# getvalue

xwindow dialog for data acquisition

## Calling Sequence

    [ok,x1,..,x14]=getvalue(desc,labels,typ,ini)

## Arguments

desc

  column vector of strings, dialog general comment

labels

  n column vector of strings, `labels(i)` is the label of the ith required value

typ

  `list(typ_1,dim_1,..,typ_n,dim_n)`

  typ_i

    defines the type of the ith value, may have the following values:

    "mat"

      for constant matrix

    "col"

      for constant column vector

    "row"

      for constant row vector

    "vec"

      for constant vector

    "intvec"

      for constant vector with integer values i.e int(x) == x

    "str"

      for string

    "lis"

      for list

  dim_i

    defines the size of the ith value it must be an integer or a 2-vector of integer, -1 stands for undefined dimension

ini

  n column vector of strings, `ini(i)` gives the suggested response for the ith required value

ok

  boolean ,%t if ok button pressed, %f if cancel button pressed

xi

  contains the ith value if ok=%t. If left hand side has one more `xi` than required values the last `xi` contains the vector of answered strings.

## Description

This function encapsulate `x_mdialog` function with error checking, evaluation of numerical response, ...

## Remarks

All valid expressions can be used as answers; for matrices and vectors `getvalues` automatically adds [ ] around the given answer before numeric evaluation.

## Examples

    labels=["magnitude";"frequency";"phase    "];
    [ok,mag,Freq,ph]=getvalue("define sine signal",labels,...
         list("vec",1,"vec",1,"vec",1),["0.85";"10^2";"%pi/3"])

## See Also

- x_mdialog
- x_matrix
- x_dialog