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Sayyed Ahmad


Last seen: 2 dagen ago

HUGO PETERSEN GmbH

38 total contributions since 2018

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Answered
How to check if an object is from a certain class object?
try this: isequal(class(a),'Box') ans = 1

14 dagen ago | 1

Answered
How to check the inputs of a user given vector
I hope I understand your problem. Try this a=[0 0 1 1]; idx=find(a==1) the answer would be: idx = 3 4

14 dagen ago | 0

Answered
Update variable value to workspace
I would try to load my variables by useing PostLoad callbacks in model Properties. Now you have access to this variables by...

22 dagen ago | 0

Answered
How do I connect to a database using a Simulink block created from a custom Matlab class?
Try to capsel your class in Matlab level2-s-function. https://www.mathworks.com/help/simulink/slref/level2matlabsfunction.html ...

23 dagen ago | 0

Answered
My nested For Loops takes 40 seconds for 20,000 records. Anyway to vectorize or improve?
You have to avoiding the nested loops. may be you can use the bsxfun to avoiding some loops. An example: A = rand(50); % 50-...

23 dagen ago | 0

Answered
Defining global variables to be used in a function and outside
I think following code can help you: classdef hC < handle properties var end end your function wold look l...

23 dagen ago | 0

Answered
How to programatically modify simulink mask values (Serial Configuration Block)
I used the following codes in a matlab level-2 s-function and It's worked. set_param(gcs,'BackgroundColor', 'red');

12 maanden ago | 0

Answered
Variable size class properties for C++ code export
The defination of var is wrong. it's ok if you write classdef inputClass properties var; b = 0 ...

12 maanden ago | 0

Answered
Physical attributes / Weight
you can create a subsystem. use ctrl.+m to create a mask for your subsystem. Now you could be able to use Parameters and Dialog...

ongeveer een jaar ago | 0

| accepted

Answered
to plot binary data for the predefined time interval
try something like this: n=0; while n<5000 for i=1:1000 t(i)=now; x=[1 0 0 1 1 1 0 0 1]; %read your x f...

ongeveer een jaar ago | 0

Answered
How can I round double-values down in a Matlab function block in Simulink?
I would programming like this: x=strsplit(datestr(now,'YYYY-mm-DD-HH-MM-ss'),'-') % instead of now you can use your time from...

ongeveer een jaar ago | 0

Answered
Fitting sum of exponential function with experiment data
you have to simplified your model to y=1-c1exp(-c2*x*t) y ist your Vt/V_inf c1 represent all other parameter outside your ex...

ongeveer een jaar ago | 0

Answered
Align different starting point to zero
try with find and index for i=1:tn ind=find(B(:,1)==number(i)) y=min(B(ind,2)); B(ind,2)=b(ind,2)-y; end

ongeveer een jaar ago | 0

| accepted

Answered
How to create a mathematical expression which contains delays using Symbolic Math Toolbox?
matlab multiplied and simplified your codes; Y = I1^2+2*(I2-4)+I1*(I3-4)+(I4-8)+5*I5 Y = I1^2+2*I2-8+I1*I3-4+I4-8+5*I5 simpli...

ongeveer een jaar ago | 0

Answered
Acces data in nested structure
if your various_substructures is an array you can access the value like follow: for i=1:5 s.var(i).val1.x=i; s.var(...

ongeveer een jaar ago | 0

Answered
App Designer: Use Tree to Browse Directory
see the help of uigetfile: "Enabling multiple file selection in the dialog: [filename, pathname, filterindex] = uigetfi...

ongeveer een jaar ago | 0

| accepted

Answered
How to draw line between specific points?
I hope the following codes are what you want: clear all close all clc A = [ 1000 1000; 1003 2640; 2323 2638; 2661 1096; 1...

ongeveer een jaar ago | 0

Answered
How to create a symmetric histogram
du you means this? A=linspace(0,pi,181); X=sin(A); Y=-X plot(A,X,'r-',A,Y,'b-')

meer dan een jaar ago | 0

Answered
How can I build power function through point?
I would do something like this: x = [52000 70000 74000 96000 100000 170000 220000 245000 530000 720000 810000 4900000]; y ...

meer dan een jaar ago | 0

| accepted

Answered
one problem about ismember function
That is not a problem of ismember function. The machine accuracy is in matlab eps >>eps ans= 2.2204e-16 to better ...

bijna 2 jaar ago | 0

Answered
Exporting from Matlab to excel with macro.
you have to use activeX in matlab to start Excel e = actxserver('excel.application'); e.visible=1; %% new Woorkbo...

bijna 2 jaar ago | 0

Answered
How can I add a point to an animation?
you need to add in your code hold on otherweise you create every time a new graph and your point is not exist anymore.

ongeveer 2 jaar ago | 0

Answered
Insufficient number of outputs from right hand side of equal sign to satisfy assignment.
x={1, 2,3} [a b c]=x{1:3}

ongeveer 2 jaar ago | 0

Answered
Overload operator doesn't work into workers
class handel is a pointer of Memory. To better understand try this codes a = ClassA(10); b = ClassB(a); a.value b....

ongeveer 2 jaar ago | 0

Answered
How do I load images from matlab to Paint Application?
if your Image called test.png you have to run this Code in matlab command !mspaint test.png

ongeveer 2 jaar ago | 0

Answered
Which one is faster: trace(a' * b) or sum(sum(a .* b', 2))?
try your code with tic for i=1:10000 %put hier your alternat 1 end toc tic for i=1:10000 %put hi...

ongeveer 2 jaar ago | 0

Answered
Strange Cell Array error
try this codes data={'8317';'10974';'14623'} for i=1:3 c2(i)=str2num(data{i}) end

ongeveer 2 jaar ago | 0

Answered
save result of each iteration in a joint table
I would use the cell-data format to save every thing. for i=1:5 x{i}=table('test',i); end

ongeveer 2 jaar ago | 0

Answered
Creating a class object with the same class name as a variable
I creat some file which is called: CLASS_Template.m and used some KEY_CLASSNAME as a key in this template. %codes of CL...

ongeveer 2 jaar ago | 0

Answered
Divide y values of two graph?
what about htis? x=1:20; x2=1:5:20; y1=x.^2; y2=x2.^3-x2.^2+0.5*x2; plot(x,y1,'b-',x2,y2,'g.-') y3=i...

ongeveer 2 jaar ago | 1

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