Risposto
Combining Vector in a matrix
A cell array is very useful when you want to combine strings and numerical values into a single matrix. Let's build one: Mo...

oltre 11 anni fa | 1

| accettato

Risposto
How to cut the end of a string which follows a special character?
Many options, including: str = 'sahdklsjf_sdfs' out1 = str(1:find([str '_']=='_',1,'first')) Also take a look at TEX...

oltre 11 anni fa | 0

Risposto
Plotting 1/x correctly
Your plotting values against their index. And indeed, since x(3) is not equal to 3, but 0.2020, y(3) is not 1/3. You can use pl...

oltre 11 anni fa | 0

Inviato

permnsub(V,N, IX)
Subset of all permutations with repetition

oltre 11 anni fa | 693 download |

5.0 / 5

Domanda

Problem running Windows executable using "system"
I have an executable (PROG.exe) that runs perfectly within a cmd-shell in windows 7. However, when I call it from within matlab ...

oltre 11 anni fa | 0 risposte | 0

0

risposte

Risposto
Matlab jokes or puns
MatLab excels Excel while Excel does not matlab MatLab.

oltre 11 anni fa | 137

Risposto
Why when we try to represent a sinus function we use a cosinus expression some times and cosinus another times like the case in matlab?
Both a cosine and a sine are sinusoids, but one is shifted in phase compared to the other cos(x) = sin(x + (pi/2))

oltre 11 anni fa | 1

| accettato

Risposto
Find a subset of unique permutations
Why not use NCHOOSEK? A = [5 6 2 4 7]; nchoosek(A,3) ans = 5 6 2 5 6 4 ...

oltre 11 anni fa | 2

| accettato

Risposto
error when sum a vector
Most likely you have declared a *variable* called sum, which now clashes with the *function* sum In your case, you then want ...

oltre 11 anni fa | 2

Risposto
How can I find maximum before a certain element in my matrix
Just for fun, as a one-liner: B = [5 8 5 2 6 9 10]; MaxBeforeMin = max(B(1:find(B==min(B),1,'first')))

oltre 11 anni fa | 1

Risposto
How can I find the maximum element of each column of a cell array
Life would be much easier if you didn't have your data arranges like this in the first place. How did you get this cell array? I...

oltre 11 anni fa | 1

Risposto
how to concatenate vectors
If all elements of T are row or column vectors, you can use VERTCAT or HORZCAT, using comma-separated list expansion: T1 = ...

oltre 11 anni fa | 3

| accettato

Risolto

Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

oltre 11 anni fa

Risposto
Start plot errorbar() at 0 ?
You can change limits of the axis using the commands YLIM CurYLim = ylim % get the current Y limits ylim([0 CurYlim(2)])...

oltre 11 anni fa | 0

| accettato

Risposto
Editing a function to return a value that shows how many times a recursive function is called
You can add a second output argument function [result, CallN] = myFunction(n, CallN) if nargin==1, CallN = 1 ;...

oltre 11 anni fa | 1

Risposto
replace number by string
% conversion rules V(k) corresponds to S(k): V = [ 3 4 6 9 1] ; S = {'AA','B','CCC','D','EEE'} ; Value...

oltre 11 anni fa | 0

Risposto
How to normalize values in a matrix to be between 0 and 1?
This can be simply done in a two step process # subtract the minimum # divide by the new maximum normA = A - min(A(:)) ...

oltre 11 anni fa | 8

| accettato

Risposto
Hi, guys. How would one extract the lower triangle of a matrix without using the tril function and witout a for loop?
A = rand(5) ; % [c,r] = meshgrid(1:size(A,1),1:size(A,2)) trilA = A ; trilA(c>r) = 0 diagA = A ; d...

oltre 11 anni fa | 0

Risposto
Count amount of 0's and 1's in an array
Since the array is always an alternation of zeros and ones N = diff([0 find(diff(A)) numel(A)]) will produce the runs of...

oltre 11 anni fa | 1

Risposto
I need help with fixing the error in my for loop equation
You want to put the formula for H out of the loop for .. % ask for values here end % summing formula here

oltre 11 anni fa | 0

Risposto
Fibonacci program makes matlab go busy forever
The Nth matrix power of the square matrix [1 1 ; 1 0] will give you three Fibonacci numbers at once, namely the (N+1)-th, the N-...

oltre 11 anni fa | 5

Risposto
how to make string vector?
You realise that, in ML, ['18','29'] is exactly the same as the single character array '1829' ? a = [18, 29] str = sprin...

oltre 11 anni fa | 1

Risposto
how to find nearest values of all elements of a matrix to another matrix in matlab
Take a look at *NEARESTPOINT* as this function does *exactly* what you want and is pretty damn fast, if I say so myself :-) <...

oltre 11 anni fa | 1

Risposto
How can I insert missing rows in a matrix
This is not really trivial. Here is one approach: x=[1 4; 4 6;2 3;3 2;4 2;1 3] Data = x(:,2) ; SerialNumber = x(:,1) ...

oltre 11 anni fa | 0

| accettato

Risposto
Reading and separating data
My approach would be: 1) read in all the lines of the text file as strings using ';' as a delimiter C = textread('myfile...

oltre 11 anni fa | 0

Risposto
How Can I Make a Matlab Code generate multiple separate matrices
To generate one 4-by-4 matrix with a specific value you can use various approaches Value = 3 ; A = repmat(Value,4,4) ...

oltre 11 anni fa | 1

Risposto
how to find nearest values of all elements of a matrix to another matrix in matlab
A = [1 5 7 3 2 8] B = [4 12 11 10 9 23 1 15] TMP = bsxfun(@(x,y) abs(x-y), A(:), reshape(B,1,[])) [D, idxB] = min...

oltre 11 anni fa | 1

| accettato

Risposto
How to convert Hex data into decimal data?
Hexadecimal values are stored in strings in MatLab. HexValue = 'FE' hex2dec = hex2dec(HexValue) DataHex = {'B5','C...

oltre 11 anni fa | 2

| accettato

Risposto
What is Arithmetic mean filter ?
The arithmetic mean is the mathematical term for the "mean", i.e., the sum of the elements divided by the number of elements. ...

oltre 11 anni fa | 0

| accettato

Risposto
Replace String with a NaN in table
Take a look at CELL2FLOAT <http://www.mathworks.com/matlabcentral/fileexchange/19730-cell2float>

oltre 11 anni fa | 1