Unrecognized function or variable 'phload.'

numdesigns=5
nelx=30;
nely=30;

for i=1:numdesigns
   volfrac=round((.3+(.8-.3)*rand(1,1)),1); %random # from .3 to .8
   penal=3; %paper said "typically 3"
   rmin=round((1.2+(1.5-1.2)*rand(1,1)),1); %filter size- range or?
   
   %primary load is set to -1 (and applied at bottom right of beam)
   %phantom load randomly changes magnitude + location
   %added code lines 91+
   
   phload=round((.1+(.3-.1)*rand(1,1)),2); %random magnitude from 0.1 to 0.3
   phlocation=randi([round(2*(nelx+1)/3) nelx+1], 1,1); %from 2/3 beam to right end
   
   toploadph(nelx,nely,volfrac,penal,rmin, phload, phlocation)
end 

I get that both phload and phlocation are unrecognized. don't know why.

the beginning of the function looks like this:

function toploadph(nelx,nely,volfrac,penal,rmin, phload, phlocation);

Error says this:

Unrecognized function or variable 'phload'.

Error in toploadph>FE (line 94)

F(2*nelx*(phlocation-1)+ 2,2)=phload; %location represents vertical columns

Error in toploadph (line 16)

[U]=FE(nelx,nely,x,penal);

Error in generatetop99 (line 64)

toploadph(nelx,nely,volfrac,penal,rmin, phload, phlocation)

[Sudhakar Shinde]

Make sure there is no any 'clear' command used. Check if unfortunately this varible get cleared by any way.

Answer 1

[Walter Roberson]

You are passing phload into toploadph, but toploadph is not passing it into FE which needs it.

We can also predict that FE is not a nested function within toploadph -- if it were nested, then it would have access to the parameters passed in to the nesting function.

[Rachel Dawn]

how are you so good at ths stuff? thanks!