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index error for find function
Ok, it looks like you've got a vector "Signal_fft_hilbert", which I'm going to call "v". If want v(14.6484). The only way yo...

約12年前 | 0

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How to plot a line parallel to a line with a distance of d between them ?
For where you want to plot it: x = 0:1:42; m = 4; c = -12; Line 1 = y1 = m*x + c Line 2 (above by d) ...

約12年前 | 0

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Error using save can't write file
Some versions of the save function really don't react well to structures.

約12年前 | 0

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How to create File Browser in GUI?
uigetfile/uiputfile Those functions bring up the standard file browse window....

約12年前 | 2

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Playing sound: Switching seamlessly between two or more sounds
I don't know about seamlessly from a GUI. You can play any duration of sound using "sound". I would be tempted to split the ...

約12年前 | 0

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How can I write a function that takes as input a vector of 8 bit signed integer in twos-complement and represen the negation of the input
bin2dec, can turn a binary string into a decimal number. I suggest you then cast it as: int8 dec2bin can then turn a deci...

約12年前 | 0

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Is it possible to save . mat <4095x1384x2 double> file to txt file?
Yes. You can most certainly save something that big to text file. I wouldn't say that is sensible. There are three reasons f...

約12年前 | 0

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Delete rows from matrix
To "delete" matrix = eye(5);%5x5 identity matrix list_o_cols_to_delete = [1 3 5]; matrix(:,list_o_cols_to_delete) = [] ...

約12年前 | 0

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Search access database through matlab
I can't give specific help. I imagine that you can directly interface with microsoft access via activex. You will need a wor...

約12年前 | 0

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matlab precision error in comparison with fortran's code
If you want to compare the values to see if they're exactly the same, you can write the values to a binary file, and then read t...

約12年前 | 0

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if (strcmp(O1,'00000') || strcmp(O1,'10000') || strcmp(O1,'11000')) I used this but still my code is not working?
if (strcmp(O1,'00000') || strcmp(O1,'10000') || strcmp(O1,'11000')) ... Thats easier if you do: if any(strcmp(O1, { '00000'...

約12年前 | 0

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Help with Matalab code in detecting sign change in a Vector
minsign = sign(min(A)); maxsign = sign(max(A)); answer_vector(numel(minsign)) = false; answer_vector(minsign==-1 & maxs...

約12年前 | 0

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How to increase the number of points to plot for imagesc(Z)
Ok, Have they asked you to calculate a z, for each square meter, each square decimeter, each square centimeter, of square fo...

約12年前 | 0

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How do i use eval function when the sentence has apostrophe (') in it?
Heres a third answer.... apostrophe = char(39); then just use apostrophe And a fourth answer: If you actually want a...

約12年前 | 0

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Sir, I want to find the temperature of a flame image using only Matlab. I am working on the concept to relate flame area with its temperature as as the red component of RGB flame increase with increase with temperature. I have already find out the a
The size of a flame doesn't particularly influence the *temperature*, A very large red flame will always have a lower temperatur...

約12年前 | 0

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How to change the variable name in the loop
for to i = 1:2 The "to" should be removed. The string you're trying to evaluate is nutty. To form a string like the ...

約12年前 | 0

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Need help with graphing program
You have your formulae, you just need to make them work. angular_freqs = 1000:250:10000; .* and ./ do elementwise multi...

約12年前 | 0

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Operands to the || and && operators must be convertible to logical scalar values. Error in logspace (line 23) if d2 == pi || d2 == single(pi)
Assuming that logspace is something you didn't write and you can't change the if statement: for i = 1:1666 logarithmic_sp...

約12年前 | 0

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How can I pre allocate the memory for a variable? or is it possible?
lf you want is to preallocate a sparse array, all you need is: Sis = sparse(2000000, 250000); If you look at the help doc...

約12年前 | 0

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is it possible to get index of reshaped matrix
The functions ind2sub and sub2ind, give you a more general way of doing it, which expands to more dimensions...

約12年前 | 1

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Is it possible to run MATLAB GUI automatically? I need to run GUI automatically ( without pushing any buttons). Anyone can help me?
Items on GUI's that run code do so via simple, straightforward, function calls called "callbacks". You may call those functions...

約12年前 | 0

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Summation in a for loop without cumulitive
C(i) = sum( a([i-b]:[i+b]) ) That puts into C(i), the sum of the (i-b)th index of a, to the (i+b)th index of a. What y...

約12年前 | 0

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reshape a matrix with a divisible of 10....
To pad it with 0's: if mod(numel(A),10) A(ceil(numel(A)/10)*10) = 0; end B = reshape(A,10,[]); To pad with NaNs.....

約12年前 | 1

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error message: "the rpc server is unavailable" - what causes it / how to get rid of it?
I've seen that error when the excel application matlab was interfacing with has closed but it hasn't been replicated in matlab's...

約12年前 | 0

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How can i set a time for "input" waiting?
I'm not sure if there is a direct way. You can do it in a slightly different way. tic disp('Press space to enter what ...

約12年前 | 0

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How do i change the axis limits of a plot without modifying the graph?..Please help
2 ways: 1. Change the scaling of the graph eg. axis([0 1 2 3]) - change the numbers as needed. 2. Change the labels on ...

約12年前 | 0

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Splitting a string of decimal point numbers
You need to apply knowledge of what you've got. You might have, if you inspect the string closely, a separating, non-printin...

約12年前 | 0

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how can i store a phase and magnitude of a image in single variable using matlab?
x = fftshift(fftA) That gives you the info.... however, single_var(:,:,1) = abs(x); single_var(:,:,2) = angle(x)...

約12年前 | 0

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How to truncate all the decimal places??
fix(time) rounds time towards 0, so it gets rid of the decimal places. (truncates numerically) str = num2str(time); truncated...

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how to compare 2 or more RPM value
minimum_value = min([45 234 54 3124 745 124 2356 eps(1)]); second_min_value = min(0:100); minimum_minimum = min([ minimum_v...

約12年前 | 0