在 R 编程中计算分布函数的密度 – dunif()函数

R 语言中的dunif()函数用于提供分布函数的密度。

Syntax:
dunif(x, min = 0, max = 1, log = FALSE)

Parameters:
x: represents vector
min, max: represents lower and upper limits of the distribution
log: represents logical value for probabilities

示例 1：

# Create vector of random deviation
u <- runif(20)
  
dunif(u) == u
  
print(dunif(u))

输出：

[1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
[13] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE
[1] 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

示例 2：

# Output to be present as PNG file
png(file = "dunifGFG.png")
  
# Plot density
curve(dunif(x, min = 2, max = 6), 0, 8, ylim = c(0, 0.5),
      ylab = "f(x)", main = "Uniform Density f(x)")
  
# Saving the file
dev.off()

输出：