MATLAB: How to specify size of row and column vector

columnsrowsize;vectors

    *If we have a row vector A
    and a column vector B
    How do we specify the size for both vectors ?*

Best Answer

sizeofvector = input('What size vector do you want? Enter the size in brackets, e.g. [100 1]\n');
 %%%user enters [1 1000]
 x = 10+10*rand(sizeofvector(1),sizeofvector(2));

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MATLAB: This is a homework question I have been stuck on.

Hint: see this snippet

% Ask user for two floating point numbers.
defaultValue = {'45.67', '78.91'};
titleBar = 'Enter a value';
userPrompt = {'Enter floating point number 1 : ', 'Enter floating point number 2: '};
caUserInput = inputdlg(userPrompt, titleBar, 1, defaultValue);
if isempty(caUserInput),return,end; % Bail out if they clicked Cancel.
% Convert to floating point from string.
usersValue1 = str2double(caUserInput{1})
usersValue2 = str2double(caUserInput{2})
% Check for a valid number.
if isnan(usersValue1)
    % They didn't enter a number.  
    % They clicked Cancel, or entered a character, symbols, or something else not allowed.
  % Convert the default from a string and stick that into usersValue1.
    usersValue1 = str2double(defaultValue{1});
    message = sprintf('I said it had to be a number.\nI will use %.2f and continue.', usersValue1);
    uiwait(warndlg(message));
end
% Do the same for usersValue2

You can also input a string that way, so the user can enter in a bunch of numbers, then use sscanf() or textscan() to parse it into a vector of doubles. Good luck.

MATLAB: There is a mismatch in nrPRBS and the custom made pseudo-random sequence generator function

Hi Ashish,

The mismatch you observed between the outputs of nrPRBS and the custom written code is due to the comparison of variables having different vector dimensions while calculating M. The generated sequence 'myseq' is a row vector (1 x 100), whereas the output of nrPRBS function 'seq5g' is a column vector (100 x 1). Once the calculation is performed with the same dimensions, the outputs match.

In the testing code, If this line of code M = sum(double(myseq == seq5g)); is modified with sum(double(myseq == seq5g'));. The outputs match. It is similar to what is performed for variable commseq in your testing code.

Hope this helps.

Regards,

Sriram

Best Answer

Related Solutions

MATLAB: This is a homework question I have been stuck on.

MATLAB: There is a mismatch in nrPRBS and the custom made pseudo-random sequence generator function

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