Generate a vector from a Poisson distribution correlated with another distribution

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

Usage

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

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
...: unused, reserved for future extensions

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

Rough estimate

Jared E. Knowles

x <- rnorm(1000, 1, 1)
y <- rpoiscor(x, 0.2)
cor(x,y) # very close to 0.2
#> [1] 0.2055424
mean(y) 
#> [1] 2.237
sd(y)   
#> [1] 1.443924