## ----include = FALSE----------------------------------------------------------
knitr::opts_chunk$set(
  collapse = TRUE,
  comment = "#>"
)

## ----setup, output=FALSE------------------------------------------------------
library(serosv)

## -----------------------------------------------------------------------------
# ---- estimate real prevalence using Bayesian approach ----
data <- rubella_uk_1986_1987
output <- correct_prevalence(data, warmup = 1000, iter = 4000, init_se=0.9, init_sp = 0.8, study_size_se=1000, study_size_sp=3000)

# check fitted value 
output$info[1:2, ]

# ---- estimate real prevalence using frequentist approach ----
freq_output <- correct_prevalence(data, bayesian = FALSE, init_se=0.9, init_sp = 0.8)

# check info
freq_output$info

## -----------------------------------------------------------------------------
# Plot output of the frequentist approach
plot_corrected_prev(freq_output)

# Plot output of the bayesian approach 
plot_corrected_prev(output)

## -----------------------------------------------------------------------------
plot_corrected_prev(output, freq_output)

# set facet = TRUE to display the confidence or credible intervals for each method
plot_corrected_prev(output, freq_output, facet = TRUE)

## -----------------------------------------------------------------------------
suppressWarnings(
  corrected_data <- farrington_model(
  output$corrected_se,
  start=list(alpha=0.07,beta=0.1,gamma=0.03))
)

plot(corrected_data)

## -----------------------------------------------------------------------------
suppressWarnings(
  corrected_data <- farrington_model(
  freq_output$corrected_se,
  start=list(alpha=0.07,beta=0.1,gamma=0.03))
)

plot(corrected_data)

## -----------------------------------------------------------------------------
suppressWarnings(
  original_data <- farrington_model(
  data,
  start=list(alpha=0.07,beta=0.1,gamma=0.03))
)
plot(original_data)