Solved

Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

oltre 10 anni ago

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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 ...

oltre 10 anni ago

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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...

oltre 10 anni ago

Solved

Determine if input is odd

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

oltre 10 anni ago

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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...

oltre 10 anni ago

Solved

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 ...

oltre 10 anni ago

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Times 2 - START HERE

Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

oltre 10 anni ago

Answered

Using uiimport and subsequent coded commands

Hi Jason, In order for your code to wait until uiimport has finished, make sure you request a return value from uiimport. ...

Using uiimport and subsequent coded commands

Hi Jason, In order for your code to wait until uiimport has finished, make sure you request a return value from uiimport. ...

oltre 10 anni ago | 0

| accepted

Answered

Remove ObsNames from MatLab dataset

The property ObsNames may be empty. Otherwise, it should have as many strings as observations. To remove these ObsNames from a d...

Remove ObsNames from MatLab dataset

The property ObsNames may be empty. Otherwise, it should have as many strings as observations. To remove these ObsNames from a d...

oltre 10 anni ago | 0

| accepted

Answered

How to measure running time of a code using MATLAB

Take a look at the <http://www.mathworks.es/help/techdoc/ref/tic.html tic> and <http://www.mathworks.es/help/techdoc/ref/toc.htm...

How to measure running time of a code using MATLAB

Take a look at the <http://www.mathworks.es/help/techdoc/ref/tic.html tic> and <http://www.mathworks.es/help/techdoc/ref/toc.htm...

oltre 10 anni ago | 4

| accepted

Answered

Select a random number from a set

There are a few ways to do it. For example, using randi to select in which position is the card that you will extract. pos ...

Select a random number from a set

There are a few ways to do it. For example, using randi to select in which position is the card that you will extract. pos ...

oltre 10 anni ago | 10

Answered

Neural Network code

Your code is basically creating a network with only one layer of neurons. With newfit this means that the network is trying to f...

Neural Network code

Your code is basically creating a network with only one layer of neurons. With newfit this means that the network is trying to f...

oltre 10 anni ago | 0

| accepted

Answered

how to find distance between two points?

You can use the <http://www.mathworks.es/help/toolbox/stats/pdist.html pdist> function in the Statistics Toolbox: e.g: distance...

how to find distance between two points?

You can use the <http://www.mathworks.es/help/toolbox/stats/pdist.html pdist> function in the Statistics Toolbox: e.g: distance...

oltre 10 anni ago | 27

| accepted

Answered

how to separate out the lung sounds from heart sounds ?

You can use adaptfilt in the DSP toolbox for adaptive noise canceling. A "similar" <http://www.mathworks.com/products/dsp-system...

how to separate out the lung sounds from heart sounds ?

You can use adaptfilt in the DSP toolbox for adaptive noise canceling. A "similar" <http://www.mathworks.com/products/dsp-system...

oltre 10 anni ago | 0

Answered

checking of existing an string in a cell arrays

if ~any(strcmp(CELL,'a')) % Do Something else % Do Something else end

checking of existing an string in a cell arrays

if ~any(strcmp(CELL,'a')) % Do Something else % Do Something else end

oltre 10 anni ago | 31

| accepted

Answered

create vector of repeating elements (sort of)

One of many ways: >> w = 3; n = 8; >> v = repmat(1:n,w,1); >> v = v(1:end)

create vector of repeating elements (sort of)

One of many ways: >> w = 3; n = 8; >> v = repmat(1:n,w,1); >> v = v(1:end)

oltre 10 anni ago | 0

Answered

Angle between two vectors in 3d

You can use the subspace function to find the angle between two subspaces: >> subspace([1;0;0],[0;1;0]) ans = 1...

Angle between two vectors in 3d

You can use the subspace function to find the angle between two subspaces: >> subspace([1;0;0],[0;1;0]) ans = 1...

oltre 10 anni ago | 3

Answered

Combining vectors of day, month and year into a single date vector

dates = datenum([year,month,day]); Then you can plot your data vs. dates. Finally, use |datetick| to change the format o...

Combining vectors of day, month and year into a single date vector

dates = datenum([year,month,day]); Then you can plot your data vs. dates. Finally, use |datetick| to change the format o...

oltre 10 anni ago | 3

| accepted

Answered

Error Message when using configured ANN (mismatch number of inputs)

The functions for creating networks in the toolbox will assume that if your input matrix is |n x m| it will represent |m| sample...

Error Message when using configured ANN (mismatch number of inputs)

The functions for creating networks in the toolbox will assume that if your input matrix is |n x m| it will represent |m| sample...

oltre 10 anni ago | 0

| accepted

Answered

How to define the abstract symbolic of 'f=f(x,y,z)' at Matlab-Smbolic.

You can do the following: >> syms x y z; >> f = sym('f(x,y,z)'); >> g = x * f + y * f^2 + z; >> jacobian(g, [x,y,z]) ans ...

How to define the abstract symbolic of 'f=f(x,y,z)' at Matlab-Smbolic.

You can do the following: >> syms x y z; >> f = sym('f(x,y,z)'); >> g = x * f + y * f^2 + z; >> jacobian(g, [x,y,z]) ans ...

oltre 10 anni ago | 1

Answered

find max of a vector between two indice

>> C = arrayfun(@(x) max(B(A(x):A(x+1))),1:length(A)-1) C = 2 9

find max of a vector between two indice

>> C = arrayfun(@(x) max(B(A(x):A(x+1))),1:length(A)-1) C = 2 9

oltre 10 anni ago | 0

| accepted

Answered

transposing the contents of the cell

Let |C| be your cell. You can do the following: C = cellfun(@transpose,C,'un',0);

transposing the contents of the cell

Let |C| be your cell. You can do the following: C = cellfun(@transpose,C,'un',0);

oltre 10 anni ago | 2

| accepted

Answered

spline? interp?

Do you have the curve fitting toolbox? If so, you can try using the functions |cscvn| for interpolating the spline and |fnplt|...

spline? interp?

Do you have the curve fitting toolbox? If so, you can try using the functions |cscvn| for interpolating the spline and |fnplt|...

oltre 10 anni ago | 0

Answered

Kohonen (example from help does not work)

Which release are you using? There is a known bug in R2010b and R2011a regarding newc and competlayer. <http://www.mathworks.co...

Kohonen (example from help does not work)

Which release are you using? There is a known bug in R2010b and R2011a regarding newc and competlayer. <http://www.mathworks.co...

oltre 10 anni ago | 0

Answered

Neural Network - Multi Step Ahead Prediction

Hi Jack, When using |narxnet|, the network performs only a one-step ahead prediction after it has been trained. Therefore, yo...

Neural Network - Multi Step Ahead Prediction

Hi Jack, When using |narxnet|, the network performs only a one-step ahead prediction after it has been trained. Therefore, yo...

oltre 10 anni ago | 19

| accepted

Answered

Converting a complex number to polar form and finding it's magnitude

r = abs(z); theta = atan2(imag(z),real(z)); Also... r = abs(z); theta = angle(z);

Converting a complex number to polar form and finding it's magnitude

r = abs(z); theta = atan2(imag(z),real(z)); Also... r = abs(z); theta = angle(z);

oltre 10 anni ago | 1

| accepted

Answered

complex numbers in Symbolic Toolbox

*[Updated]* Define the symbolic variables as real and use the function |simplify| when needed: >> syms a b c d real; >> F=a...

complex numbers in Symbolic Toolbox

*[Updated]* Define the symbolic variables as real and use the function |simplify| when needed: >> syms a b c d real; >> F=a...

oltre 10 anni ago | 2

| accepted

Answered

how to increase iteration limit in glmfit ?

Iteration limit is set to 100 in glmfit. You cannot change it unless you edit the function and change it manually (type |edit gl...

how to increase iteration limit in glmfit ?

Iteration limit is set to 100 in glmfit. You cannot change it unless you edit the function and change it manually (type |edit gl...

oltre 10 anni ago | 0

| accepted