Last Update: 2/3/2015
Use tinv(t, df) in the command window, for example, type tinv(0.05,15)= in the command window
In addition, Origin also support critical value of other distributions
| Distribution | Labtalk Function |
|---|---|
| Normal distribution | norminv(p) |
| F distribution | finv(p, df1, df2) |
| Beta distribution | betainv(p, alpha, beta) |
| Chi Square distribution | chi2inv(p,df) |
| Gamma distribution | gaminv(p, a, b) |
| Weibull distribution | wblinv(p, a, b) |
| Notes: The functions return the critical value for lower tailed probability. A two-tailed-value can be returned by replacing probablity with (1-probability/2) |
Keywords:critical value, distribution, t, f, beta, chi square, normal, beta, gamma, weibull