J. Webster
University of Mississippi
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Long time acoustics signal processor.
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Feeds
Reading csv files that have mixed string and numbers, with inconsistent columns and rows
I think the way I'd approach this is with something like the following. fid = fopen('myfile.csv'); myline = fgetl(fi...
más de 8 años hace | 0
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Pregunta
Report Generator suddenly stopped working... Undefined function or variable 'report'.
We purchased the report generator add on a few weeks ago. I've been using it regularly. This morning I went to start it up a...
más de 8 años hace | 0 respuestas | 0
0
respuestasinterpolate only between columns
Can you just transpose the matrix before you interpolate? Y = Y';
más de 8 años hace | 0
Convert Minutes to Seconds
no idea why it behaves that way. However, you should check out <http://www.mathworks.com/help/matlab/ref/datetick.html dateti...
más de 8 años hace | 0
Pregunta
Having trouble with fonts and centering a plot using Report Generator
Currently using the Report Generator app on Linux to generate pdf reports. When I use the Direct PDF (Default Template) forma...
más de 8 años hace | 1 respuesta | 0
1
respuestaHow to see the time difference of the same day for different time zones?
also look at tzoffset. Not sure what versions it's in http://www.mathworks.com/help/matlab/ref/tzoffset.html
más de 8 años hace | 0
line thickness issue, LineWidth acts as an integer
as far as I know the only available line widths are 0.5, 1.0, 2.0, 3.0, 4.0 etc...I suspect it's a floating point to accommodat...
más de 8 años hace | 0
Plot the signals y(t)=sin(8πt) and g(t)=sin(18πt). Then sample both with a sampling period of 1/13s. Sketch the discrete signals. What do you observe?
Since t is an array, and you want y and g to be arrays, you need to use the . notation for operations... so for example, repl...
más de 8 años hace | 0
How can I make a title/label bold and large in LaTeX?
I don't have superlabel installed, but you might try something like this... [a,h]=suplabel('super Title' ,'t'); set(h,...
más de 8 años hace | 1
Extracting a sub-hertz modulating wave.
Why not just use a low pass filter?
más de 8 años hace | 0
transfer function frequency response
Take the fourier transform of both signals, then the transfer function will be the FFT of the cavity divided by the FFT of the r...
más de 8 años hace | 0
Level of noise in fft
This looks like you aren't windowing your data properly before you take the fft of it. Try applying a Hamming or Hanning window...
más de 8 años hace | 0
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Pregunta
question about when a callback function is supposed to be called.
In my program, which is written in App Designer, I have a Text Edit Field which contains the path to my data directory. One c...
más de 8 años hace | 1 respuesta | 0
1
respuestaProgrammatically add AppDesigner uicontrol
Instead of generating buttons, I think it would be better to populate a Drop Down with the names of the files, and open them tha...
más de 8 años hace | 0
Table won't sort?
One way to do this is to add another column in your table made up of datenums generated by your dates. Then sort your table bas...
más de 8 años hace | 0
scaling down 0x axis coordinates of a graphic
Is this what you're looking for? x = 1:.5:56; %example initial array with spacing of 1/2 from 1 to 56 %subtract the...
más de 8 años hace | 0
Anyone know where I can find the source code for conv2.m?
I found this. Though I couldn't tell you if its the one that works for you or not. <http://freesourcecode.net/matlabprojects...
más de 8 años hace | 0
How to read Multiple CSV files in multiple sub folders
Not sure exactly how you want to merge the csvs, but the basic way to run through all the directories is this... inp...
más de 8 años hace | 0
Double exponential fits, but single curves away from the data- why?
very steep power laws can be notoriously difficult to fit, since small changes in x lead to big changes in y, it makes it hard o...
más de 8 años hace | 0
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Pregunta
How can I save a figure within app designer?
I've developed an application using the new App Designer. I'd like to have users be able to click a button and save a figure to...
más de 8 años hace | 15 respuestas | 9
15
respuestasA moving point along a graph.
You put the plot inside of a loop and update the position of the point each time... x = 0:.01:6; y = sin(x); px =...
más de 8 años hace | 1
Where is SPI simulink block for raspberry ?
This question should be asked on a raspberry pi board, but... I believe it depends on which raspberry pi you're using... <ht...
más de 8 años hace | 0
How to save values as one variable from a for loop
save them in an array. Say you process the loop N times... myArray = zeros(1,N); %initialize array to all zeros for i...
más de 8 años hace | 0
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I am getting Subscripted assignment dimension mismatch in the following code.
Gonna be hard to troubleshoot this without seeing what hog_features_vector() returns, or what the dimensions of T are. my gue...
más de 8 años hace | 0
I am getting this error:
I don't get an error, are you sure the code above is what you have in your program?
más de 8 años hace | 0
plotting points with different colors
something like this maybe? RegionsMap = randi([1 4],10,10); x = rand(1,10); y = rand(1,10); figure(10); ...
más de 8 años hace | 1
How can i convert multiples lines into 1 text string (big block)
file = textread('text.txt', '%s', 'whitespace',''); file will be a cell array containing the string you want.
más de 8 años hace | 0
Why are the results of my spectrogram sinusoidal?
You don't want just the real part of the fft, you want the magnitude of it. change s_real = real(s) to s_mag =...
más de 8 años hace | 0
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Why doesn't my for loop work?
The method you are using...remove all elements in the array that aren't matchValue, then when done, counting the number of eleme...
más de 8 años hace | 0
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