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Nora Khaled


Last seen: etwa ein Monat ago
54 total contributions since 2017

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Answered
How to write matlab code that result odd component zero?
%vector of random integers v1=randi(10,10,1); %find odd number and replace by zero v2=v1; v2(mod(v2,2)~=0)=0; [v1,v2]

etwa 2 Monate ago | 0

Answered
Index exceeds the number of array elements (1).
can't run your code because it need to open file. But check the sizes x1_rec, y1_rec, x2_rec, and y2_rec. it seems that you ...

etwa 2 Monate ago | 0

Answered
Fill a vector with two vectors
v1 = [3 8 6 7]; v2 = [1 5 9 4]; r=[]; for i=2:1:length(v1) r=[r v1(i) v2(i)]; end r

etwa 2 Monate ago | 0

Answered
Reading Multiple sheets to different data sets
this may help https://www.mathworks.com/matlabcentral/answers/300842-importing-data-from-excel-across-multiple-sheets-and-file...

2 Monate ago | 0

Answered
Thickness of height profile in Matlab
Try this % to plot vertical line xAxis=1.25 ymin=B % min point ymax=A %max point line([xAxis xAxis], [ymin ymax]); % ad...

2 Monate ago | 0

| accepted

Answered
A bouncing circle on a 2d plot, how to plot a cos2 function
In your code you have b= r+hmax/2*(cosd(t).^2)+hmax/2; which I think is the trajectory of the ball. and if you plot it you ge...

2 Monate ago | 0

Answered
how to fprintf and disp on the same line
disp always starts new line afterward. you should only use fprintf and '\n' if you want to end the line fprintf('The number ...

2 Monate ago | 0

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Answered
How do I fix this error to output the correct data? I get an error when I use disp.
if the error in "disp", use fprintf(formatSpec,A1,...,An) or maybe this works X=['You caught ' , wholeFishWeight , ' kg of f...

2 Monate ago | 0

Answered
How to enter intermittent entries in a vector
a=1:1:6; v=[]; for i=1:2:length(a) v=[v a(i) a(i+1) 0 0] ; end v

2 Monate ago | 0

| accepted

Answered
Vector access and manipulation
do you only discard the function output for a vector of all zeros? or for zero elements. why not use if-else f =@(x) x.^2; Ve...

2 Monate ago | 0

Answered
Why I get ans = logical 1
in your last case you use else then put a condition. you should either use "elseif" or no condition.

2 Monate ago | 1

| accepted

Answered
How to display graphically
not sure this is what you had in mind ... %Environment envSize=4; figure; x=-envSize:0.1:envSize; y=.5*sin(x); plot(y,x,'...

2 Monate ago | 1

| accepted

Answered
why reading .xls file using xlsread returns empty variables?
The problem is the data is not in the first sheet of the .xls file. I needed to sort the xls sheets before using [ndata, text...

2 Monate ago | 0

| accepted

Answered
How can I modify negative values from two datasets based on a positive given one?
maybe this works ? if i == 1 y=y+(x-y); Coeff(i) = abs(max(y)/max(x)); else Coeff(i) = abs(max(...

2 Monate ago | 0

Question


why reading .xls file using xlsread returns empty variables?
Hello I have some data in a .xls file. the file content is four colunms. the first row is a header then all others are numbers....

2 Monate ago | 1 answer | 0

1

answer

Answered
How do i read audio and include it in my function?
check out this function [y,Fs] = audioread(filename) it reads data from the file named filename, and returns sampled data, y,...

2 Monate ago | 0

Answered
How do I add a text string after my contour labels?
If I understood your problem correctly... I think the answer in this question will help you https://www.mathworks.com/matlabcen...

2 Monate ago | 0

Answered
compare and sort element in two arrays in matlab?
Try this code... I hope I understood the problem correctly clc; clear all; %function c = @(x) x.^2; %data a=[3 1 2];...

2 Monate ago | 0

Answered
How can I get a smoothing line like Excel?
I tried the answer to this question https://www.mathworks.com/matlabcentral/answers/411231-connecting-data-points-in-a-smooth-...

2 Monate ago | 0

| accepted

Answered
How do I create a multiline plot using values from a table?
If I understand the problem correctly this might help % creating tabel exampel col1 = {'A';'B';'C';'D';'E'}; col2 = [1:1:5]...

2 Monate ago | 0

Question


problem in converting a matrix of integers to vector of integers using str2num and num2str
Hello, I have a matrix x of this form (these are example values) 1 0 0 1 0 0 1 0 0 0 0 0 0 0 1 1 0 0 1 ...

2 Monate ago | 1 answer | 0

1

answer

Question


How can I read csv file data correctly? I tried multiple ways
Hi I have a csv file and I am trying to import it to matlab. an example for the file content is the following (this is one row...

3 Monate ago | 2 answers | 0

2

answers

Question


changing the activation function to ReLU? nntool command.
Hi ! I want to build a neural network such that it consist of 3 layers ( 2 ReLU layers and an output layer) with 10 neurons i...

9 Monate ago | 0 answers | 0

0

answers

Question


Question about estimating an LTI system matrices using system identification toolbox.
Hi ! I would like to ask about the the system idintification toolbox. In my problem I used linear parameter varying model...

9 Monate ago | 0 answers | 0

0

answers

Answered
how to find value of x for a known value of y(x), using fplot?
The only way I was able to do this is to change z(x). insted of having all the lines in one plot. I created a loop such that a...

11 Monate ago | 0

| accepted

Question


How to scatter/plot a vector vs a cell array ?
Hello, I have a vector w such that w=0:0.1:5 I use this vector to get values saved in a cell array. such that for each el...

11 Monate ago | 1 answer | 0

1

answer

Question


how to find value of x for a known value of y(x), using fplot?
Hi ! I am using the function fplot to plot 5 functions. and the plot is working good. now for each function I am trying to...

11 Monate ago | 1 answer | 0

1

answer

Question


How to keep the slider position the same after retrieving its value?
Hi ! I am using a slider and a pushbutton to get the value from the slider. but each time the push button is pressed the pos...

11 Monate ago | 1 answer | 0

1

answer

Question


How to run functions in GUI opening function and pass variables?
Hi ! I would like to do the following (not sure if it is possible) : I would like to create a GUI and in the GUI_OpeningFc...

12 Monate ago | 0 answers | 0

0

answers

Question


How to run matlab script within GUI file then wait for the GUI input in the script ?
Hi ! I have created a matlab script ("main.m") which with a loop. In each iteration I call a matlab GUI slider to get an in...

etwa ein Jahr ago | 0 answers | 0

0

answers

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