Making my function run for multiple input values

function t = TrueThickness(strike,dip,pTop,pBase)

% transformatiion matrix
a = [sin(strike) cos(strike) 0;...
    cos(strike)*cos(dip) -sin(strike)*cos(dip) -sin(dip);...
    -cos(strike)*sin(dip) sin(strike)*sin(dip) -cos(dip)];



% transform points
p3n = zeros(3);
p4n = zeros(3);

for i = 1:3
    for j = 1:3
        p3n(i) = a(i,j)*pTop(j) + p3n(i);
        p4n(i) = a(i,j)*pBase(j) + p4n(i);
     
    end
end

% compute thicknessess
tt = abs(p3n(3) - p4n(3)) 

end

saved file as test12414!!

Here I make new matlab file and try running my function

-----------------------------------------------------------------------------------------------------------------------------------

pTop= [724277     4944457        1270]
pBase = [ 724371     4944506        1299]
strike = 161.5651
dip = 16.0389
test12414(strike,dip,pTop,pBase)

the code works and is great but I want to be able to have several values for my strike,

dip ,pTop and pBase. for example lets say i want to use the script 3 times for different values.

Then pTop and pBase will be 3x3 vectors so have 9 numbers and strike and dip will have 3 values

how would I do this?

Answer 1

[ME]

You could call the function inside a ‘for’ loop. That would enable you to feed in the different input values. For example:

In1=[val1 val2 val3];
In2=[val1 val2 val3];
for i=1:3
    [out1(i) out2(i)]=function(In1(i) in2(i))
end

Obviously, adjust for your particular application.

[Eric]

Thank you for you answer this makes sense but I ran into a small problem (I think).

test12414(strike,dip,pTop,pBase) I replaced this with:

for b=1:3

out(b,:) = test12414(strike(b), dip(b),pTop(b,:),pBase(b,:))

end

gives error:

Output argument "t" (and maybe others) not assigned during call to "test12414".

Error in svarararada (line 12)

out(b,:) = test12414(strike(b), dip(b),pTop(b,:),pBase(b,:))

any idea how to fix this?

And my function is supposed to output 1 value but since I have b=1:3 it should give 3 values

[Walter Roberson]

You define

function t = TrueThickness(strike,dip,pTop,pBase)

but you never assign anything to t . You do, however, assign to tt but do not use tt after the assignment.