qf()R语言中的函数用于计算数值序列在F分布上的分位数函数值。它还创建了 F 分布上的分位数函数的密度图。

用法: qf(x, df1, df2)

参数:
x:数字向量
df:自由度

范例1:

# R Program to compute value of# Quantile Function over F Distribution  # Creating a sequence of x-valuesx <- seq(0, 1, by = 0.2)  # Calling qf() Functiony <- qf(x, df1 = 2, df2 = 3)y

输出:

[1] 0.0000000 0.2405958 0.6085817 1.2630236 2.8860266       Inf

范例2:

# R Program to compute the value of# Quantile Function over F Distribution  # Creating a sequence of x-valuesx <- seq(0, 1, by = 0.02)  # Calling qf() Functiony <- qf(x, df1 = 2, df2 = 3)  # Plot a graphplot(y)

输出: