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Vivek Selvam

Last seen: 23 days ago Active since 2013

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Answered
MATLAB Coder for FSK Demodulation
Hi Mounika, Code generation is successful when using Name-Value pairs for comm.FSKDemodulator as follows: fskDemod_M = comm.FS...

4 years ago | 0

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Answered
SAMSUNG GALAXY S4 CANNOT run simulink model on it
This is because the <http://www.mathworks.com/help/releases/R2015a/simulink/slref/display.html Simulink Display> blocks are not ...

9 years ago | 1

Answered
introducing a new variable
<http://www.mathworks.com/matlabcentral/newsreader/view_thread/315950 Hope this link helps.>

10 years ago | 1

Answered
Why isn't my color assignment working in this bar graph?
<http://www.mathworks.com/matlabcentral/answers/99092 This link says how to.> Hope the following illustration helps. Slope...

10 years ago | 0

Answered
create a new matrices by using existing matrices
Hope this helps. x = a(:,1) y = a(:,2) want = [2 3 4] choose = ismember(x,want) & ismember(y,want) ...

10 years ago | 0

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Answered
can you help me to programming algorithm of x^n and n! ,and plotting in same figure
This may help you get started doc hold doc factorial doc power vectorization : http://www.mathworks.com/help/matla...

10 years ago | 0

Answered
Making a heat map from three vectors
You may find this useful. http://www.mathworks.com/matlabcentral/newsreader/view_thread/21043

10 years ago | 0

| accepted

Answered
Z must be size 2x2 or greater. HELP
1. |T5| needs to be a matrix but is a vector. Check |size(T5)|. You would want to change the order of these lines from ...

10 years ago | 1

| accepted

Answered
Formatting Multiple Curves in One Plot
Try plot(x,y1,x,y2,...,x,yn) instead of plot(x,[y1 y2 ... yn]).

10 years ago | 0

Answered
collect data from a text file without a uniform structure
Since the file is not uniform, you would need a loop to process line by line. Following is a way you can try: filename...

10 years ago | 0

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Answered
Did not find solar cell block in 2010a, 2011a and 2013a matlab
The solar cell block is available under SimElectronics library. To check if it is installed, type |ver| in the matlab comman...

10 years ago | 0

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Answered
index out of bounds because size(yout)=[0,0] / optimization with fmincon
In your code, you have initialized |yout| to an empty matrix ( |yout| = |[]|). Then in function |trackmmobj|, you are trying to ...

10 years ago | 0

Solved


Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

10 years ago

Solved


Bullseye Matrix
Given n (always odd), return output a that has concentric rings of the numbers 1 through (n+1)/2 around the center point. Exampl...

10 years ago

Solved


Nearest Numbers
Given a row vector of numbers, find the indices of the two nearest numbers. Examples: [index1 index2] = nearestNumbers([2 5 3...

10 years ago

Solved


Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

10 years ago

Solved


Which values occur exactly three times?
Return a list of all values (sorted smallest to largest) that appear exactly three times in the input vector x. So if x = [1 2...

10 years ago

Answered
How to construct this vector without loop?
vec = 3*(1:n); A = cell2mat(arrayfun(@(x) 1:x,vec,'UniformOutput',0)); or vec = 1:n; A = cell2mat(arrayfun(...

10 years ago | 0

Answered
Share variables among my different GUI's
This <http://www.mathworks.com/matlabcentral/answers/2002 link> may be of help.

10 years ago | 0

Answered
help with concatenation to open file
Try |doc function| for the new functions you find in the following code. This is one way to do what you want: a ...

10 years ago | 0

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Answered
How can I suppress or change the error message 'Undefined function or variable'
You can try this: number = ''; % str2double returns NaN if input is not a real or complex scalar value while isnan(...

10 years ago | 1

| accepted

Answered
convert a double array to something like logical
Hi Theodor, You can try a look-up table like this: lut = logical(diag(ones(1,7))); A = [1 5 7 4]'; S = lut(A(:...

10 years ago | 0

Answered
How to calculate a angle between two vectors in 3D
This code uses your angle calculation and shows for different reference points (3d). 2d is the same for your formula. % Or...

10 years ago | 2

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Answered
How to sort data once it is read into matlab
This should solve your problem. data = textscan(fid, '%s %s %s'); instead of data = textscan(fid, '%s %f %f');

10 years ago | 0

Solved


Target sorting
Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

10 years ago

Solved


Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

10 years ago

Solved


Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

10 years ago

Solved


Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

10 years ago

Answered
dB scale (log scale) of a polar plot graph
You can try this: <http://www.mathworks.com/matlabcentral/fileexchange/26476-a-basic-polar-plot-tool-in-db-linear-scale Polar P...

10 years ago | 0

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