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Hello everyone , I am beginer in MATLAB Can anyone help how to trace the boundary of the waveforn and plot the flow velocity time graph from it. Much thankss
Yes it's possible but it would be better to just export the signal from the program as a text file rather than to try to reconst...

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How to draw straight horizontal line with specific axis
@Abdullah Alasfour I understand that you want to do bandpass filtering of a signal in the Fourier domain. While I don't have an...

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Can someone explain me why it shows me the index in position 1 error?
MATLAB is case sensitive. K is different than k. Try using k instead of K.

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I want to fill my table in a loop, the variable names do not change along
I would build your table (fill it with numbers and strings) first, and then after that loop set the variable names for the colum...

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Valid Coin Mask True Pixels Error Outside or Beyond the Actual Mask Error
I don't think most of that is needed. I would just threshold, call imfill, and then call bwareaopen. The double imcomplement a...

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Excel ActiveX slow and stealing focus
What is the visibility property? Try making it invisible right after you get it. hExcel.Visible = false; or something like th...

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Running GUI shows last images in the axes - how to make the axes be empty
It should not be doing this but you forgot to attach your .fig and .m files. At the beginning of your OpeningFcn function put t...

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Processing of data after image analysis, overlaying the distribution
In your loop, you need to add a plot of the histogram of just the areas of just the areas of the current image. so before the l...

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Where is the system origin for the principal point of a camera?
Well neither is correct since you swapped rows and columns from [480, 640] to when you were talking about [320, 240] and [320.5 ...

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How to add trace marker along the graphs in videos?
See attached movie making demos. Try taking one of them and modifying it. If you can't figure it out, post your code attempt.

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How can I store the compressed file into a different folder with the same structure as the original?
See the FAQ: https://matlab.fandom.com/wiki/FAQ#How_can_I_process_a_sequence_of_files? If you still can't figure out how to ad...

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resize and fill table
Does this work for you? data = readmatrix('file.xlsx'); % Note: sometimes 0's are missing from colum 1 for some reason. % Is ...

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How to find differences between 2 large tables that have a mix of string and numbers?
Have you tried iterating over every element of both tables using isequal to determine whether the locations are the same? Somet...

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I am trying to plot data over a satellite image using the pcolor function
Have you tried displaying the image with imshow and then using text to show numbers over the image? Do you have a mock-up of wh...

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matlab error starting desktop
Trust me, your fastest route to success is to do exactly what it says in the FAQ: https://matlab.fandom.com/wiki/FAQ#After_inst...

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MATLAB has encountered an internal error and needs to close
Since it looks like some third party software where the access violation originates, not MATLAB itself, you'll have to take it u...

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how do i use for statementt
You will learn that and many other fundamental concepts, if you invest 2 hours of your time here: MATLAB Academy - Free 2 hour ...

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Getting this error: Unrecognized field name "absolut".
CEU_X evidently does not have a field called that. What does this show whos CEU_X CEU_X if you type those into the command w...

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Scanned images to matlab array
Use imread grayImage = imread(bmpFullFileName); See the FAQ for how to get the file names into a string. https://matlab.fando...

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why my code run in online matlab, and in app has an error?
When I run it on my computer, it says 'detectSpeech' requires Audio Toolbox. Error in test1 (line 17) detectSpeech(audioIn,fs...

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I need anyone can help me in my project"melanoma detection based on shark smell algorithm"
If it's not in the File Exchange, then most likely the rare individual who has that code will not see your post and hand over th...

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Why do I get the error "Subscript indices must either be real positive integers or logicals." ?
We get this asked every day. It's our most FAQQY of FAQs, so see the FAQ for a thorough discussion: https://matlab.fandom.com/...

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What are Your Thoughts on TMW Documentation Linking to the File Exchange
I think that as long as the documentation refers to other Mathworks staff-supplied web pages or code, it's fine by me.

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Cannot save a figure as a PNG file
Try exportgraphics exportgraphics(gcf, fileName);

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Convert cell array to filename
See the FAQ: https://matlab.fandom.com/wiki/FAQ#What_is_a_cell_array? Let's say element 1 of your cell array has a string that ...

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How can measure distance after threshold
"the distance from the right side to any white region , and from botton to the any white region. " To find the distance from t...

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Masking images/matrixes
It looks like your mask is actually a labeled image since each blob seems to have a unique value (label). So in that case to ge...

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Dividing part of a histogram
I think you may have overlooked my suggestion to use linspace to compute the edges, or you just coudn't figure it out. So here ...

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update the column headng by readin the excel file
You forgot to attach your workbook, and forgot to say what kind of variable you want to work with in MATLAB (table, cell array, ...

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Dividing part of a histogram
Specify the "edges" you want for the bins as an input to histogram or histcounts

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