These functions give you access to the Student's t distribution. For more information about Fathom's distribution functions, click here.
tDensity(x, df, center, scale) tCumulative(x, df, center, scale) tQuantile(x, df, center, scale) df = degrees of freedom |
The density, cumulative, and quantile functions for Student's t distribution. The df (degrees of freedom) parameter is required. It determines the shape of the distribution; generally, it's one less than the sample size. defaults: center = 0, scale = 1 |
You may also draw random values from this distribution:
randomT(df, center, scale) |
a random value drawn from that distribution. |
Example: Here we see the t (1 degree of freedom) and normal distributions plotted together.
See also statistical functions (for mean( ) and its cousins).