Create a PPV matrix helper function
.createPPVmatrix(
Min_Prevalence = 1,
Max_Prevalence = 1000,
Sensitivity = 100,
Min_FP = 0,
Max_FP = 10,
steps_matrix = 100
)
[x] out of y prevalence of disease
x out of [y] prevalence of disease
Sensitivity of test
Minimum False Positive ratio
Maximum False Positive ratio
How big the matrix should be (probably better to leave as it is: 100)
A DF called PPV