Skip to contents

Generate a vector from a Gamma distribution correlated with another distribution

rgammacor.Rd

Allow user to draw from a Gamma distribution correlated with a user specified vector

Usage

rgammacor(x, rho, na.rm = FALSE)

Arguments

x

variable to draw from

rho

correlation coefficient between x and result of function

na.rm

a logical indicating whether to fit the distribution excluding missing values or to fail on missing values

Value

a vector of the same length as x drawn from a normal distribution correlated with x at the level of rho

Details

Rough estimate

Author

Jared E. Knowles

Examples

x <- rnorm(1000)
y <- rgammacor(x, 0.2)
#> Warning: NaNs produced
#> Warning: NaNs produced
#> Warning: NaNs produced
#> Warning: NaNs produced
#> Warning: NaNs produced
#> Warning: NaNs produced
#> Warning: NaNs produced
#> Warning: NaNs produced
cor(x,y) # very close to 0.2
#> [1] 0.2159153
mean(y) 
#> [1] 0.5108121
sd(y)  
#> [1] 0.3584718