Undefined variable "handles" or class "handles.ik5".

set (handles.ik5,'string',ik5);

Unable to resolve the name 'handles.ik5'.

set (handles.es5,'string',es5);
set (handles.el5,'string',el5);

set (handles.ik7,'string',ik7);
set (handles.es7,'string',es7);
set (handles.el7,'string',el7);

set (handles.pk,'string',pk);
set (handles.ep,'string',ep);
set (handles.em,'string',em);
set (handles.rg,'string',rg);
set (handles.els,'string',els);

pg=handles.pg;
lg=handles.lg;
smk=handles.smk;
sktm=handles.sktm;
ttm=handles.ttm;
dr=handles.dr;
wg=handles.wg;
agm=handles.agm;
rt=handles.rt;
rp=handles.rp;
ts=handles.ts;
rup=handles.rup;
run=handles.run;
jup=handles.jup;
jun=handles.jun;
pr=handles.pr;
dk=handles.dk;
jr=handles.jr;
ksp=handles.ksp;
ksl=handles.ksl;
kp=handles.kp;
rh=handles.rh;

ik5 = (0.116)/(sqrt(wg));
es5 = ik5*(ttm+(1.5*rp));
el5 = ik5*(ttm+(6*rp));

ik7 = (0.157)/(sqrt(wg));
es7 = ik7*(ttm+(1.5*rp));
el7 = ik7*(ttm+(6*rp));


pk = (pg*ksp)+(lg*ksl)+(pr*jr);
ep = agm*rh;
na = (2*pk)/((pg*ksp)+(lg*ksl));
nb = (sqrt((pg*ksp)+(lg*ksl))/(4*sqrt(pg*lg)));
n = na*nb*1*1;
ki = 0.644+(0.148*n);
jsp = (pg)/(ksl-l);
kh = sqrt(l+kp);
km = (1/(2*3.14159))*(((log((jsp*jsp)/(16*kp*dk)))+(((jsp+2*kp)^2)/(8*n*dk))-((dk)/4*dk))+(1/kh)*(log(8/(3.14159*(2*n-1)))));
em = km*ki*rt*(agm/pk);
rg = rt*((l/pk)+(1/aqrt(20*(pg*lg)))*(1+(1/(1+kp*aqrt(20/(pg*lg))))));
ks = 1/3.14159*((1/(2*kp))+(1/(jsp+kp))+(1/jsp)+(1-0.5^(n-2)));
els = ks*ki*rt;

Answer 1

[Steven Lord]

Did you try to copy this code out of an app and run it in the Command Window? That's not going to work. Generally a handles structure is created and maintained by an app (most often one created with GUIDE, but it could also have been created programmatically) and if you try to run that code without the corresponding app, MATLAB don't know where to find the data the code asks for.

[Walter Roberson]

I searched online but I could not find any matching code. It must have been provided to them by someone.