Tagged Questions
0
votes
2answers
19 views
MATLAB: How do I graph multiple functions on the same graph?
How can I graph multiple functions on the same graph/plot/Cartesian plane on MATLAB with domain and range restrictions?
For example I made up the following functions below. How would I graph the ...
1
vote
0answers
20 views
How To Change The Parameters Of A Function In Real Time With Matlab
I'm working on a sound modifier that would:
1) Get inputs from a user (X,Y)
2) Apply effects to a predetermined sound file using the X and Y
The code is a bit hard to follow so I'll not post it ...
0
votes
1answer
21 views
How do I input an image name into a function in MATLAB?
Basically, what I'm trying to do is run the following function directly from the command window in MATLAB. My function itself is:
function reconstruct_2(im_input,d,c,k)
rgbpic = imread(im_input);
...
-4
votes
1answer
31 views
How to plot a several functions in matlab for n converges to infinity? [closed]
Can anybody help me and tell me how to plot these functions in matlab:
n!*log(n)
sqr(n)
(n+1)!
log^2(n)
n
log(n^n)
Where n is a natural number and converges to infinity?
-2
votes
0answers
33 views
Could someone help me with this function plot? [closed]
I have the math relations between Pc, N and CW, as shown in Fig. 1.
Now I want to set Pc's value as 0.05, and plot the function of N and CW. (the first equation in Fig. 1 changed to 0.05=1-Pt-Pi, and ...
0
votes
1answer
27 views
How to call an m file from another m file in MATLAB and retrieve an output?
I know this is a simple question, but for some reason I can't find a straight answer that works no matter where I look.
Basically, I have 4 values that were found in one m file, and I want to run ...
1
vote
1answer
25 views
Saving return values of function returning multiple variables in Matlab
I have never used matlab before so excuse this very basic question.
Basically I have a function that returns multiple variables, defined like so:
function [a, b, c]=somefunction(x, y, z)
I know I ...
3
votes
1answer
34 views
how to control return variable in matlab
i want to clarify how to control returning of variables from function in matlab,for exmaple let us consider this code
function [x y z]=percentage(a)
n=length(a);
maximum=0;
minimum=0;
...
0
votes
0answers
37 views
Filling a matrix, the same way as “fill.m” fills a figure
I'd be glad if someone could tell how to fill a matrix the same way as the function "fill.m" fills a figure.
Is there an already existing function in Matlab which does this already?
An alternative ...
0
votes
1answer
15 views
MATLAB function open works in workspace, but not in function
I am trying to create a video file with MATLAB. Here is my function:
function [vidObj] = createVideo(frames, frameRate, filename)
%Create video object
num_frames = size(frames,2);
vidObj = ...
0
votes
1answer
31 views
Matlab - Access the output a function inside another function
I am trying to access the output of a function from another function. I have the following fucntion:
function f = doSomething
f = 5+6;
In another function I'm calling doSomething as follows:
...
0
votes
1answer
48 views
How to access inbuilt functions?
As what should I be typing in the Command Window to get the function file to open?
Usually I get a link to them when debugging and an error occurs, but what command can be used to access them ...
-1
votes
2answers
57 views
How can I do multithreading in my own function? [closed]
I am having Intel Core i3 - 2350M Processor 2.30 GHz Processor, 2 GB RAM, 320 GB Hard Drive and MATLAB R2011a. I want to do multi threading in my own function explicitly. So that I can execute one ...
0
votes
2answers
43 views
Converting a matrix in a text file to a grayscale image
So I'm a bit confused about something. I created a function in C to calculate some values and store them in a matrix file. This matrix file opens in notepad and contains rows and columns of float ...
3
votes
1answer
50 views
Matlab error : ??? Subscript indices must either be real positive integers or logicals
I've a problem with a function that I've written by myself. I've not found in any question how to solve it by myself so I post it here hoping that someone's going to see what I didn't see... (It's my ...
0
votes
2answers
34 views
Changing values in matrix in matlab via a function call
I have a matrix full of zeros. I would then like to change one 0 at a time to the value one. It has to be me deciding which element I would like to change. I have tried the following:
classdef ...
1
vote
2answers
82 views
How to installed “not found” function on Matlab?
I am using Matlab R2010a on Windows 7 64 bit machine.
When I was using imfindcircles function, I got some error.
>> [centers, radii] = imfindcircles(image,[100 400],'ObjectPolarity','dark')
...
0
votes
1answer
38 views
Storing data in matrix format in simulink
Is it possible to store data in a table or matrix format during the simulation? I have created a enabled subsystem inside which is a embedded function block. Whenever the subsystem gets enabled( on ...
0
votes
0answers
96 views
Matlab Translation “circshift” function [closed]
Hi I have a part to do in a coursework and i am having difficulty understanding it can someone please just point me in the right direction?
What i have done so far is seperate an image into three ...
-1
votes
1answer
27 views
Error in Matlab, calling a function
The errors are:
Error in getvalues (line 4)
faceNoNoise = wiener2(x, [5 5]);
Output argument "mouthTall" (and maybe others) not assigned during call to "C:\Users\Trent\face\getvalues.m>getvalues".
...
0
votes
1answer
49 views
Find the index of numerically closest value [duplicate]
Say I have 2 matrices in matlab :
A = [1 4 6 9 11 13 15 18 21]
B = [2 10 19]
Is there a function I can use so that, for every element in B, I am able to find the index of the closest value to ...
0
votes
1answer
69 views
MATLAB GUI Programming with ODE
I am new to programming and I have to create a matlab gui code with ordinary differential equations (ODE) then graph said equation. The problem I am having is the format where a function for the ode ...
0
votes
1answer
53 views
Function error in MATLAB
I'm pretty new to MATLAB and I have the following code:
a=500;
PI=3.14159265;
radconvert=PI/180;
degconvert=180/PI;
% values at t=9, t=10 and t=11 respectively
alpha=[54.80 54.06 53.34];
beta=[65.59 ...
0
votes
0answers
65 views
Matlab - 3 parameters model fitting to experimental data
I collected some experimental data which gave me two vector: hits and false alarm.
What I need to do now is to use matlab to fit a specific model (see the model details below)
to this data and see ...
1
vote
1answer
28 views
Matlab different function over different intervals
I would like the function y to be zero if temp is less than 0.5 and exp(x) otherwise.
However what i tried below just sets all of y to zero. Any suggestions?
x = 0:.01:2;
tmp = x.^2;
if tmp<0.5
...
1
vote
2answers
57 views
Mathematica Table function to Matlab
I need to convert this to Matlab code, and am struggling without the "table" function.
Table[{i,1000,ability,savingsrate,0,RandomInteger[{15,30}],1,0},{i,nrhhs}];
So basically, these values are all ...
5
votes
3answers
77 views
Distinguish between scripts and functions programmatically
Given a file name, how can I programmatically distinguish between scripts and functions in MATLAB?
If I attempt to pass an argument to a script, I get Attempt to execute SCRIPT somescript as a ...
0
votes
2answers
78 views
Matlab: how to write a vector of a few points as a continuous function?
I have two vectors:
x = [0; 1; 2]
y = [2.0000; 0; -14.7781]
If I will plot x and y I will see three points on the xy-plane. But I want to connect those three points and get them as a continuous ...
1
vote
1answer
18 views
Symbolic function input non-symbolic parameters
I need to define a function that returns a symbolic matrix (sym). It takes 4 input parameters- 2 symbolic matrices, and 2 integers. How do I do that?
This is what I was trying to do-
%my function
...
0
votes
1answer
133 views
How can I convert cartesian coordinates to polar coordinates using function
I'm trying to create a function in MATLAB that takes a cartesian coordinate and converts it to polar.
function [homework5] = Cartesian(X,Y)
M = size(X,1)
for N=1:M
if X,Y;
r=sqrt(X^2+Y^2)
...
