Compute value of Quantile Chi Square Density in R Programming – qchisq() Function

qchisq() function in R Language is used to compute value of chi square quantile function. It creates a quantile function plot for chi square distribution.

Syntax: qchisq(vec, df)

Parameters:
vec: Vector of x-values
df: Degree of Freedom

Example 1:

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# R program to compute 
# Quantile Chi Square density
  
# Create a vector of x-values
x <- seq(0, 1, by = 0.1)
  
# Calling qchisq() Function
y <- qchisq(x, df = 5)
y

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Output:

 [1] 0.000000 1.610308 2.342534 2.999908 3.655500 4.351460 5.131867 6.064430
 [9] 7.289276 9.236357      Inf

Example 2:

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# R program to compute 
# Quantile Chi Square density
  
# Create a vector of x-values
x <- seq(0, 1, by = 0.02)
  
# Calling qchisq() Function
y <- qchisq(x, df = 5)
  
# Plot a graph
plot(y)

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Output:

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