Possible solution to this problem

I have got variable A as,

A = {'char1', 'char2'}; %could be char3, char4, char5....so on

There would always be two elements in variable A. Now I have got list of such character elements from which would further give me value of four more variables.

char1 = {x1 = 0, x2 = 2.3, y1 = 2.3, y2 = 2.3};
char2 = {x1 = 0, x2 = 6.5, y1 = 6.5, y2 = 6.5};
char3 = {x1 = 0, x2 = 3.4, y1 = 3.4, y2 = 3.4};
char4 = {x1 = 0, x2 = 8.2, y1 = 7.5, y2 = 8.2};
char5 = {x1 = 0, x2 = 5.5, y1 = 6.5, y2 = 5.5};

now main condition where i want to use this values -

line(handles.axes1, [x1;x2], [y1;y2], 'linestyle', '--');

Any possible method to do it?

[Jan]

 char1 = {x1 = 0, x2 = 2.3, y1 = 2.3, y2 = 2.3};

This is no valid Matlab syntax. I cannot even guess, what this should mean in real code. Please post some code, which create the input in a valid way.

[Ghenji]

Its not valid syntax I get it but that's where the problem is. If there is a call for char1 then i should be getting the values for x and y variables respectively. These might help you understand

if (call for char1)
    x1 = 0; x2 = 2.3; y1 = 2.3; y2 = 2.3; % assign these values to line code
else if ( call for char2)
    x1 = 0; x2 = 6.5; y1 = 6.5; y2 = 6.5; % assign these values to line code
....
...
..
.. and so on.

[Jan]

What is a "call for char1"?

[Ghenji]

char is the main variable/string. call for char is like calling function/some statement that tells that 'sub value' or 'values of sub variable' needs to be taken from these particular main variable. x1,x2,y1,y2 are sub variables. Every main variable contains further 4 sub variables and always in the format x1,x2,y1,y2.

[Ghenji]

Probably this example will help you to understand better --

A = {'Green', 'Magneta'}; %This variable would always contain 2 strings but only one would be used

%%Strings inside should go through data below and get RGB values -

    Black    =    [0,0,0]
    Green    =    [0,255,0]
    White    =    [255,255,255]
    Red      =    [255,0,0]
    Lime     =    [0,255,0]
    Blue     =    [0,0,255]
    Yellow   =    [255,255,0]
    Cyan     =    [0,255,255]

so now with the below function I want the input from only Green as Magneta does not exist in the above data. Magneta shall be ignored.

line(handles.axes [R;G], [G,B]) $takes values only from Green

Answer 1

[Jan]

A bold guess:

Data = [0, 2.3, 2.3, 2.3; ...
        0, 6.5, 6.5, 6.5; ...
        0, 3.4, 3.4, 3.4; ...
        0, 8.2, 7.5, 8.2; ...
        0, 5.5, 6.5, 5.5];

Now use the index 1 instead of what you call "char1". Then:

index = 1;
x1    = Data(index, 1);
x2    = Data(index, 2);
y1    = Data(index, 3);
y2    = Data(index, 4);