Вычислить значение кумулятивной функции распределения F в программировании на R - функция pf ()

Опубликовано: 17 Февраля, 2022

pf() function in R Language is used to compute the density of F Cumulative Distribution Function over a sequence of numeric values. It also plots a density graph for F Cumulative Distribution.

Syntax: pf(x, df1, df2)

Parameters:
x: Numeric Vector
df: Degree of Freedom

Example 1:

# R Program to compute 
# Cumulative F Density
  
# Creating a sequence of x-values
x <- seq(1, 30, by = 2)
  
# Calling pf() Function
y <- pf(x, df1 = 2, df2 = 3)
y

Выход:

 [1] 0,5352420 0,8075499 0,8891420 0,9258675 0,9460051 0,9584308 0,9667275
 [8] 0,9725899 0,9769124 0,9802073 0,9827867 0,9848509 0,9865331 0,9879255
[15] 0,9890935

Example 2:

# R Program to compute 
# Cumulative F Density
  
# Creating a sequence of x-values
x <- seq(1, 30, by = 0.2)
  
# Calling pf() Function
y <- pf(x, df1 = 3, df2 = 7)
  
# Plot a graph
plot(y)

Выход: