Gelöst

Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...

fast 14 Jahre vor

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

fast 14 Jahre vor

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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 ...

fast 14 Jahre vor

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

fast 14 Jahre vor

Gelöst

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...

fast 14 Jahre vor

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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 ...

fast 14 Jahre vor

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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...

fast 14 Jahre vor

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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.

fast 14 Jahre vor

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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...

fast 14 Jahre vor

Gelöst

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 ...

fast 14 Jahre vor

Gelöst

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:...

fast 14 Jahre vor

Beantwortet
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. ...

etwa 14 Jahre vor | 0

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Beantwortet
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...

etwa 14 Jahre vor | 0

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Beantwortet
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...

etwa 14 Jahre vor | 5

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Beantwortet
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 ...

etwa 14 Jahre vor | 10

Beantwortet
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...

mehr als 14 Jahre vor | 0

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Beantwortet
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...

mehr als 14 Jahre vor | 28

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Beantwortet
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...

mehr als 14 Jahre vor | 0

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

mehr als 14 Jahre vor | 37

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Beantwortet
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)

mehr als 14 Jahre vor | 1

Beantwortet
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...

mehr als 14 Jahre vor | 3

Beantwortet
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...

mehr als 14 Jahre vor | 4

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Beantwortet
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...

mehr als 14 Jahre vor | 0

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Beantwortet
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 ...

mehr als 14 Jahre vor | 1

Beantwortet
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

mehr als 14 Jahre vor | 0

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Beantwortet
Eliminate duplicate values in a row!
unique(A)

mehr als 14 Jahre vor | 0

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

mehr als 14 Jahre vor | 2

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

mehr als 14 Jahre vor | 0

Beantwortet
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...

mehr als 14 Jahre vor | 0

Beantwortet
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...

mehr als 14 Jahre vor | 20

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