rifat

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How can I select a random element in a row of matrix?
Assuming the data is in 'row' col=1+floor(rand()*length(row)) % column number of the randomly selected element ele...

casi 11 años hace | 0

Respondida
greek symbols in matlab figures
plot([1 2 3],[1 2 3]); xlabel('\mu') ylabel('\nu') title('\sigma')

casi 11 años hace | 2

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FINDING FREQUENCY AND AMPLITUDE OF A SINUSOID FROM DATA POINTS.
len=length(signal); fs=50 % assuming you know the sampling frequency of your signal n=0:len-1; N=n*fs/(len-1); % conv...

casi 11 años hace | 1

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Help me how to calculate sum of series ?
You can not add infinite number of terms. If the sum is a converging sum, then you can add a large number of terms (e.g. n=5000)...

casi 11 años hace | 3

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delete same number every two number while keeping the original order
a(end+1)=a(end)+1; x=diff(a); p=find(x~=0); a=a(p)

casi 11 años hace | 0

Respondida
How to plot multiple iterations on the same axes?
first, write figure; hold on; then use a loop. witing each iteration plot your curve. plot(s_x_index,f_x)

casi 11 años hace | 0

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How do i add all the values which i get using eval function?
prompt = {'Enter the forces(kN): '}; title = 'Environmental forces'; answer = inputdlg(prompt,title); f = str2num(ans...

casi 11 años hace | 0

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How to give axis labels in plotyy comand while it is used in subplot(2.1.1)...........
x = 1:5; y1 = 1:5; y2 = 5:-1:1; figure subplot(2,1,1) [ax h1 h2]=plotyy(x,y1,x,y2); ...

casi 11 años hace | 0

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Problem with subplotting the results
you are using i as an index, then displaying it as an image using imshow.. what it 'i'? If it is an image, then use a different ...

casi 11 años hace | 0

Respondida
Why does it gives matrix dimension must agree?
You are not dividing element by element. Use the following lines instead: R=3e-7:1e-7:10e-7; V=0.5; Vth=0.011*V+(1.3e...

casi 11 años hace | 1

Respondida
how do i use the values read by the eval function in other formulas?
prompt = {'Enter the forces(kN): '}; title = 'Environmental forces'; answer = inputdlg(prompt,title); f = str2num(ans...

casi 11 años hace | 0

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Respondida
Fast way to read text file of formatted data
I did a similar thing before. Hope this helps. result will be on the variable mat. fclose('all'); fid=fopen('fileNam...

casi 11 años hace | 0

Respondida
how to store value from loop
Your index isnt integer.. Use the following modification. And your program isnt self sufficient for me to execute. idx = ...

casi 11 años hace | 0

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How do I perform numerical integration containing multiple variables?
Since it is not a double integral, you want to integrate f(x,y) at a particular value of y=y1. Evaluate the function at y=y1. Th...

casi 11 años hace | 0

Respondida
String value and sequently representation
M=['XASSANORXOOUOU']; for i=1:length(M)/2 string=['L' num2str(i) '=M(2*(i-1)+1:2*i)'] eval(string) end...

casi 11 años hace | 0

Respondida
String value and relate with number.
A=21;B=12;C=8;D=7; W=['DABCD']; Z=W(1:3); string=[Z(1) '*' Z(2) '*' Z(3)]; eval(string)

casi 11 años hace | 0

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How to read data from xml files? (Loop all Parent and child nodes and get entire data to Excel)
Use xmlread() function. see the documentation. http://www.mathworks.com/help/matlab/ref/xmlread.html

casi 11 años hace | 0

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How can I perform QPSK modulation of an .mp3 / .wav file ?
sounds like an assignment problem. anyway... 1. read file using wavread() 2. use modulate() to apply QPSK modulation 3. use ...

casi 11 años hace | 0

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Respondida
Received signal not on sampling time
I think the following script should do the work: signal_vector= [1 1 1 1 1]; % Define your signal here Ts=1/50; % Define...

casi 11 años hace | 0

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How can I find a connected path on a matrix by Random Search?
Hope the following function helps. function[]= randSelection(mat) [r c]=size(mat); list=1:c; for ...

casi 11 años hace | 0

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Respondida
How to determine significant wave height from time series data in Matlab>
I dont know what it means by "significant wave height". But if you are trying to detect the peaks in a time series then try the ...

casi 11 años hace | 0

Respondida
how to make the output from a for loop displayed in an horizontal pattern
Use fprintf() instead of disp() within for loop. For example, fprintf('%d ',z);

casi 11 años hace | 1

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Respondida
need to convert excel (time domain data ) to frequency domain data
Assuming the Excel file contains time data in column 1 and acceleration data in column 2 % read data data=xlsread('fileN...

casi 11 años hace | 0

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Respondida
How to separate noise from signal?
You can pass your signal through a bandpass filter centered around the frequency of your original (without noise) output and adj...

más de 11 años hace | 0

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Changing variable in a looped code
for i=1:3 string=['plot(x' num2str(i) ',y);']; eval(string); end I think this will do

más de 11 años hace | 0

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How we can convert negative float value into binary in matlab? Is there any direct command for this?
You can consider two things. 1. consider changing the quantization of the number and convert the numbers into int16 format wh...

más de 11 años hace | 0

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How to set my own row and column labels in 'imagesc' fcn
Are you talking about labels or XTickLabels? If it about labels then you can simply change it by using xlabel command and con...

más de 11 años hace | 0

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Composition of Functions and Sequence
1.2 - Try to use finverse 1.3 - Use loops to solve N=3; % number of terms v=sqrt(2); for i=1:N-1 v=sqrt(2+v...

más de 11 años hace | 0

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