MATLAB: Case instead of if-then

caseif then

Hi,

I have:

solveload=[0 0 0 'x' 'y' 'z'];

And need to determine only the position of the x, the y, and the z, when they could be anywhere in the vector, with 0's elsewhere. I'm finding I need a bunch of if-then's. It must be easier?

Thanks in advance 🙂

Dave

Best Answer

There seem to be missing information.

What characterises ‘x’, ‘y’, and ‘z’?

What makes them so difficult to find? Range? Real/Complex? Something else?

Related Solutions

MATLAB: How i can solve this problem? Pleas!

Your ‘T’ matrix must become a cell array. See my sample of ‘T’ for an example.

Once you do that, I would do something like this:

Y = [12.004
    13.1573 
    11.1665  
    11.8082    
    12.2129   
    12.8075   
    12.4167  
    11.5708   
    12.5798    
    13.7489];
T={'cluster2'; 'cluster1'; 'cluster3'; 'cluster9'; 'cluster0'; 'cluster7'; 'cluster4'}; % Sample Of Cell Array
[UnqClust,~,idx] = unique(T);                                                           % Unique Values & Locations
Out = Y(idx);                                                                           % Mapped Output
for k1 = 1:length(idx)
    fprintf(1, '\t%s\t%.4f\n', T{k1}, Out(k1))              % Demonstration Output (Delete Loop)
end
  cluster2  11.1665
  cluster1  13.1573
  cluster3  11.8082
  cluster9  12.4167
  cluster0  12.0040
  cluster7  12.8075
  cluster4  12.2129

MATLAB: Surf plot using meshgrid

As z is an array, the following two statements

if z<100

and

elseif z>=100 & z<200

will only be true if every element within z satisfies the conditions, so you always end up with the third result (k=z-100).

To apply the if elseif statements to every element within z, try

x=0:300;
y=x;
[xx,yy]=meshgrid(x,y);
z=(xx+yy)/2;
figure
surf(x,y,z,'EdgeColor','none')
k = z;
k(z>=100) = z(z>=100)-100;
k(z>=100&z<200) = 100;
figure
surf(x,y,k,'EdgeColor','none')

Best Answer

Related Solutions

MATLAB: How i can solve this problem? Pleas!

MATLAB: Surf plot using meshgrid

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