## ----setup, message=FALSE, warning=FALSE--------------------------------------
library(epifitter)
library(dplyr)
library(ggplot2)
library(cowplot)
theme_set(cowplot::theme_half_open(font_size = 12))

## -----------------------------------------------------------------------------
set.seed(1)
epi <- sim_logistic(N = 60, y0 = 0.01, dt = 5, r = 0.12, alpha = 0.2, n = 4)

fit_lin_out <- fit_lin(time = epi$time, y = epi$random_y)
knitr::kable(fit_lin_out$stats_all, digits = 4)

## ----fig.alt="Faceted plot comparing logistic and Gompertz fitted curves against observed disease intensity values."----
plot_fit(fit_lin_out, models = c("Logistic", "Gompertz"))

## ----eval=FALSE---------------------------------------------------------------
#  fit_nlin_out <- fit_nlin(
#    time = epi$time,
#    y = epi$random_y,
#    starting_par = list(y0 = 0.01, r = 0.03)
#  )
#  
#  fit_nlin_out$stats_all

## ----eval=FALSE---------------------------------------------------------------
#  epi_partial <- epi %>%
#    mutate(random_y = random_y * 0.8)
#  
#  fit_k <- fit_nlin2(
#    time = epi_partial$time,
#    y = epi_partial$random_y,
#    starting_par = list(y0 = 0.01, r = 0.03, K = 0.7)
#  )
#  
#  fit_k$stats_all

## -----------------------------------------------------------------------------
epi1 <- sim_gompertz(N = 50, y0 = 0.001, dt = 5, r = 0.08, alpha = 0.2, n = 3)
epi2 <- sim_gompertz(N = 50, y0 = 0.002, dt = 5, r = 0.11, alpha = 0.2, n = 3)

multi_epi <- bind_rows(epi1, epi2, .id = "curve")

multi_fit <- fit_multi(
  time_col = "time",
  intensity_col = "random_y",
  data = multi_epi,
  strata_cols = "curve"
)

knitr::kable(head(multi_fit$Parameters), digits = 4)
knitr::kable(head(multi_fit$Data), digits = 4)