library(ratesci)
context("Laud 2017 Examples")

alpha <- 0.05
x1hkp <- c(12, 19, 5)
x2hkp <- c(1, 22, 0)
n1hkp <- c(16, 29, 56)
n2hkp <- c(16, 30, 29)

x1g <- 5
x2g <- 0
n1g <- 56
n2g <- 29

if (FALSE) {
  diffBinconf.meta <- function(x1, n1, x2, n2, level = 0.95, weight = "MH", incr = 0.5, addincr = F, MH.exact = T, hakn = F, contrast = "RD", distrib = "bin") {
    if (hakn == T) {
      random <- T
      weight <- "Inverse"
    }
    if (distrib == "bin") {
      meta <- metabin(event.e = x1, n.e = n1, event.c = x2, n.c = n2, sm = contrast, backtransf = T, level = level, level.comb = level, method = weight, warn = T, addincr = addincr, incr = incr, MH.exact = MH.exact, hakn = hakn, allstudies = F)
    } else if (distrib == "poi") {
      meta <- metainc(event.e = x1, time.e = n1, event.c = x2, time.c = n2, sm = paste("I", contrast, sep = ""), level = level, level.comb = level, method = weight, warn = T, addincr = addincr, incr = incr, hakn = hakn)
    }
    Z <- qnorm(1 - (1 - level) / 2)
    theta <- meta$TE.fixed
    lcl <- meta$lower.fixed # meta$TE.fixed-Z*meta$seTE.fixed
    ucl <- meta$upper.fixed # meta$TE.fixed+Z*meta$seTE.fixed
    if (!is.na(meta$lower.random)) lcl.rand <- meta$lower.random else lcl.rand <- lcl # meta$TE.random-Z*meta$seTE.random
    if (!is.na(meta$TE.random)) theta.rand <- meta$TE.random else theta.rand <- theta # meta$TE.random-Z*meta$seTE.random
    if (!is.na(meta$upper.random)) ucl.rand <- meta$upper.random else ucl.rand <- ucl # meta$TE.random+Z*meta$seTE.random
    estimates <- cbind(lcl, theta, ucl, lcl.rand, theta.rand, ucl.rand)
    if (contrast %in% c("RR", "OR")) estimates <- exp(estimates)
    return(list(estimates = estimates, homog = cbind(Q = meta$Q, tau2 = meta$tau^2, I2 = 100 * meta$I2, pvalQ = 1 - pchisq(meta$Q, meta$df.Q))))
  }
}

###################
# Table 2: Example unstratified confidence intervals using cisapride data plus one from Newcombe
###################
# fround <- function(x,digits=6) paste("(",paste(format(round(x,digits=digits),nsmall=digits),collapse=", "),")",sep="")
fround <- function(x, digits = 6) t(c(round(x, digits = digits)))

# tab2 <- list()
tab2 <- NULL
for (i in 1:3) {
  x1 <- x1hkp[i]
  x2 <- x2hkp[i]
  n1 <- n1hkp[i]
  n2 <- n2hkp[i]
  mytab <- rbind(
    SCAS =
      cbind(
        RDbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = T, contrast = "RD")$estimates[, c(1, 3)], 3),
        RDpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = T, contrast = "RD", distrib = "poi")$estimates[, c(1, 3)], 3),
        RRbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = T, contrast = "RR", RRtang = FALSE)$estimates[, c(1, 3)], 3),
        RRpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = T, contrast = "RR", distrib = "poi")$estimates[, c(1, 3)], 3),
        OR = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = T, ORbias = F, contrast = "OR")$estimates[, c(1, 3)], 3)
        #                    OR=fround(scoreci(x1=x1,x2=x2,n1=n1,n2=n2,stratified=F,theta0=0.5,skew=T,ORbias=T,contrast="OR")$estimates[,c(1,3)],3) #Corrigendum version
      ), MN =
      cbind(
        RDbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = F, contrast = "RD")$estimates[, c(1, 3)], 3),
        RDpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = F, contrast = "RD", distrib = "poi")$estimates[, c(1, 3)], 3),
        RRbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = F, contrast = "RR", RRtang = FALSE)$estimates[, c(1, 3)], 3),
        RRpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = F, contrast = "RR", distrib = "poi")$estimates[, c(1, 3)], 3),
        OR = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, theta0 = 0.5, skew = F, ORbias = F, contrast = "OR")$estimates[, c(1, 3)], 3)
      ), MOVERJ =
      cbind(
        RDbin = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "RD", adj = F, type="jeff")[, c(1, 3)], 3),
        RDpoi = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "poi", contrast = "RD", adj = F, type="jeff")[, c(1, 3)], 3),
        RRbin = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "RR", adj = F, type="jeff")[, c(1, 3)], 3),
        RRpoi = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "poi", contrast = "RR", adj = F, type="jeff")[, c(1, 3)], 3),
        OR = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "OR", adj = F, type="jeff")[, c(1, 3)], 3)
      )
    #                , AN=
    #                  c(
    #                    RDbin=fround(diffBinconf.meta(x1=x1,x2=x2,n1=n1,n2=n2,level=1-alpha,contrast="RD",incr=0)$estimates[,c(1,3)],3),
    #                    RDpoi=fround(diffBinconf.meta(x1=x1,x2=x2,n1=n1,n2=n2,level=1-alpha,contrast="RD",distrib="poi")$estimates[,c(1,3)],3) ,
    #                    RRbin=fround(diffBinconf.meta(x1=x1,x2=x2,n1=n1,n2=n2,level=1-alpha,contrast="RR",incr=0)$estimates[,c(1,3)],3),
    #                    RRpoi=fround(diffBinconf.meta(x1=x1,x2=x2,n1=n1,n2=n2,level=1-alpha,contrast="RR",distrib="poi")$estimates[,c(1,3)],3),
    #                    OR=fround(diffBinconf.meta(x1=x1,x2=x2,n1=n1,n2=n2,level=1-alpha,contrast="OR",incr=0)$estimates[,c(1,3)],3)
    #                  )
  )
  mytab
  #  tab2<-list(tab2,xtable(mytab))
  tab2 <- rbind(tab2, mytab)
}
tab2
# tab2check <- tab2
# save(tab2check,file="tests/testthat/Table2.Rdata")
# load(file="tests/testthat/Table2.Rdata")
load(file = "Table2.Rdata")
# tab2==tab2check
test_that("no change to published examples", {
  expect_equal(
    tab2, tab2check
  )
})



###################
# Table 3: Stratified confidence intervals using cisapride data
###################
fround <- function(x, digits = 6) paste0(format(round(x[1], digits = digits), nsmall = digits), ifelse(length(x) == 1, "", paste0(" (", paste(format(round(x[2:length(x)], digits = digits), nsmall = digits), collapse = ", "), ")")))

x1hk <- c(15, 12, 29, 42, 14, 44, 14, 29, 10, 17, 38, 19, 21)
x2hk <- c(9, 1, 18, 31, 6, 17, 7, 23, 3, 6, 12, 22, 19)
n1hk <- c(16, 16, 34, 56, 22, 54, 17, 58, 14, 26, 44, 29, 38)
n2hk <- c(16, 16, 34, 56, 22, 55, 15, 58, 15, 27, 45, 30, 38)

tab3 <- rbind(
  SCASmh = c(
    RDbin = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "RD", stratified = T, weighting = "MH", skew = T, random = F, hk = T, fixtau = T)$estimates[, c(2, 1, 3)], 3),
    RRbin = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "RR", stratified = T, weighting = "MH", skew = T, RRtang = FALSE, random = F, hk = T, fixtau = T)$estimates[, c(2, 1, 3)], 2),
    OR = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "OR", stratified = T, weighting = "MH", skew = T, ORbias = F, random = F, hk = F, fixtau = T)$estimates[, c(2, 1, 3)], 2)
  ),
  SCASiv = c(
    RDbin = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "RD", stratified = T, weighting = "IVS", skew = T, random = F, hk = T, fixtau = T)$estimates[, c(2, 1, 3)], 3),
    RRbin = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "RR", stratified = T, weighting = "IVS", skew = T, RRtang = FALSE, random = F, hk = T, fixtau = T)$estimates[, c(2, 1, 3)], 2),
    OR = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "OR", stratified = T, weighting = "IVS", skew = T, ORbias = F, random = F, hk = F, fixtau = T)$estimates[, c(2, 1, 3)], 2)
  ),
  TDAS = c(
    RDbin = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "RD", stratified = T, weighting = "IVS", random = T)$estimates[, c(2, 1, 3)], 3),
    RRbin = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "RR", stratified = T, weighting = "IVS", RRtang = FALSE, random = T)$estimates[, c(2, 1, 3)], 2),
    OR = fround(scoreci(x1 = x1hk, x2 = x2hk, n1 = n1hk, n2 = n2hk, contrast = "OR", ORbias = F, stratified = T, weighting = "IVS", random = T)$estimates[, c(2, 1, 3)], 2)
  )
)
tab3
# tab3check <- tab3
# save(tab3check,file="tests/testthat/Table3.Rdata")
load(file = "Table3.Rdata")
# tab2==tab2check
test_that("no change to published examples", {
  expect_equal(
    tab3, tab3check
  )
})


# Examples below need converting into test_that calls

if (FALSE) {



  ###################
  # Table S1: Example continuity-corrected & 'compromise' confidence intervals
  # using cisapride data plus one from Newcombe
  ###################
  fround <- function(x, digits = 6) paste("(", paste(format(round(x, digits = digits), nsmall = digits), collapse = ", "), ")", sep = "")

  tabS1 <- list()
  for (i in 1:3) {
    x1 <- x1hkp[i]
    x2 <- x2hkp[i]
    n1 <- n1hkp[i]
    n2 <- n2hkp[i]

    alpha <- 0.05
    mytab <- rbind(
      SCAScc0.5 =
        c(
          RDbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RD", cc = 0.5)$estimates[, c(1, 3)], 3),
          RDpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RD", distrib = "poi", cc = 0.5)$estimates[, c(1, 3)], 3),
          RRbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RR", RRtang = FALSE, cc = 0.5)$estimates[, c(1, 3)], 3),
          RRpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RR", distrib = "poi", cc = 0.5)$estimates[, c(1, 3)], 3),
          OR = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "OR", cc = 0.5)$estimates[, c(1, 3)], 3)
        ), SCAScc0.25 =
        c(
          RDbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RD", cc = 0.25)$estimates[, c(1, 3)], 3),
          RDpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RD", distrib = "poi", cc = 0.25)$estimates[, c(1, 3)], 3),
          RRbin = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RR", RRtang = FALSE, cc = 0.25)$estimates[, c(1, 3)], 3),
          RRpoi = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "RR", distrib = "poi", cc = 0.25)$estimates[, c(1, 3)], 3),
          OR = fround(scoreci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, stratified = F, skew = T, contrast = "OR", cc = 0.25)$estimates[, c(1, 3)], 3)
        ), MOVERcc0.5 =
        c(
          RDbin = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "RD", cc = 0.5)[, c(1, 3)], 3),
          RDpoi = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "poi", contrast = "RD", cc = 0.5)[, c(1, 3)], 3),
          RRbin = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "RR", cc = 0.5)[, c(1, 3)], 3),
          RRpoi = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "poi", contrast = "RR", cc = 0.5)[, c(1, 3)], 3),
          OR = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "OR", cc = 0.5)[, c(1, 3)], 3)
        ), MOVERcc0.25 =
        c(
          RDbin = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "RD", cc = 0.25)[, c(1, 3)], 3),
          RDpoi = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "poi", contrast = "RD", cc = 0.25)[, c(1, 3)], 3),
          RRbin = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "RR", cc = 0.25)[, c(1, 3)], 3),
          RRpoi = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "poi", contrast = "RR", cc = 0.25)[, c(1, 3)], 3),
          OR = fround(moverci(x1 = x1, x2 = x2, n1 = n1, n2 = n2, distrib = "bin", contrast = "OR", cc = 0.25)[, c(1, 3)], 3)
        )
    )
    tabS1 <- list(tabS1, xtable(mytab))
  }
  tabS1

  ###################
  # Table S2: Single proportion using Newcombe example
  ###################
  fround <- function(x, digits = 6) paste("(", paste(format(round(x, digits = digits), nsmall = digits), collapse = ", "), ")", sep = "")

  waldci <- function(x, n, distrib = "bin", level = 0.95) {
    phat <- x / n
    z <- qnorm(1 - (1 - level) / 2)
    if (distrib == "bin") waldci <- cbind(x / n + z * t(c(-1, 1)) * sqrt(phat * (1 - phat) / n))
    if (distrib == "poi") waldci <- cbind(x / n + z * t(c(-1, 1)) * sqrt(phat / n))
    return(waldci)
  }

  tabS2 <- rbind(
    SCAS =
      c(
        pbin1 = fround(scoreci(x1 = x1g, n1 = n1g, contrast = "p")$estimates[, c(1, 3)], 3),
        ppoi1 = fround(scoreci(x1 = x1g, n1 = n1g, contrast = "p", distrib = "poi")$estimates[, c(1, 3)], 3),
        pbin2 = fround(scoreci(x1 = x2g, n1 = n2g, contrast = "p")$estimates[, c(1, 3)], 3),
        ppoi2 = fround(scoreci(x1 = x2g, n1 = n2g, contrast = "p", distrib = "poi")$estimates[, c(1, 3)], 3)
      ),
    Jeffreys =
      c(
        pbin1 = fround(jeffreysci(x = x1g, n = n1g, adj = F)[, c(1, 2)], 3),
        ppoi1 = fround(jeffreysci(x = x1g, n = n1g, adj = F, distrib = "poi")[, c(1, 2)], 3),
        pbin2 = fround(jeffreysci(x = x2g, n = n2g, adj = F)[, c(1, 2)], 3),
        ppoi2 = fround(jeffreysci(x = x2g, n = n2g, adj = F, distrib = "poi")[, c(1, 2)], 3)
      ),
    Score =
      c(
        pbin1 = fround(scoreci(x1 = x1g, n1 = n1g, contrast = "p", skew = F)$estimates[, c(1, 3)], 3),
        ppoi1 = fround(scoreci(x1 = x1g, n1 = n1g, contrast = "p", skew = F, distrib = "poi")$estimates[, c(1, 3)], 3),
        pbin2 = fround(scoreci(x1 = x2g, n1 = n2g, contrast = "p", skew = F)$estimates[, c(1, 3)], 3),
        ppoi2 = fround(scoreci(x1 = x2g, n1 = n2g, contrast = "p", skew = F, distrib = "poi")$estimates[, c(1, 3)], 3)
      ),
    Wald =
      c(
        pbin1 = fround(waldci(x = x1g, n = n1g)[, c(1, 2)], 3),
        ppoi1 = fround(waldci(x = x1g, n = n1g, distrib = "poi")[, c(1, 2)], 3),
        pbin2 = fround(waldci(x = x2g, n = n2g)[, c(1, 2)], 3),
        ppoi2 = fround(waldci(x = x2g, n = n2g, distrib = "poi")[, c(1, 2)], 3)
      )
  )
  tabS2
  xtable(tabS2)
}