi2
n_dof | Number of degrees of freedom |
chi2 | Value of chi-squared |
Definition at line 59 of file pdf1d_prob_chi2.cxx.