Geoff Hayes

Last seen: 1 day ago | Active since 2014

Professional Interests: Software Engineering, Target Tracking, Video Streaming apps

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Incorrect use of '=' operator. To assign a value to a variable, use '='. To compare values for equality, use '=='.
@Dorian Le Quilleuc - remove the = sign from with the struct creation and replace with commas struct(... "data.meanBlink",...

1 day ago | 0

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mex.h not found
@Maia2022 - I have the same problem with this code because of the kdtree_common.h file where the path to the mex.h is hard-coded...

5 days ago | 1

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Answered
Oldest person in the room code not working
@Takura Nyatsuro - look closely at name >> name = ['bob' 'bill' 'janice' 'kyle']; >> name name = 'bobbilljanicekyle'...

7 days ago | 0

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How do you create callback inside the callback?
@SooYoung Oh - highlight the button (from within App Designer) and right-click to select Callback -> Add ButtonPushed callback (...

12 days ago | 0

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"brake" not working in Matlab 2021b - is there a fix or work around?
@William Farrell - the keyword is break not "brake".

15 days ago | 0

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TOOLBOX_MFO HAS
@bahar vojdani - I suspect that you are launching the MFO_toolbox.fig (figure) and not running the MFO_toolbox.m file (in fact, ...

15 days ago | 0

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error message in app designer when closing app
@Leon - rather than using a while loop to update your label (which I suspect is the cause of the error), I recommend using a tim...

15 days ago | 0

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Answered
Why is my plot not showing anything?
@Aarya O - consider this line x = linspace(0,10,1); where you say that you want 1 linearly spaced item between 0 and 10. So th...

18 days ago | 1

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im currently still learning how to do Matlab why do i getting Index in position 1 exceeds array bounds. Index must not exceed 6? (line 51) Rob.plot(y(i,:));
@Timothy Ambun - the error message is telling you that there are only 6 elements in y so for i = 1:1:51 atj=Rob.fkine(y(1,...

18 days ago | 0

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Answered
I want to use a for loop inside a function, where the for loop contains a subfuction. Each loop must store the variable value and make a matrix of all values, but I get 0s :(
@Nikolas Katsantonis - you are using a as an integer and as a result from test a=5; for n=1:a %<--- a...

18 days ago | 1

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Answered
The end operator must be used within an array index expression.
@Haya Ali - from this line plot(t(45/dt:end),minf(45/dt:end-1), 'r',t(45/dt:end), w(45/dt:end-1), 'g', 'LineWidth', 2) what is...

18 days ago | 0

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Answered
it says error using assert, assertion failed and error in iuntitled (line 10) assert(ischar(in))
@Ian - as per the function comment, Encode a single character i. I suspect that you are passing something else i.e. a numeric va...

18 days ago | 0

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How to extract the column_13 from 79 csv files and save into the new csv file
@muhammad choudhry - create a cell array to store the 13th column from each file. For example, extractedData = cell(numel(list)...

18 days ago | 1

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Answered
How to plot histogram on axis in App designer
@Med Future - you can specity the axes as detailed in this example x = randn(10000,1); h = histogram(app.ULAxis, x);

19 days ago | 0

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Answered
How to Plot scatterplot in Single loop in App designer
@Med Future - if you create an array of your axes, then you will be able to loop over it. Something like the following might wor...

19 days ago | 0

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If statement dictating acceptable range is not functioning properly, why?
@Aly Osman - what are the units for a and so the units for b? In your looping code, that includes the if statement, you do for ...

25 days ago | 0

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Answered
Please I have a code but it keep saying Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.
@Sedulous12 - there is a semi-colon instead of (perphaps) a comma: 2*DETEnergyDetector(:,11).*DETEnergyDetector(:,12);'k.'); %...

25 days ago | 0

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Answered
How to autoscroll slider in this case using pushbutton?
@Swetha C - you may want to nest your code within a main function so that you don't have to use the @doc:guidata which may not b...

26 days ago | 0

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Answered
Return to the start of while or continue the script with an if condition
@JESUS LOPEZ ARENAL - you could put the more code into the else block, or just use continue as while i<j a=rand if a<...

29 days ago | 0

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Answered
How do I convert a 2d matrix to a 3d matrix?
@Mirza Etnisa - consider using cat to concatente your matrices along the third dimension: result = cat(3, Ekc1, Ekc2, Ekc3, Ekc...

29 days ago | 0

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How to make a target appear and then disappear
@Dax Cvancara - try using a timer to delete the graphics object (of the right dot) after 0.3 seconds. Nest your code into a main...

1 month ago | 0

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Is there a way to control two subplots with one slider?
@Derrell Dsouza - I think the issue is with your call to imagesc where you are not specifiying the axes upon which to draw the i...

1 month ago | 0

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Answered
Have a issue in running Dstar path planning
@Yasaman Hajnorouzali - your link points to the DstarPO rather than the DstarMOO but I think the issue is that you aren't passin...

1 month ago | 0

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Answered
hORİZONTAL AND VERTCAL WİTH SAME THİCKNESS BUT DİFFERENT OUTPUTS İN GUİDE
Fix seems to be to update the style of the axis...changing the code from axis(handles.axes1,'equal'); to axis(handles.axes1,'...

2 months ago | 0

Answered
How do I take input through the editbox in GUI and then pass the data in a script(.m) file?
@Animesh Anand - you will need to convert your code from a script (if that is what it is) to a function so that you define the c...

2 months ago | 0

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Answered
MATLAB GUI calling external function
@Jason Chang - you will need to change the signature for your appsynthesizertestcode function so that you can pass in the parame...

2 months ago | 0

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How do I connect my strings to my function?
@Natalie Merchant - I may not have grasped exactly what you want, but I think from the code and your question, you are looking f...

2 months ago | 0

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Answered
Create a highscore im matlab GUI video game
@Ruslan Avramenko - in the restart button callback, you will want to compare the number in the high score field with that in the...

2 months ago | 1

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Answered
Cut measured data, time series shifted
@Mark S - since the first column on M corresponds to time, and since you divide that column by 1000, you would want to find all ...

2 months ago | 0

Answered
how can I convert Tiff images with different timepoint to Mp4?
@Abdallah Almahmoud - are you trying to read multiple TIFF files with t = Tiff([folder 'test_27_Hour_00_Minute_00_Second_00...

2 months ago | 0

Geoff Hayes

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