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w <- gwindow("gformlayout test", visible=FALSE)
## layout a collection of widgets to generate a t.test
tTest <- list(type = "ggroup",
horizontal = FALSE,
children = list(
list(type="fieldset",
columns = 2,
label = "Variable(s)",
label.pos = "top",
label.font = c(weight="bold"),
children = list(
list(name = "x",
label = "x",
type = "gedit",
text = ""),
list(name = "y",
label = "y",
type = "gedit",
text = "",
depends.on = "x",
depends.FUN = function(value) nchar(as.character(value)) > 0,
depends.signal = "addHandlerBlur"
)
)
),
list(type = "fieldset",
label = "Hypotheses",
columns = 2,
children = list(
list(name = "mu",
type = "gedit",
label = "Ho: mu=",
text = "0",
coerce.with = as.numeric),
list(name = "alternative",
type="gcombobox",
label = "HA: ",
items = c("two.sided","less","greater")
)
)
),
list(type = "fieldset",
label = "two sample test",
columns = 2,
depends.on = "y",
depends.FUN = function(value) nchar(as.character(value)) > 0,
depends.signal = "addHandlerBlur",
children = list(
list(name = "paired",
label = "paired samples",
type = "gcombobox",
items = c(FALSE, TRUE)
),
list(name = "var.equal",
label = "assume equal var",
type = "gcombobox",
items = c(FALSE, TRUE)
)
)
),
list(type = "fieldset",
columns = 1,
children = list(
list(name = "conf.level",
label = "confidence level",
type = "gedit",
text = "0.95",
coerce.with = as.numeric)
)
)
)
)
g <- ggroup(horizontal = FALSE, cont = w)
fl <- gformlayout(tTest, cont = g, expand=TRUE)
bg <- ggroup(cont = g)
addSpring(bg)
b <- gbutton("run t.test", cont = bg)
addHandlerChanged(b, function(h,...) {
out <- svalue(fl)
out$x <- svalue(out$x) # turn text string into numbers via get()
if(out$y == "") {
out$y <- out$paired <- NULL
} else {
out$y <- svalue(out$y)
}
print(do.call("t.test",out))
})
visible(w) <- TRUE
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