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How do I label Lines
Look at the <http://www.mathworks.com/help/matlab/ref/text.html text()> matlab function. You can add a label at any point and yo...

12年弱前 | 0

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How to use a loop to call function to same plot.
Just use a loop, after the first line (after figure()), use for i=1:10 ...%Put code here end Make sure to add the end....

12年弱前 | 0

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How can I extract one column from this matlab file?
If I were to assume that the column e is the second column and the name of the matrix it's in is matrix1, then: RequiredCol...

12年弱前 | 1

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Solve f(x) in terms of another variable? Or just in general.
First of all, unless you define e as a number, MATLAB doesn't recognize it as the number e. To use the number e (2.71..), you sh...

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Checking duplicateentries in a large matrix
I would recommend looking at the <http://www.mathworks.com/help/matlab/ref/unique.html unique()> function in MATLAB. In your ...

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Cleaning-up Code With Comments
To add comments into a code, simply use the percent (%) sign. For example for i=1:10 x=i % Makes x equal to i end

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How to insert a function into a push button
One of your problems might be that you are defining x in two different sections of the GUI. What you can do is pass the handles ...

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how to close a particular figure file if it exists
I tried running the same thing and it worked, however, I assume that your main problem is in the if statement, not the close lin...

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please any help to CHANGE THIS CODE to acquire one gray image per 3 minute
Change the pause line to pause(180). It reads it in seconds.

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How to step over a loop and go into next iteration & plot graph with different vector length?
Why don't you use the <http://www.mathworks.com/help/matlab/ref/interp1.html interp1()> function to get data sets with the same ...

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set image as background
http://www.mathworks.com/support/solutions/en/data/1-19J7T/?solution=1-19J7T

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how to random value?
Generate values from the uniform distribution on the interval [a, b]. r = 2 + (3-2).*rand(1); or the general form ...

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How to stop an ode-solver if integration takes too long?
At the start of your code: StartTime=clock; At the end of each loop/the point you might want to exit TimeElapsed=cl...

12年弱前 | 1

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How to find the volume from a set of 500 datas?
plot(Data(:,1), Data(:,2))

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How to use a function for multiple sets of numbers with a single command?
D=sqrt((A(2:end,2)-A(1:end-1,2)).^2+(A(2:end,3)-A(1:end-1,3)).^2)

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sending data via serial port
To put a time interval in your script, I would suggest looking at the <http://www.mathworks.com/help/matlab/ref/pause.html pause...

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About vector comparasion question.
Have you tried using the 'or' operator? if size(a,2)==3 | size(b,2)==3 ... elseif size(a,1)<=size(b,1) ... end Sorry...

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How to remove background color from an image
I think this <http://www.mathworks.com/videos/image-processing-toolbox-overview-61214.html tutorial> will help you. Look through...

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What does this mean? "In an assignment A(I) = B, the number of elements in B and I must be the same"
In the p(i+1) section, the y that you are multiplying by is actually a matrix. I think there is a mistake there because you p...

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getframe in MATLAB movie
Just set your getframe(gcf) to whichever window you want to capture. For example, if you want to capture the plot in figure 1...

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i am working on a college project, how can i count the no. of objects such as no. of cars in an image? how may i compare previous image and present image and tell the no. of new objects in present image? may i get a code for it?
I think looking at these examples should help you get started: http://www.mathworks.com/products/image/examples.html

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how to shift an array value upward ?
Just use a=a(1:end-1) to remove the last value.

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A normalizing constant to a histogram
The way I understand it is that you want the plot to have more white space. Have you considered redefining the axis limits? T...

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Is it possible to show point id in figure
hold on % Get the values from the matrix point_id=Matrix1(:,1); x=Matrix1(:,2); y=Matrix1(:,3); % Set the text to show up...

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change colour of a text into blue
Try doing it in one line text(10, 0.06, 'Normal distribution', 'Color', 'b')

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how to convert gray scale image into rgb image?
Gabriel made a script for that. You can find it <http://www.mathworks.com/matlabcentral/fileexchange/28111-gray2rgb here>.

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Coordinates of an area graph
My solution would be to use the find() function. Since you have the max, you can search the data for where that value exists and...

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Getting an if statement to accept a word.
Just change your inputs function to be: fit=input('Would you describe your fitness level as low, medium, or high?', 's') ...

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How do i remove rows from a column based on the value of a corresponding column?
Remove=find(A<=120.0000); B(Remove)=[]; If you also want to remove these values from matrix A, then A(Remove)=[];

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Integrate in time domain
You can use the <http://www.mathworks.com/help/symbolic/int.html int(expr,var,a,b)> function. So in your case, it would be ...

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