An open exchange for the MATLAB and Simulink user community

fzhmktr in MATLAB Answers on 15 January 2018

I have 1700 plot of data in graph. How do I plot the line of best fit? I stored the x and y data in table and the plot them. From the graph, I can see that the graph plotting is upwards. I have read other answers for this kind of question but still confused. Please help. Thank you. x = score; y = M...

Enrique Man in MATLAB Answers on 30 March 2018

I'm trying to write an equation with e, but I assume it would just take it as an undeclared variable.

MathWorks Support Team in MATLAB Answers on 18 August 2021

Why do I get the 'We have detected suspicious behavior' prompt? kA03q0000015O7gCAE 000184625

Chirag in File Exchange on 26 September 2019

This example project can be used as a reference design to get started with designing Battery Management System with MATLAB and Simulink.

Stephen Meehan in File Exchange on 21 June 2019

An algorithm for manifold learning and dimension reduction.

Jonathan LeSage in File Exchange on 28 October 2019

Online optimization of energy storage actions in a microgrid given system constraints and pricing

JY Wong in File Exchange on 26 October 2019

MATLAB-Simulink model of IEEE 33 Bus System (Baran and Wu, 1989)

ibrahim kucukdemiral in File Exchange on 24 February 2018

PID controller simulator on an LTI system w/ or w/o input delays

Saad Motahhir in File Exchange on 07 February 2017

MATLAB/Simulink Based Modelling of Solar Photovoltaic Cell, Panel and Array

Rodney Tan in File Exchange on 25 November 2018

BESS are commonly used for load leveling, peak shaving, load shifting applications and etc.

MathWorks HDL Coder Team in File Exchange on 07 December 2018

Learn how to deploy an algorithm to an FPGA using MATLAB and Simulink.

Scott Lowe in File Exchange on 24 July 2016

Cynthia Brewer's ColorBrewer palettes, ported to MATLAB, with nice interpolation.

marcel hendrix in MATLAB Answers on 22 September 2018

Rad/s is nice for mechanical people, but I'm an EE, and I much prefer Hertz. It should be something simple, but I can't find it in the help.

Cory Prust in File Exchange on 14 November 2018

Course Materials for an Introductory Analog and Digital Communications Systems Course using MathWorks-Supported Software-Defined Radio

Juan Sagarduy in File Exchange on 25 January 2016

Simscape electrolyzer converting water and electricity (wind/solar renewable sources) into H2 gas. Alkaline technology included.

Chad Allie in File Exchange on 30 September 2021

Virtual labs and mechanisms for studying controls.

Mike Zylla in MATLAB Answers on 15 April 2016

Hello, i am trying to make a bode plot of the transfer function of a twin-t notch filter, that i am analyzing. I was able to produce the transfer function, and the bode plot by hand, but i am struggling to do it in Matlab, here is what i have so far: r=320; %Resistance c=100*10^-9; %Capactiance p=(...

BlueBee77 in MATLAB Answers on 08 February 2016

I am trying to find zero-crossings of a function in Matlab and plot the points where zero-crossing occurs. However, i am not able to find an easy way. I tried and Matlab fnzeros, but i can't understand the spmak and x,y used in these function. The function for which i want to find zero crossing...

MathWorks Student Competitions Team in File Exchange on 05 September 2017

Example files for MATLAB and Simulink Robotics Arena walking robot videos.

Muhamad Mohd-Adly in MATLAB Answers on 24 March 2018

%Data Given N = 51; mu = 0.1; %Pa dt = 0.01; %delta time dr = 0.0002; %radius between the points rho = 1000; %kg/m3 k = [0,0.1,0.25,0.5,0.85]; %time R = 0.01; %m [r] = d_gridpoint(R); %Constant Break Down q = (mu*dt)/(rho*dr^2); p = (mu*dt)./(2*rho*r*dr); e = (2*mu*dt)/(rho*dr^2); aw = (q)-(p); ap ...

Big dream in MATLAB Answers on 24 October 2016

Hi everyone, right now im trying to calculate signal phases using angle(x) from FFT Function im Matlab. Noted that i've coded the program like below : %% Plotting Grafik %create a time vector 't', containing integers from 1 to n(summary of data) count= length(data); Ts=mean(diff(times1)...

MathWorks Support Team in MATLAB Answers on 11 June 2018

How can I save the MATLAB command window output to a text file? kA00Z000001DXuqSAG 000100893

Hari krishnan in MATLAB Answers on 14 February 2019

Hi, I made a plot which displays the condition of cars of a particular brand overtime. What i would like to do is to make the plot beautiful in apperance for presentation. I tried movmean, smoothing, choosing larger time intervals to avoid the jittering of the data points. But none of them helped me...

Yalun Wen in MATLAB Answers on 01 June 2017

I'm using Dell precision 7510 with preinstalled Ubuntu 14.04(I have the driver the NVIDIA). I just downloaded the MATLAB R2017a and I run into the following error. I just searched and found it's not just me who have the same problem. I wonder if this problem is fixable? To put it in another...

L. Ortiz in File Exchange on 10 January 2020

In this model, a Microgrid test system based on the 14-busbar IEEE distribution system is proposed.

Syed Rumman in MATLAB Answers on 14 September 2017

When I plot the frequency domain the power is not 3 and 5 as I expect. I read the documentation for fft() and cannot figure out how to normalize my fft properly. Can someone explain the procedure to normalize the cosines and a Gaussian wave? Thanks clear all; %generate the signal t = 0:1/2000:.02; ...

Tworit Kumar Dash in MATLAB Answers on 13 November 2018

I am a python programmer and new to Matlab. Therefore, facing some basic issues. Please help me out with this. I am pasting my code here. Error Message: Index in position 1 is invalid. Array indices must be positive integers or logical values. Error in spectrum_uncompressed (line 30) X_per_bartlett...

abdulaziz marie in MATLAB Answers on 18 January 2018

Hello i have a 54000 x 10 matrix i want to split it 70% training and 30% testing whats the easiest way to do that ?

Tyann Hardyn in MATLAB Answers on 11 December 2021

Hi, Community I wanna ask about how to do a Gaussian Filter in just 1D data.... So i have a data vector based on time series like this : And i want to filter the data by using Gaussian Filter. So, Anyone, How to do that? Thank you so much....

Hannah in MATLAB Answers on 20 August 2021

I want to ask the user if they want to EXP1 or EXP2. If the user enters '1' or '2', then I want to display "running exp 1 or 2", otherwise I want the program to display error message until the user enters '1' or '2'. prompt = input('Please enter 1 for E...

Emilie Mussard in MATLAB Answers on 05 December 2013

I need to convert my matrix [648x2400 double] into integers value to use a mRMR function, but I do not know how to do that. I have tried to convert by uint8(matrix) or int8(matrix) but it does not give integers... And I always have this note: "Undefined function 'mrmr_mid_d' for input ...

Tanya Kuruvilla in Blogs on 11 February 2025

In today's blog, Khushin Lakhara from the Student Programs team at MathWorks will explore the concept of sensitivity analysis and its significance in engineering design. Over to you, Khushin... For this blog, our attention will be on the student competition score function, especially competiti...

Johanna Pingel in File Exchange on 09 May 2018

Follow along with the code examples from the "Practical Deep Learning Examples with MATLAB" ebook

Gabriel Peyre in File Exchange on 24 October 2004

A toolbox for the computation of the Fast Marching algorithm in 2D and 3D.

Peter L Bishay in File Exchange on 16 October 2016

App that plots Mohr's circles (2D and 3D) given the state of stress.

Julianna Mather in File Exchange on 01 March 2005

Label plots with spectra. Convert wavelengths to RGB. Functions for color matching and illuminants.

Santosh Shah in File Exchange on 27 April 2007

this is the QAM modulation and demodulation tech. with speech example

Harald Hentschke in File Exchange on 05 November 2004

abfload imports data in the Axon abf format (three different recording modes).

Edisson Aldas in MATLAB Answers on 07 August 2015

Hi I've a question about matlab simulink when I run a code, there are message "MATLAB cannot run this file because c:\~~~ shadows it. delete shadowing file and try again" what's the problem? And why this happen??

Syed Abdul Rahman Kashif in File Exchange on 11 August 2010

Model of PMSM

Rajesh Arasada in MATLAB Answers on 16 September 2015

How can I download 2011b version of MATLAB?

Krish Desai in MATLAB Answers on 08 November 2015

This keeps coming up as an error, what am I doing wrong? prompt= 'State your name, Your Grace '; name=input(prompt);

Amy in MATLAB Answers on 06 February 2014

I'm new to MATLAB and am still getting used to the workspace. When I open a new file or script, it always comes out in a new window. How can I get it to be opened in the same window as the commands? Thanks!

Zynk in MATLAB Answers on 06 February 2015

Let's say I am working in the directory: /home/username/Matlab/ I want to save (in a script) the directory one above the one I am working in (to use it later in the script), so: newdir='home/username'; But I am working in different computers, so the 'username' changes, thus I wa...

N/A in MATLAB Answers on 30 July 2015

Hello , I want to concatenate string and number in for loop requestID = Req_Check; for k = 1 : 10 requestID = requestID +1; end I am expecting requestID after for loop like Req_Check_1, Req_Check_2 ...Req_Check_10 How can I do this?

Harish Maradana in Cody on 07 March 2013

Given a matrix, swap the 2nd & 3rd columns If a = [1 2 3 4; 1 2 3 4; 1 2 3 4; 1 2 3 4];then the result is ans = 1 3 2 4 1 3 2 4 1 3 2 4 1 3 2 4Perform a simple swap of the two middle columns. %%x = [1 2 3 4;1 2 3 4;1 2 3 4;1...

Fatima Al Marzoqi in MATLAB Answers on 08 July 2014

I closed the "Current Folder" window by mistake. How can I re-display it?

Tanya Kuruvilla in Blogs on 01 February 2018

© kreutzweise.de Great ideas don’t always stand the test of time. It may be due to some drawbacks that knock out the great advantage, or it simply is too expensive or difficult to implement. The following article will share a contradicting example. Enjoy this engineering success story of originalit...

NAVNEET NAYAN in MATLAB Answers on 02 October 2021

I have two categorical column vectors of size 872-by-1. I want to calculate the Levenshtein distance between these two. When I am using the command 'editDistance' for this I am getting an error as "Argument 1 must be a string array, a character vector, or a cell array of character vect...

Ali Deniz in MATLAB Answers on 09 November 2021

y25=[1.875000000000000,3.046875000026040] How can I add 0 (zero) to the beginning of this array? I want to get the array y25=[0,1.875000000000000,3.046875000026040] Thank You.