Error when calling function from GUI

This happens when i assigned calling of the function from a gui. It operated fine if i just simply call the function in command line.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

case 'Correlation',

                  disp(sCr(i,j))
                  disp(CrVa)
                  k=sCr(i,j)-CrVa

the computation gives:

   0.5616

0.9988

k =

    -47.4384  -45.4384  -56.4384  -56.4384  -55.4384  -55.4384

      0.5491

0.9988

k =

    -47.4509  -45.4509  -56.4509  -56.4509  -55.4509  -55.4509

%%%%%%%%%%%%%%%%%%%%%%%%%%%%

[Image Analyst]

Why was sCr(i,j) not printed out in the second case??? Also, can you print out more decimal places, in case there are differences beyond 4 decimal places:

fprintf('%.9f\n', sCr(i,j));

Answer 1

[eng keong]

Ok, i've found the error. Values stored as string won't be automatically treated as numbers sometimes.

0.9988 --> 6 ascii values hence when i use a number deduct string 0.9988, array of values appeared.

Thanks and case closed. Sorry for wasting time of those who tried to help.

Thanks alot.

Answer 2

[eng keong]

thanks for replying. After fprintf('%.9f\n', sCr(i,j)); i got

0.561589812

0.9988

k =

-47.4384  -45.4384  -56.4384  -56.4384  -55.4384  -55.4384

0.549092535

0.9988

k =

-47.4509  -45.4509  -56.4509  -56.4509  -55.4509  -55.4509

[Image Analyst]

OK, so now you learned that sCr(i,j) is different on each run, and because of this you get different values for k on each run. But you have not explained what the error is. Do you have an error message spit out by MATLAB, or did you just think that k should be the same each time even if it subtracts different things each time?

[eng keong]

the calculation is wrong 0.5615-0.9988=-0.4374 and it should be a single value instead of array of values. Sorry that i didn't make it clear.

[eng keong]

the error message leads to latter part of the code which is due to lack of data because i've set the criteria that the sCr must be bigger than CrVa in order to be stored. The error is tracked back to the part as stated above which gives wrong calculation

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

0.549092535

0.9988

k =

-47.4509 -45.4509 -56.4509 -56.4509 -55.4509 -55.4509

??? Index exceeds matrix dimensions.

Error in ==> uniq at 2

v=nnz(Cll(1,:));

.

.

.

%%%%%%%%%%%%%%%%%%%%

this is how the display like when i just call the function through command line

0.6152

0.9988

-0.3836

0.5684

0.9988

-0.4304

* note that i've removed k, and displaying only sCr(i,j)-CrVa

Answer 3

[Image Analyst]

Do you know how to use the debugger? Can you put a breakpoint there and hover over each of the terms in your k line and tell me it they are .56 and .9988? Chances are that CrVa is not a single number with value .9988 and that it is an array, and that you are not posting your full code.

[eng keong]

sorry i don't know how to use debugger

and my gui comprise of a few other guis as i'm really a beginner only.

clust(M,'Correlation',0.9988,3)%%command line

function data_out=clust(data_in,algo,thres,val)

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%Correlation

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

switch algo

case 'Correlation',[v,p,Cr]=corrmat(data_in);

case 'Euclidean',[v,p,Cr]=eucmat(data_in);

end

[sCr,indi] = sort(Cr,'descend');

[Cll]=ver(thres,v,sCr,indi,algo);

.

.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function[v,p,Cr]=corrmat(M)

[v,p]=size(M);

Cr=ones(v,1)./2;

Cr=diag(Cr);

for j=1:1:v-1

i=j+1:1:v;

Cr(i,j)=1-pdist2(M(i,:),M(j,:),'correlation');

end

Cr=Cr+Cr';

end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function[data_out]=ver(CrVa,v,sCr,indi,algo)

a=1;c=0;Cll=zeros(v,v);

for j=1:1:v

chkr=zeros(v,1);

for i=1:1:v;

b=1;

switch algo

case 'Correlation',

disp(sCr(i,j))

disp(CrVa)

disp(sCr(i,j))

if sCr(i,j)>=CrVa

chkr(indi(i,j),1)=1;

end

case 'Euclidean',

if sCr(i,j)<=CrVa

chkr(indi(i,j),1)=1;

end

end

end

if sum(chkr(:,1))>1

for i=1:1:v;

if chkr(i,1)==1

Cll(b,a)=i;

b=b+1;

end

end

a=a+1;

if (b-1)>c

c=b-1;

end

end

end

data_out=trimmer(Cll,c,a-1);

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

function data_out=trimmer(data_in,b,a)

data_out=zeros(b,a);

for i=1:a

for j=1:b

data_out(j,i)=data_in(j,i);

end

end

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

M =

5.1000 3.5000 1.4000 0.2000

4.9000 3.0000 1.4000 0.2000

4.7000 3.2000 1.3000 0.2000

4.6000 3.1000 1.5000 0.2000

5.0000 3.6000 1.4000 0.2000

5.4000 3.9000 1.7000 0.4000

4.6000 3.4000 1.4000 0.3000

5.0000 3.4000 1.5000 0.2000

4.4000 2.9000 1.4000 0.2000

4.9000 3.1000 1.5000 0.1000

5.4000 3.7000 1.5000 0.2000

4.8000 3.4000 1.6000 0.2000

4.8000 3.0000 1.4000 0.1000

4.3000 3.0000 1.1000 0.1000

5.8000 4.0000 1.2000 0.2000

5.7000 4.4000 1.5000 0.4000

5.4000 3.9000 1.3000 0.4000

5.1000 3.5000 1.4000 0.3000

7.0000 3.2000 4.7000 1.4000

6.4000 3.2000 4.5000 1.5000

6.9000 3.1000 4.9000 1.5000

5.5000 2.3000 4.0000 1.3000

6.5000 2.8000 4.6000 1.5000

5.7000 2.8000 4.5000 1.3000

6.3000 3.3000 4.7000 1.6000

4.9000 2.4000 3.3000 1.0000

6.6000 2.9000 4.6000 1.3000

5.2000 2.7000 3.9000 1.4000

5.0000 2.0000 3.5000 1.0000

5.9000 3.0000 4.2000 1.5000

6.0000 2.2000 4.0000 1.0000

6.1000 2.9000 4.7000 1.4000

5.6000 2.9000 3.6000 1.3000

6.7000 3.1000 4.4000 1.4000

5.8000 2.7000 5.1000 1.9000

7.1000 3.0000 5.9000 2.1000

6.3000 2.9000 5.6000 1.8000

6.5000 3.0000 5.8000 2.2000

7.6000 3.0000 6.6000 2.1000

4.9000 2.5000 4.5000 1.7000

7.3000 2.9000 6.3000 1.8000

6.7000 2.5000 5.8000 1.8000

7.2000 3.6000 6.1000 2.5000

6.5000 3.2000 5.1000 2.0000

6.4000 2.7000 5.3000 1.9000

6.8000 3.0000 5.5000 2.1000

5.7000 2.5000 5.0000 2.0000

5.8000 2.8000 5.1000 2.4000

6.4000 3.2000 5.3000 2.3000

6.5000 3.0000 5.5000 1.8000

7.7000 3.8000 6.7000 2.2000

above is calling from command line and should work fine..

the error above is from the gui case..

below is what push button will trigger where data is stored in DATA.data...

tem, thres,val are already acquired from textboxes...

disp(tem)

disp(thres)

disp(val)

DATA.data=clust(DATA.data,tem,thres,val);

"Correlation

0.9988

3" is shown in command window

[eng keong]

hmm to clarify myself better, the data array M is my input data.. and i didn't know that i can write the whole gui in a single file so it would be very messy if posted.