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Progress bar
put fprintf('%d\n',progBar); inside the loop

environ 14 ans il y a | 0

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Calculating and Adding Percent Error to a Graph
You are missing the 'dot' in the following expression: percent_error= 100*(1)+(0.5*exp(-4*t)-(0.5*exp(-2*t))-(2-exp(-4*t(i)...

environ 14 ans il y a | 0

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Cannot deduce a transfer function! Help!
I always use fdatool it's pretty straight forward and you can see the result right away.

environ 14 ans il y a | 0

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Looping a function m-file, figures not closing
Try to make the figure invisible: set(gcf, 'Visible', 'off')

environ 14 ans il y a | 0

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function input
See this: http://www.mathworks.com/matlabcentral/answers/21111-getting-function-as-an-argument-of-function

environ 14 ans il y a | 1

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Finding the number of distinct letters in a string
For single letter detection I would create an array of 26 members. Now, assuming you have non-capital letters in the string you ...

environ 14 ans il y a | 0

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Power Spectral Density Plot
If you are using periodogram function without outputs, then it plots dB/Hz. However, if you do: [Pxx,w] = periodogram(...);...

environ 14 ans il y a | 0

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Save base workspace MAT file from GUI
Here is what I would do: for saving a particular set of variables in the struct you can create a struct and save it: structDA...

environ 14 ans il y a | 0

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colormapeditor
Quick way to fix the problem is: colormapeditor; pause; %conntinue your code With this, after the colormap editor appear...

environ 14 ans il y a | 0

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How to seperate fractional and decimal part in a real number
number=1.23; integ=floor(number); fract=number-integ;

environ 14 ans il y a | 9

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writing to an array
For .txt file this should work: A=importdata('Name.txt'); A=bin2dec(A); %not sure that this line will work save (name,'A'...

environ 14 ans il y a | 0

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I need to find difference equation and frequency response
Difference equation (I assume that z^z-1 should be z^-1): 3y[n-2]+2y[n-1]+y[n]=-3x[n]+z[n-1] Frequency response: B=...

environ 14 ans il y a | 0

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confused abt z and z(-1) in matlab
You can take your H(z) and divide by z. So you will have: z^(-1)-2 / z^(-1)+3. Now you can create two vectors containing zeros a...

environ 14 ans il y a | 0

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getting function as an argument of function
Let's say your function is f(x,y)=2x+y. You need to create this function prior you send it to your backEuler: f=@(x,y)2*x+y...

environ 14 ans il y a | 0

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how to initialize an M×N array whose size is unknown in for-loop
One but not very intelligent way to do it is allocate more memory that you need. You probably have an idea of what what would be...

environ 14 ans il y a | 1

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How to load .mat into GUI
handles.E=load(file_load);

environ 14 ans il y a | 0

Question

GUI handles does not update
Hi. Here is a problem: on my gui I have axes where I display an image. At first, my code was as following: axes(handles.ax...

environ 14 ans il y a | 1 réponse | 0

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Extracting data of bode plot
This is straight from help file: [MAG,PHASE,W] = BODE(SYS) I hope you know what to do from here on.

environ 14 ans il y a | 0

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Create matrix...please help me..
I am also confused. Let's say that the user gives you two matrices A and B. It seems like you need to insert columns of one matr...

environ 14 ans il y a | 1

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Out of memory when calculating very large Matrix (~100000 , 200000)
Every time you add a new raw or column to your matrix, the program uses new memory because your old data + new data does not fit...

environ 14 ans il y a | 0

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How to create a random binary matrix with equal number of ones in each column?
Since it's a RANDOM matrix, you are not guaranteed to have the same amount of one's and zero's (at least it seems logical to me)...

environ 14 ans il y a | 0

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Using pushbutton to load file in GUI
do this: rawdata1=load([filepath1 filename1]); GUI does not pass files to the workspace. You have to use the rawdata1 va...

environ 14 ans il y a | 1

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better way of plotting to analyse
Check out help file on bar or barh. This form might be more clear for reading.

environ 14 ans il y a | 0

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are there another func.?
type in Command Window: format short and the output will be of about 5 decimal digits. However, if you have such a large num...

environ 14 ans il y a | 0

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How to see freq response of a wave file
f='name.wav'; [x,sr]=wavread(f) ; Ts=1/sr; N=2^15; x=x(1:N)'; ...

environ 14 ans il y a | 0

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converting images
If you dont use Doppler imaging (your images are grayscale), then it's better to have them as one channel, than is not RGB. This...

environ 14 ans il y a | 0

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declare variable accross all button
Just simply use handles.k instead of k everywhere. Then, after you changed this variable and want to save changes to it, you nee...

environ 14 ans il y a | 0

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iphone x-ray scanner
It works very simple: they play recorded video created from the picture of x-ray scan and as it is playing, they move it along t...

environ 14 ans il y a | 0

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how to check the contents of the variables?
don't put the semi column after the statement x=5 and you will get the expression in Command Window: >>x= >> 5 ...

environ 14 ans il y a | 0

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How to pass arrays to and from a GUI?
This is how I do it: x=evalin('base','X'); where x is my variable in GUI, 'base' assumes WorkSpace and X is a variable that...

environ 14 ans il y a | 1