Extract numerical values from structure

Hi

I'm taking input parameters from a dialog box which MATLAB then stores in a cell array. I this cell to an structure by using the command: 'cell2struct'.

Now if I want to use the numerical values in the different structure fields it gives me a matrix of certain size except the actual value in single quotes.

Can someone please help on how do I extract only the actual value if I want to use it elsewhere in my code.

Below is what I have so far:

prompt = {'Air Temperature [Degrees Celsius]', 'Air Pressure [Pa]', 'Drag Coefficient','Dart Mass [kg]', 'Firing Angle [degrees]', 'Initial Velocity [m/s]', 'Lattitude [degrees]', 'Elevation [m]'};

dlgtitle = 'System Parameters';

dims = [1 50];

definput = {'17','102000','0.9183','0.009487','5','80','22.111620','66'};

answer = inputdlg(prompt,dlgtitle,dims,definput,'on');

fields = {'T','P','Cd','mass','theta','v0','lat','elevation'};

Par = cell2struct(answer, fields,1);

Answer 1

[Star Strider]

One approach to extracting the numerical values from the cell array of strings that inputdlg returns here is to add an assignment that extracts the numbers from the characters and then converts it to a cell array:

danswer = num2cell(str2double(answer));
Par = cell2struct(danswer, fields,1);

producing:

Par = 

  struct with fields:

            T: 17
            P: 102000
           Cd: 0.9183
         mass: 0.009487
        theta: 5
           v0: 80
          lat: 22.112
    elevation: 66

No quotes!

The rest of your code is unchanged.

[Christo van Rensburg]

Hi Star Strider

It works! Thanks so much, your approach makes sense.

[Star Strider]

As always, my pleasure!

I much prefer inputdlg (and its friends), however they need just a bit of help afterwards to recover the data they return.