ginput

The question is that: Read 12 arbitrary numbers from the keyboard to a vector one at a time. The numbers should all be in the range 0-20. The m-file should ask for a new number until the vector has 12 elements.The input from the keyboard must come after a request. When the vector has 12 elements it should present them as a matrix dispalyed in the command window. There should also be a plot of the numbers. Present them with ’*’ in the plot. They should be connected with a dotted line. The second part of the m-file should have a graphical reading. Mark the twelve points by a click with the mouse button in the plot ( use ginput !). Then round these twelve points towards nearest integer. Put these twelve rounded values together with the twelve original values in a matrix ( different columns). Display the matrix in the command window and put a comment there as well. Hint: Use a for-loop and ginput. Use help to find out how these work !

and my code is:

D=cell(1,12) for i=1:12, D{1,i}=input('Give me any number between 0 and 20:\n'); end celldisp(D); Z=[D{1} D{2} D{3} D{4} D{5} D{6} D{7} D{8} D{9} D{10} D{11} D{12}]; disp(Z);

x=1:1:12; plot(x,Z,'r--*','linewidth',2); axis([0 12 0 20]); xlabel('x axis') ylabel('inputs')

for i=1:12, [X,Y] = round(ginput(i)); end

it gives error like that

Error using round Too many output arguments.

Error in assignment2 (line 20) [X,Y] = round(ginput(i));

why it gives an error like that ?

Yahya Aktaş

Answer 1

[yahya aktas]

yes now it works fine but it wants from me always mouse click I only want the my twelve points by clicking..

Thank you for your answer.

[Thomas]

Check my edited answer and please accept the answer if you found it helpful and solved your problem..

Answer 2

[yahya aktas]

D=cell(1,12)

for i=1:12,

    D{1,i}=input('Give me any number between 0 and 20:\n');
end 
celldisp(D);
Z=[D{1} D{2} D{3} D{4} D{5} D{6} D{7} D{8} D{9} D{10} D{11} D{12}];
disp(Z);

x=1:1:12;

plot(x,Z,'r--*','linewidth',2);

axis([0 12 0 20]);

xlabel('x axis')

ylabel('inputs')

for i=1:12,

[X,Y] = round(ginput(i));

end

Answer 3

[Thomas]

Try

for i=1:12,

[X,Y] = ginput(i);

end
X=round(X);
Y=round(Y);

EDIT for 12 inputs

remove for loop

[X,Y]=ginput(12);
X=round(X);
  Y=round(Y);

[yahya aktas]

yes know everything is okey thank you very much for your answers..

kind regards..

Yahya Aktaş

[Yunus]

To Yahya aktaş

merhaba abi resmin belirli bölgesini seçip oradaki piksellerin konum bilgisini nasıl alabilirim ?