Answered

Possible to vectorize xcorr?

After some time, I realized that x is the same throughout all calculations, which means that I can pre-calculate both it's FFT a...

Possible to vectorize xcorr?

After some time, I realized that x is the same throughout all calculations, which means that I can pre-calculate both it's FFT a...

presque 7 ans ago | 0

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Possible to vectorize xcorr?

Greetings. Currently my workstation can't keep up when I attempt to calculate the cross correlation for very long signals. ...

presque 7 ans ago | 1 answer | 0

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Extreme gain for low pass filter

% Filter constants Wp = 5e3*2*pi; Ws = 9.5e3*2*pi; Rp = 2; Rs = 45; % Butterworth lowest order [n,Wn] = ...

environ 7 ans ago | 1 answer | 0

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Arduino Run on Target Hardware + Stateflow

Hi! I'm trying to setup Arduino through Simulink on R2012a and use Stateflow. But when I try to deploy (Run on Target) it com...

plus de 7 ans ago | 2 answers | 0

Solved

Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

plus de 7 ans ago

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Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

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Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

plus de 7 ans ago

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Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

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Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

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Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

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Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

plus de 7 ans ago

Answered

How can I get in code the path of currently running deployed matlab function

_pwd_ also returns the current path. This is what I use in my GUIs.

How can I get in code the path of currently running deployed matlab function

_pwd_ also returns the current path. This is what I use in my GUIs.

plus de 7 ans ago | 0

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Answered

The thickness of border lines on a plot (different than that of the inner lines)

I found that the figure automatically chooses the renderer ZBuffer, which is the cause of your display issues. I can't answer as...

The thickness of border lines on a plot (different than that of the inner lines)

I found that the figure automatically chooses the renderer ZBuffer, which is the cause of your display issues. I can't answer as...

plus de 7 ans ago | 0

Answered

How to tell Matlab to ignore NaNs in calculations/loops

data_vec = [1 2 3 4 5 NaN 7 8 NaN 10 12]; data_vec(~isnan(data_vec)) ans = 1 2 3 4 5 7 8 10 12

How to tell Matlab to ignore NaNs in calculations/loops

data_vec = [1 2 3 4 5 NaN 7 8 NaN 10 12]; data_vec(~isnan(data_vec)) ans = 1 2 3 4 5 7 8 10 12

plus de 7 ans ago | 0

Answered

How to calculate hash sum of a string (using java)?

*Solution:* The trick here is to input an ascii representation of your string (hence, the double(string) call). MessageDigest...

How to calculate hash sum of a string (using java)?

*Solution:* The trick here is to input an ascii representation of your string (hence, the double(string) call). MessageDigest...

plus de 7 ans ago | 1

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Question

How to calculate hash sum of a string (using java)?

Couldn't find this very easily (without including a bunch of c-mex files etc) so I thought I'd post it here for future reference...

plus de 7 ans ago | 2 answers | 0

Question

Count the number of trend changes in a vector.

I need to count the number of times a vector increases/decreases. E.g vec = [0 0 1 2 4 4 2 0 1 2 3] diff(vec) ans ...

plus de 7 ans ago | 3 answers | 0

Question

XML parsing vs regexp

I'm trying to extract values from two elements in a pretty large xml. I'm stuck between doing it "the right way" and doing it "t...

plus de 7 ans ago | 1 answer | 1

Answered

Eigenvalue calculation in MATLAB

From <http://www.mathworks.se/help/techdoc/ref/eig.html> [V,D] = eig(A,B,flag) specifies the algorithm used to compute eigen...

Eigenvalue calculation in MATLAB

From <http://www.mathworks.se/help/techdoc/ref/eig.html> [V,D] = eig(A,B,flag) specifies the algorithm used to compute eigen...

plus de 7 ans ago | 2

Answered

Having trouble compiling uigetfile function

It always works for me. It could be that you only call filename = uigetfile('*.xls','Select your file'); Instead, you sho...

Having trouble compiling uigetfile function

It always works for me. It could be that you only call filename = uigetfile('*.xls','Select your file'); Instead, you sho...

plus de 7 ans ago | 2

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Answered

Changing values in 2D array using logical operators

aa = rand(10, 10); aa(aa < 0.5) = NaN;

Changing values in 2D array using logical operators

aa = rand(10, 10); aa(aa < 0.5) = NaN;

plus de 7 ans ago | 0

| accepted

Answered

Count the number of trend changes in a vector.

I think I've cracked it. My logic follows from; # I wish to count the number of first derivative changes. # I wish to exclud...

Count the number of trend changes in a vector.

I think I've cracked it. My logic follows from; # I wish to count the number of first derivative changes. # I wish to exclud...

plus de 7 ans ago | 0

Answered

How can I Read or get the Values one by one from matrix variable or array?

z_elem = nnz(nnz == 0) nz_elem = nnz(nnz ~= 0) Then do your calculations on each.

How can I Read or get the Values one by one from matrix variable or array?

z_elem = nnz(nnz == 0) nz_elem = nnz(nnz ~= 0) Then do your calculations on each.

plus de 7 ans ago | 0