################################
# GUI for pcaiv function
################################
"dialog.pcaiv" <- function(show, history)
{
#
# Main dialog window with title
#
tt <- tktoplevel()
tkwm.title(tt,"pcaiv")
#
# Variables for text fields
#
dudi1var <- tclVar()
df2var <- tclVar()
dudioutvar <- tclVar()
nfvar <- tclVar()
#
# Checkboxes
#
scannfvar <- tclVar(1)
#
# Title
#
TFrame <- tkframe(tt, relief="groove")
labh <- tklabel(TFrame, bitmap="questhead")
tkgrid(tklabel(TFrame,text="Principal components analysis w/r to instrumental variables", font="Times 18", foreground="red"), labh)
tkbind(labh, "<Button-1>", function() print(help("pcaiv")))
tkgrid(TFrame)
#
# Dataframe and dudi
#
IOFrame <- tkframe(tt, relief="groove", borderwidth=2)
tkgrid(tklabel(IOFrame,text="- Input & output -", foreground="blue"), columnspan=5)
dudi1.entry <- tkentry(IOFrame, textvariable=dudi1var)
dfnr1.label <- tklabel(IOFrame, width=4)
dfnc1.label <- tklabel(IOFrame, width=4)
df2.entry <- tkentry(IOFrame, textvariable=df2var)
dfnr2.label <- tklabel(IOFrame, width=4)
dfnc2.label <- tklabel(IOFrame, width=4)
dudiout.entry <- tkentry(IOFrame, textvariable=dudioutvar)
choose1.but <- tkbutton(IOFrame, text="Set", command=function() choosedudirc(dudi1.entry, dfnr1.label, dfnc1.label))
choose2.but <- tkbutton(IOFrame, text="Set", command=function() choosedf(df2.entry, dfnr2.label, dfnc2.label))
tkgrid(tklabel(IOFrame,text="Input dudi name : "), dudi1.entry, choose1.but, dfnr1.label, dfnc1.label)
tkgrid(tklabel(IOFrame,text="Input dataframe name : "), df2.entry, choose2.but, dfnr2.label, dfnc2.label)
tkgrid(tklabel(IOFrame,text="Output dudi name : "), dudiout.entry)
tkgrid(IOFrame)
#
# Number of axes
#
NAFrame <- tkframe(tt, relief="groove", borderwidth=2)
tkgrid(tklabel(NAFrame,text="- Number of principal axes -", foreground="blue"), columnspan=2)
nf.entry <- tkentry(NAFrame, textvariable=nfvar, width=4, state="disabled")
scannf.cbut <- tkcheckbutton(NAFrame,text="Ask number of axes interactively", variable=scannfvar,
command=function() if (!as.logical(tclObj(scannfvar))) tkconfigure(nf.entry, state="normal") else tkconfigure(nf.entry, state="disabled") )
tkgrid(scannf.cbut, sticky="w", columnspan=2)
tkgrid(tklabel(NAFrame,text="Number of axes : "), nf.entry, sticky="w")
tkgrid(NAFrame)
#
# Local variables
#
done <- tclVar(0) # To terminate the dialog
################################
# Function to build the command line from dialog widgets
################################
"build" <- function()
{
#
# Check that the dudi1 is not empty and get its name
#
if (tclvalue(dudi1var) != "") {
dudi1 <- parse(text=tclvalue(dudi1var))[[1]]
} else {
return(0)
}
#
# Check that the df2 is not empty and get its name
#
if (tclvalue(df2var) != "") {
df2 <- parse(text=tclvalue(df2var))[[1]]
} else {
return(0)
}
#
# If scannf is false, check that nf is not empty and get it
#
scannf <- as.logical(tclObj(scannfvar))
if (!scannf) {
if (tclvalue(nfvar) != "")
nf <- parse(text=tclvalue(nfvar))[[1]]
else nf <- 2
} else nf <- 2
#
# Make the command line
#
substitute(pcaiv(dudi = dudi1, df = df2, scannf = scannf, nf = nf))
}
################################
# Function to reset all dialog elements to default values
################################
"reset" <- function()
{
tclvalue(dudi1var) <- ""
tclvalue(df2var) <- ""
tclvalue(dudioutvar) <- ""
tclvalue(nfvar) <- ""
tkconfigure(dfnr1.label, text="")
tkconfigure(dfnc1.label, text="")
tkconfigure(dfnr2.label, text="")
tkconfigure(dfnc2.label, text="")
}
################################
# Function to launch computations
################################
"execcomp" <- function()
{
#
# Check that the output dudi name is not empty and set it
#
if (tclvalue(dudioutvar) == "") tkinsert(dudiout.entry, "end", "untitled1")
dudiout <- parse(text=paste("\"",tclvalue(dudioutvar)[[1]],"\"",sep=""))
#
# Build and display the command line so that the user can check it
#
cmd <- build()
if (cmd == 0) return(0)
if (show) {
#
# Echoe the command line to the console
#
pr1 <- substr(options("prompt")$prompt, 1,2)
cat(eval(dudiout), " <- ", deparse(cmd, width.cutoff = 256), "\n", pr1, sep="")
}
#
# Execute the command
#
assign("ade4TkGUIFlag", 1, envir=env_ade4tkgui)
myObject <- eval.parent(cmd)
assign(eval(dudiout), myObject, envir=env_ade4tkgui)
dialog.dudi.display(show, history, eval(dudiout))
rm("ade4TkGUIFlag", envir=env_ade4tkgui)
if (history) {
commande <- paste(eval(dudiout), " <- ", deparse(cmd, width.cutoff = 500), sep = "")
rewriteHistory(commande)
}
}
#
# Reset and Submit buttons
#
RCSFrame <- tkframe(tt, relief="groove")
reset.but <- tkbutton(RCSFrame, text="Reset", command=reset)
cancel.but <- tkbutton(RCSFrame, text="Dismiss", command=function() tkdestroy(tt))
submit.but <- tkbutton(RCSFrame, text="Submit", default="active", command=function() execcomp())
tkgrid(cancel.but, submit.but, reset.but, ipadx=20)
tkgrid(RCSFrame)
#
# If window is closed by user, terminate the dialog
#
tkbind(tt, "<Destroy>", function() tclvalue(done)<-2)
tkbind(tt, "<KeyPress-Return>", function() execcomp())
tkbind(tt, "<KeyPress-Escape>", function() tkdestroy(tt))
#
# User closed the window
#
if(tclvalue(done)=="2") return()
}
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