How to solve : Undefined function 'rdivide' for input arguments of type 'matlab.ui​.control.N​umericEdit​Field'. Error?

Hello, I always get these 'matlab.ui.control.NumericEditField' errors with whatever code I run with. How to solve this "Undefined function 'rdivide' for input arguments of type 'matlab.ui.control.NumericEditField'." Error? I am quite new in this. Thanks in advance.

app.CL = app.CLEditField.Value; % Description

app.ks = app.ksEditField; % Description

app.k = app.kEditField; % Description

app.Beta0 = app.Beta0EditField.Value; % Description

app.cbyc = app.cbycEditField.Value; % c/c*

app.D = app.DEditField.Value; % Description

app.D50 = app.D50EditField.Value; % Description

app.rho = app.rhoEditField.Value; % Description

app.rhos = app.rhosEditField.Value; % Description

app.u = app.uEditField.Value; % Description

app.taubc = app.taubcEditField.Value; % Description

app.d = app.dEditField.Value; % Description

app.g = app.gEditField.Value; % Gravity

app.CbarL = app.CbarLEditField.Value; % C'L

app.E = app.EEditField.Value; % Description

app.Cc = app.CcEditField.Value; % Description

app.Bs = app.BsEditField.Value; % Basal's erosion, ξ

q =(log((0.35.*app.d)./app.ks)).^2;

x = [app.CL.*q./app.k]; %C'L =x, k =k2

z = sin(app.Beta0);

m = sqrt(x./(3*app.rhos));

v = 1- app.cbyc.*cos(app.Beta0);

app.E = [(z).*m.*(v)];

app.Cc = (26.53*(app.D.^(1/6)))/(app.D50^(1/6));

taubo= (app.rho*app.g*app.u^2)/(app.Cc.^2);

app.Bs = app.E*(1- (app.taubc/taubo))^(3/2).*(taubo).^(1/2);

app.CbarLEditField.Value = x;

app.EEditField.Value = app.E;

app.CcEditField.Value = app.Cc;

app.tauboEditField.Value = taubo;

app.BsEditField.Value = app.Bs;

Answer 1

[Steven Lord]

You cannot perform arithmetic on an object handle. You will need to perform arithmetic on the Value property of that handle.

As an example, on this line of code:

q =(log((0.35.*app.d)./app.ks)).^2;   

app.d is defined as the value of the edit field:

 app.d = app.dEditField.Value; % Description

while app.ks is defined as the edit field itself:

app.ks = app.ksEditField; % Description

Try either changing app.ks to be app.ksEditField.Value (to match how app.d is defined) or change the line of code to use app.ks.Value.

[Mehbubul Haque]

Hello, I tried it but it still doesn't work, the last line is where the error is, "app.BsEditField.Value = Bs; "

• The value must be double scalar. - Error

CL = app.CLEditField.Value;

ks = app.ksEditField.Value;

k = app.kEditField.Value;

Beta0 = app.Beta0EditField.Value;

cbyc = app.cbycEditField.Value;

D = app.DEditField.Value;

D50 = app.D50EditField.Value;

rho = app.rhoEditField.Value;

rhos = app.rhosEditField.Value;

u = app.uEditField.Value;

taubc = app.taubcEditField.Value;

d = app.dEditField.Value;

g = app.gEditField.Value;

q =(log((0.35.*d)./ks)).^2;

x = (CL.*q./k);

z = sin(Beta0);

m = sqrt(x./(3*rhos));

v = 1- cbyc.*cos(Beta0);

E = ((z).*m.*(v));

Cc = (26.53*(D.^(1/6)))/(D50^(1/6));

taubo= (rho*g*u^2)/(Cc.^2);

Bs = (E.*(1- (taubc/taubo)).^(3/2).*(taubo)^(1/2));

app.CbarLEditField.Value = x;

app.EEditField.Value = E;

app.CcEditField.Value = Cc;

app.tauboEditField.Value = taubo;

app.BsEditField.Value = Bs;

[Steven Lord]

Set a breakpoint on that last line of code. Run your code. When you reach the breakpoint, run this command:

whos Bs

I suspect Bs will be a double array, but it will not be a scalar. The Value of your edit field needs to be one number, not an array containing many numbers.

If you were expecting Bs to be a scalar, show us the sizes of the rest of the variables and we can try to help you determine how to make Bs a scalar.

whos

[Mehbubul Haque]

Hello, Thanks again. Yes, Bs is a double array. How can I display that in the app, edit field?

Below is just an example of how the answer comes.

Bs =

0.0000 - 5.3737i

>> whos Bs

Name Size Bytes Class Attributes

Bs 1x1 16 double complex