rifat

Last seen: 3ヶ月前 | 2013 年からアクティブ

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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...

10年弱前 | 0

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

10年弱前 | 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...

10年弱前 | 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)...

10年弱前 | 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)

10年弱前 | 0

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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)

10年弱前 | 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...

10年弱前 | 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); ...

10年弱前 | 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 ...

10年弱前 | 0

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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...

10年弱前 | 1

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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...

10年弱前 | 0

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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...

10年弱前 | 0

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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 = ...

10年弱前 | 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...

10年弱前 | 0

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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...

10年弱前 | 0

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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)

10年弱前 | 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

10年弱前 | 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 ...

10年弱前 | 0

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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...

10年弱前 | 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 ...

10年弱前 | 0

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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 ...

10年弱前 | 0

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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);

10年弱前 | 1

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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...

10年弱前 | 0

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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...

10年以上前 | 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

10年以上前 | 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...

10年以上前 | 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...

10年以上前 | 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...

10年以上前 | 0

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