Nothing
bpbounds_calc_biv_z3 <- function(g, t) {
# conditional probabilities
# notation is gyz = P(Y=y|Z=z), txz = P(X=x|Z=z)
g00 = g[1]
g10 = g[2]
g01 = g[3]
g11 = g[4]
g02 = g[5]
g12 = g[6]
t00 = t[1]
t10 = t[2]
t01 = t[3]
t11 = t[4]
t02 = t[5]
t12 = t[6]
# bounds on probabilities
p10low1 = g10 - t10
p10low2 = g11 - t11
p10low3 = g12 - t12
p10upp1 = g10 + t10
p10upp2 = g11 + t11
p10upp3 = g12 + t12
p10low = max(c(p10low1, p10low2, p10low3))
p10upp = min(c(p10upp1, p10upp2, p10upp3))
p11low1 = g10 + t10 - 1
p11low2 = g11 + t11 - 1
p11low3 = g12 + t12 - 1
p11upp1 = g10 - t10 + 1
p11upp2 = g11 - t11 + 1
p11upp3 = g12 - t12 + 1
p11low = max(c(p11low1, p11low2, p11low3))
p11upp = min(c(p11upp1, p11upp2, p11upp3))
p10lower = c(p10low1, p10low2, p10low3)
p10upper = c(p10upp1, p10upp2, p10upp3)
p11lower = c(p11low1, p11low2, p11low3)
p11upper = c(p11upp1, p11upp2, p11upp3)
retlist = list(
"p10low" = p10low,
"p10upp" = p10upp,
"p11low" = p11low,
"p11upp" = p11upp,
"p10lower" = p10lower,
"p10upper" = p10upper,
"p11lower" = p11lower,
"p11upper" = p11upper
)
# bounds on causal risk ratio
rrlow = p11low / p10upp
rrupp = p11upp / p10low
retlist = append(retlist, list("crrlb" = rrlow,
"crrub" = rrupp))
# bounds assuming monotonicity
monoin1 = -g10 + g11 - g12
monoin2 = -g10 + g11 + t10 - t11
monoin3 = -g11 + g12 + t11 - t12
monoin4 = g11 - g12 + t11 - t12
monoin5 = g10 - g11 + t10 - t11
monoin6 = g10 - g11 + g12
monoinequality = (monoin1 <= 0) &
(monoin2 <= 0) &
(monoin3 <= 0) & (monoin4 <= 0) & (monoin5 <= 0) & (monoin6 <= 1)
retlist = append(retlist, list("monoinequality" = monoinequality))
monolow1 = -g10 - t10
monolow2 = -g10 - g11 + g12 - t10
monolow3 = -2 * g10 + g12 - t10
monolow4 = -2 * g10 + g11 - t10
monolow5 = -g10 + g12 - t10 + t12 - 1
monolow6 = g12 + t12 - 2
monolow7 = -g10 + 2 * g12 + t12 - 2
monolow8 = -g11 + 2 * g12 + t12 - 2
monolow9 = -g10 + g11 + g12 + t12 - 2
monoupp1 = 1 + g12 - t12
monoupp2 = 1 - g10 + t10
monoupp3 = 1 - 2 * g10 + g11 + t10
monoupp4 = 1 - 2 * g10 + g12 + t10
monoupp5 = 1 - g10 + g11 + g12 - t12
monoupp6 = 1 - g10 + g12 + t10 - t12
monoupp7 = 1 - g10 - g11 + g12 + t10
monoupp8 = 1 - g11 + 2 * g12 - t12
monoupp9 = 1 - g10 + 2 * g12 - t12
monolow = max(
c(
monolow1,
monolow2,
monolow3,
monolow4,
monolow5,
monolow6,
monolow7,
monolow8,
monolow9
)
)
monoupp = min(
c(
monoupp1,
monoupp2,
monoupp3,
monoupp4,
monoupp5,
monoupp6,
monoupp7,
monoupp8,
monoupp9
)
)
if (monoinequality) {
retlist = append(retlist, list("monobplb" = monolow,
"monobpub" = monoupp))
monolower = c(
monolow1,
monolow2,
monolow3,
monolow4,
monolow5,
monolow6,
monolow7,
monolow8,
monolow9
)
monoupper = c(
monoupp1,
monoupp2,
monoupp3,
monoupp4,
monoupp5,
monoupp6,
monoupp7,
monoupp8,
monoupp9
)
retlist = append(retlist,
list("monolower" = monolower,
"monoupper" = monoupper))
# bounds on intervention probabilities assuming monotonicity
monop10low1 = g11 - g12
monop10low2 = g10 - g11
monop10low3 = g10 - g12
monop10low4 = g10 - t10
monop10upp1 = g10 + t10
monop10upp2 = 1 + g10 - g12
monop10upp3 = 1 + g10 - g11
monop10upp4 = 1 + g11 - g12
monop11low1 = -g10 + g12
monop11low2 = -g10 + g11
monop11low3 = -g11 + g12
monop11low4 = g12 + t12 - 1
monop11upp1 = 1 + g12 - t12
monop11upp2 = 1 - g11 + g12
monop11upp3 = 1 - g10 + g11
monop11upp4 = 1 - g10 + g12
monop10lb = max(c(monop10low1, monop10low2, monop10low3, monop10low4))
monop10ub = min(c(monop10upp1, monop10upp2, monop10upp3, monop10upp4))
monop11lb = max(c(monop11low1, monop11low2, monop11low3, monop11low4))
monop11ub = min(c(monop11upp1, monop11upp2, monop11upp3, monop11upp4))
retlist = append(
retlist,
list(
"monop10lb" = monop10lb,
"monop10ub" = monop10ub,
"monop11lb" = monop11lb,
"monop11ub" = monop11ub
)
)
monop10lower = c(monop10low1, monop10low2, monop10low3, monop10low4)
monop10upper = c(monop10upp1, monop10upp2, monop10upp3, monop10upp4)
monop11lower = c(monop11low1, monop11low2, monop11low3, monop11low4)
monop11upper = c(monop11upp1, monop11upp2, monop11upp3, monop11upp4)
retlist = append(
retlist,
list(
"monop10lower" = monop10lower,
"monop10upper" = monop10upper,
"monop11lower" = monop11lower,
"monop11upper" = monop11upper
)
)
# bounds on causal risk ratio assuming monotonicity
monocrrlb = monop11lb / monop10ub
monocrrub = monop11ub / monop10lb
retlist = append(retlist,
list("monocrrlb" = monocrrlb,
"monocrrub" = monocrrub))
}
return(retlist)
}
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