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Akbar


33 total contributions since 2014

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Question


How to create the same png icon but with a different color?
Here is a .png of a button icon. I need exactly the same icon, with the same style but a green color. How can I achieve that?...

9 months ago | 2 answers | 0

2

answers

Answered
Step response due to input changes
Maybe try in Simulink, using the Signal builder block you can create Input as you want. <</matlabcentral/answers/uploaded_fil...

1 year ago | 0

Answered
find_system(Search_Path,'SearchDepth',1,'BlockType','Inport'); what does this function do? specially what is search depth and value 1?
It is used to get paths to particular blocks in simulink model. In this case, your command will search for all blocks of type "I...

1 year ago | 0

Question


Need help with symbolic variables (if else statement)
if a > 10^-8 switch1 = b; else switch1 = 0; end i get the following error: Conversion to logical ...

1 year ago | 2 answers | 0

2

answers

Question


Stuck with symbolic variables
How to correctly assign symbolic values to the selected elements of an Array? syms a b c x = [a;b]; c([1 2]) = x; ...

1 year ago | 1 answer | 0

1

answer

Answered
Could anyone help me how to type different symbols for the legend in the graph
LS = {'-v','-^',':','-.','-o','-','-+','-*','x','-square','--+'}; plot(1:10,ones(1,10),'-<','color','black') hold on ...

1 year ago | 0

Question


How to get the order indices in a character array?
Here is my cell Array, consider it as an input: ans = 7×1 cell array {'x_air' } {'v_air' ...

1 year ago | 3 answers | 0

3

answers

Question


How to make ode15s not to cross zero?
Here is the solution to a differential equation by simulink(ode15s, orange) and matlab(ode15s, blue). The solution mustn't cros...

1 year ago | 2 answers | 0

2

answers

Question


I'm stuck with this proplem. Variable used before it's defined.
I have a differential equation(ODE) represented as a directed graph. The ODE is not known, only its graph representation is gi...

1 year ago | 1 answer | 0

1

answer

Question


Variable might be used before it's defined. How to workaround?
I am writing a matlab script. Code analyzer underlines one of the variables in red and says that, Variable might be used befor...

1 year ago | 1 answer | 0

1

answer

Question


Represent the 'Selector' block in simulink as matlab code?
How to represent the 'Selector' block in simulink as a matlab code? For ex.: 'Sum' block could be coded like 'out = in1 + in...

1 year ago | 1 answer | 0

1

answer

Answered
formula behind nlinfit function
<https://www.mathworks.com/help/releases/R2017b/stats/nlinfit.html?s_tid=doc_ta#btl_944-7 Read section 'more about'> And there...

1 year ago | 0

Question


How to print cell contents into m-file?
I Need to Combine These two variables and print in m-file. |inputs| and |signs| length may vary. |signs| can only contain multip...

1 year ago | 2 answers | 0

2

answers

Question


How to write cell array contents into m-file as shown below?
I have a cell Array vector as attached (length may vary). It contains variable names. mycell = 5×1 cell array {'x' ...

1 year ago | 1 answer | 0

1

answer

Question


How to create a variable from cell array contents?
I have a cell Array vector as attached (length may vary). It contains variable names. mycell = 5×1 cell array {'x' ...

1 year ago | 1 answer | 0

1

answer

Question


Why there is no space after the equal sign? (fprintf)
fprintf('%s \n',strcat('s',' = ','1000',';')); Output: s =1000; Desired: s = 1000;

1 year ago | 2 answers | 0

2

answers

Question


Why the first cell is printed in one row and second in two? (fprintf)
Why the first cell is printed in one row and second in two? I want the second cell to be printed in one row, same as first. ...

1 year ago | 1 answer | 0

1

answer

Question


fprintf a long cell array vector into the file
I have |1x43| cell Array where each cell contains string (variable name), size can vary but it's always a vector. So in this c...

1 year ago | 1 answer | 0

1

answer

Answered
I have a text file having 7 columns. First column is UTC time in hours. This file is having data for almost 1 month. i need to separate data day wise and save it to different day . whenever first column value is > than 0.00, a new day is starting
First I have imported your data to matlab using its 'import data' tool. And created a table called 'anci'. Whose size is |5003x7...

1 year ago | 0

| accepted

Answered
hi can you teach me how to plot teh below response with simulink
You can use the "signal builder" block which is found in "sources" of simulink library. Just double click on it and start creati...

1 year ago | 0

| accepted

Answered
How to plot a heat map with three vectors?
I have made some modifications. The heatmap below Shows highest temp. each hour of a month, for two years. <</matlabcentral...

1 year ago | 1

| accepted

Answered
matlab code for histogram
<</matlabcentral/answers/uploaded_files/119543/untitled.png>> A=[0.1;0.3;0.5;0.6;0.2]; B=[0.8;0.6;0.9;0.4;0.7]...

1 year ago | 0

| accepted

Question


Preallocate a variable of unknown size
Please help to preallocate the variable "D". Its size is unknown. clc; D = {}; Di = []; r = 1; N = length(nodes...

1 year ago | 1 answer | 0

1

answer

Answered
How do I repeat a for loop for all columns?
Try this. You should use two arguments (i,j) i=row number. j=column number. And one more "for" Loop, for the columns. n_ste...

1 year ago | 0

| accepted

Question


fprintf cell array if its size changes
I want my cell Array to appear in matlab file. But the Array size may Change from time to time and I have to Change the number ...

1 year ago | 1 answer | 0

1

answer

Answered
how to form branch to node incidence matrix by using tree
G = digraph([1 2 2 2 3 4], [4 1 3 4 1 3]); G.Nodes.Name = {'a' 'b' 'c' 'd'}'; h = plot(G); labelText = {'6' '3' '2' '...

1 year ago | 1

| accepted

Answered
What does the step response plot in PID tuner indicate ?
"Reference tracking" is when the Controller Parameters are tuned to follow the reference. And there is another Approach too: "Di...

1 year ago | 1

| accepted

Question


How to generate function handle automatically from the cell array?
I have a 2x1 cell called "dx", which contains 1x3 cells: 'X * k * m' '*' '-1' 'X * k * m' '*' 'Y_XS' I want this "d...

1 year ago | 1 answer | 0

1

answer

Question


Using image processing tool measure the angle
UsingMATLAB image processingtool, measure the angle between the connections for the following figures. <</matlabcentral/...

1 year ago | 4 answers | 0

4

answers

Question


Performance Problem in Simulink (why is it slower than matlab?)
I have compared Solutions to the same ODE in matlab and simulink. Simulink took 7.6 sec. while ode15s in matlab took 1.4 sec. to...

1 year ago | 1 answer | 0

1

answer

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