Solved

Given a and b, return the sum a+b in c.

bijna 11 jaar ago

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...

bijna 11 jaar ago

Solved

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 ...

bijna 11 jaar ago

Solved

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...

bijna 11 jaar ago

Solved

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

bijna 11 jaar ago

Solved

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...

bijna 11 jaar 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 ...

bijna 11 jaar ago

Solved

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:...

bijna 11 jaar ago

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. ...

bijna 11 jaar ago | 0

| accepted

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...

bijna 11 jaar ago | 0

| accepted

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...

ongeveer 11 jaar ago | 4

| accepted

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 ...

ongeveer 11 jaar ago | 10

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...

ongeveer 11 jaar ago | 0

| accepted

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...

ongeveer 11 jaar ago | 27

| accepted

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...

ongeveer 11 jaar ago | 0

checking of existing an string in a cell arrays
if ~any(strcmp(CELL,'a')) % Do Something else % Do Something else end

ongeveer 11 jaar ago | 34

| accepted

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)

ongeveer 11 jaar ago | 0

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...

ongeveer 11 jaar ago | 3

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...

ongeveer 11 jaar ago | 3

| accepted

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...

ongeveer 11 jaar ago | 0

| accepted

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 ...

ongeveer 11 jaar ago | 1

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

ongeveer 11 jaar ago | 0

| accepted

Eliminate duplicate values in a row!
unique(A)

ongeveer 11 jaar ago | 0

| accepted

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

ongeveer 11 jaar ago | 2

| accepted

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

ongeveer 11 jaar ago | 0

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...

ongeveer 11 jaar ago | 0

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...

ongeveer 11 jaar ago | 20

| accepted

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);

ongeveer 11 jaar ago | 1

| accepted

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...

ongeveer 11 jaar ago | 2

| accepted