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Compute Randomly Drawn F Density in R Programming – rf() Function
• Last Updated : 25 Jun, 2020

`rf()` function in R Language is used to compute random density for F Distribution.

Syntax: rf(N, df1, df2)

Parameters:
N: Sample Size
df: Degree of Freedom

Example 1:

 `# R Program to compute random values``# of F Density`` ` `# Setting seed for``# random number generation``set``.seed(``1000``)`` ` `# Set sample size``N <``-` `20`` ` `# Calling rf() Function``y <``-` `rf(N, df1 ``=` `2``, df2 ``=` `3``)``y`

Output:

```   0.2254501 19.1565944  0.1462503  0.1443822  0.5184883  0.9231497
  4.0047848  1.5749135  1.8080354  0.6584719  2.5080273  0.8327536
  0.9125265  7.8437920  4.8880169  0.1858029  0.2296163 12.4537679
  0.4680668 12.6245564
```

Example 2:

 `# R Program to compute random values``# of F Density`` ` `# Setting seed for``# random number generation``set``.seed(``1000``)`` ` `# Set sample size``N <``-` `100`` ` `# Calling rf() Function``y <``-` `rf(N, df1 ``=` `2``, df2 ``=` `3``)`` ` `# Plot a graph``plot(y)`

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