Community Profile

# Steven

Active since 2011

All

#### Content Feed

View by

Question

Multiobjective genetic algorithm stopping criteria
Hi, I want to optimize an objective function which returns 3 values [y(1), y(2), y(3)] using gamultiobj toolbox. I set up the...

ongeveer 7 jaar ago | 1 answer | 0

### 1

Question

Compare 2 vectors together
Hi, Let's say we have 2 vectors of different lenght, values (but there's not 2 values identical in the same vector) and not s...

ongeveer 10 jaar ago | 1 answer | 0

### 1

Question

how to switch the value of a boolean.
Hi, is there any function to do the following : a = true; b = someFunction(a) ==> b = false b = sumeFuncti...

ongeveer 10 jaar ago | 2 answers | 0

### 2

PI Controller tuning
Any idea folks ?

meer dan 10 jaar ago | 0

Question

PI Controller tuning
Hi, I have a second order Transfert Function that I would like to control with a PI. My problem is how to set the proportiona...

meer dan 10 jaar ago | 2 answers | 0

### 2

Question

manage time computing
Hi, I would like to manage the computing time of a function. For example : function y = myfun(x) y = something_long_t...

bijna 11 jaar ago | 1 answer | 0

### 1

Question

how to organize your code in blocks
hi, I wonder if it's possible to regroup (minimize) some parts of your code. Matlab offers this with for loop, but could it be ...

bijna 11 jaar ago | 2 answers | 0

### 2

the block I was looking for was index vector

bijna 11 jaar ago | 0

| accepted

Question

vectorization
hi, is there a quick way to change the values of the diagonal of a matrix, instead of for i = 1:length(A) A(i,i) = 0;...

bijna 11 jaar ago | 2 answers | 1

### 2

Question

How to pick a value according to its probability
Hi, Let's say P = [0.1 0.3 0.4 0.2] X = [1 2 5 9] where P(n) is the probability to select the X(n) element. I wish...

bijna 11 jaar ago | 4 answers | 1

### 4

Question

Easy question with probability
Hi, Let's say P = [0.1 0.3 0.4 0.2] X = [1 2 3 4] where P(n) is the probability to select the X(n) element. I wish...

bijna 11 jaar ago | 2 answers | 0

### 2

Polynomial
f = @(x,y,z)(x+y+z); or f = inline('x+y+z', 'x', 'y', 'z'); or function f = myfun(x,y,z) f = x+y+z; return g...

bijna 11 jaar ago | 1

Heat transfer
Hi, You should take a look at MLE+. It's a toolbox wich make the connection between Matlab and EnergyPlus. Obviously, you need ...

bijna 11 jaar ago | 0

| accepted

Question

Hi, I'm looking for the right way to set a conditional statement in Simulink. That's the pseudo-code I wish to have: if ...

ongeveer 11 jaar ago | 2 answers | 0

### 2

TeX (LaTeX math mode) symbols in legends and labels in MATLAB figures
Try with Latex interpreter, something like title(['\$ latex \$'],'interpreter','latex')

ongeveer 11 jaar ago | 0

for loop
value = 1:10; skip = [4 6 9]; value(skip) = []; for i = value ... end

ongeveer 11 jaar ago | 1

for loop
one way could be to specify manually the values: for i = [1 2 3 5 7 8 10] ... end

ongeveer 11 jaar ago | 1

Question

plot different color
Hi, Let's say I have x = 1:100; y = sin(x); I wish to plot it in blue but if y is superior at 0.5, I want that the plot chang...

ongeveer 11 jaar ago | 2 answers | 1

### 2

Question

simple operations
Hi, I'm seeking the way to erase repeated value into vector, like this: a = [0 0 1 2 2 2 7]; b = something(a); b = [0 1 2...

ongeveer 11 jaar ago | 1 answer | 0

### 1

close terminal window
I got it, I thought matlab could do it by itself, but instead I modify the batch file of the program.

ongeveer 11 jaar ago | 0

| accepted

close terminal window
Yes, if I type exit in the terminal, it close the windows.

ongeveer 11 jaar ago | 0

Question

close terminal window
Hi, I make a program wich open the terminal window(C:\WINDOWS\system32\cmd.exe) at each time it's fired. I use it in a loop, so...

ongeveer 11 jaar ago | 4 answers | 0

### 4

Question

Vector operations
I'm looking for something that can repeat a vector without. For exemple, here a is repeated 4 times : a = [1,2,5]; b = cell...

ongeveer 11 jaar ago | 1 answer | 0

### 1

Dumb mistakes we make with MATLAB.
I often use != instead of the unusual ~=

ongeveer 11 jaar ago | 2

Unable to get all the points graphed.
you miss an hold on: plot(n1,beta); hold on; will be better.

ongeveer 11 jaar ago | 0

ploting x,y coordinates in time
x = [X1, X2, ...]; y = [Y1, Y2, ...]; plot(x,y); ???

ongeveer 11 jaar ago | 0

Good programming practice...
However, the difference seems to be indistinguishable considering a certain precision whatever the number of repetitions. t...

ongeveer 11 jaar ago | 0

Need help creating a loop
clear all; clc; eps = 50; % precision piOn4 = 1; for i = 1:eps piOn4 = piOn4 + (-1)^(i)*(1/(2*i+1)) end ...

ongeveer 11 jaar ago | 2

Question

Cell conversion to double
Greetings, Let's say a is a 11x1 cell like this a = '0.000000' '1.000000' '2.000000' '3.000000' ...

ongeveer 11 jaar ago | 2 answers | 6