| Group: | GUI functions |
| See also: | readvalue selectitem |
| Function: | slidevalue | |
| Description: | asks for one or more input values via a dialog box with sliders ; and returns them. |
| Usage: | v = readvalue(valuenames, defaults, minima, maxima) | |
| Input: | ||
| valuenames | a vector of strings explaining the values | |
| defaults | a vector of user-defined default values | |
| minima | a vector of minima for each of the values | |
| maxima | a vector of maxima for each of the values | |
| Output: | ||
| v | the vector of values selected by the user | |
valuenames = "X" | "Y" | "Z" defaults = 0 | 0.3 | -10 minima = 0 | 0 | -100 maxima = 10 | 1 | 100 v = slidevalue(valuenames, defaults, minima, maxima) v
; A dialog box is shown where you can enter your values. ; By selectingthe values are read in and stored ; in a vector v displayed in the output window.
proc() = normaldistribution()
m = 1
s = 1
int =(-63:63)/10
d = createdisplay(1,1)
data = int~(pdfn((int-m)/s))
show(d,1,1,setmask(data,"line"))
while(s > 0)
slide = slidevalue("Mean"|"Std. deviation", m|s, -5|0, 5|10)
m = slide[1]
s = slide[2]
deletedata(d,1,1,1)
data = int~(pdfn((int-m)/s))
adddata(d,1,1,setmask(data,"line"))
endo
endp
library("plot")
normaldistribution()
; A window containing the graph of the standard normal density ; function is opened together with a slidevalue dialog box. In the ; slidevalue window, you can choose the mean and standard ; deviation for the density. Clicking OK the graph is redrawn and the ; dialog window reappears. Selecting the standard deviation equal to ; zero stops the program.