Looping the data along with deliminaters (please find the code below)

Question

Rakesh Yadav Kodari 2019-2-19

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https://ww2.mathworks.cn/matlabcentral/answers/445785-looping-the-data-along-with-deliminaters-please-find-the-code-below

评论： Stephen23 2019-2-20

I have to read data from the serial port multiple times like

A = fscanf(t)

B = fscanf(t)

C = fscanf(t)

D = fscanf(t)

E = fscanf(t) and so on i had to do it manually. so i tried the code below for making it simple, and also i have deliminaters for example M and L

n = 10000;

% while loop execution

while( n < 10000 )

A= fscanf(t);

end

but it is not working could any one please help me with the same

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Bob Thompson 2019-2-19

Do you know how many sets of data you're going to get? If so, yes it is possible to use a for loop. If not, a while loop is likely a better option.

Rakesh Yadav Kodari 2019-2-19

I dont know how many sets of data I am going to get, but i know where the data starts and ends. how can i use a while loop?

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Answer 1

Bob Thompson 2019-2-19

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https://ww2.mathworks.cn/matlabcentral/answers/445785-looping-the-data-along-with-deliminaters-please-find-the-code-below#answer_361764

编辑：Bob Thompson 2019-2-19

You were on the right track with your loop that you had already, the biggest thing would be to add an index.

i = 0;                  % Initalize your index
while n < 10000;        % Loop break condition
    i = i+1;            % Change index to next value
    A(i) = fscanf(t);   % Record data to index
    n = ...             % You need to define n. How will you break your loop? Check for end of data set maybe?
end

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Rakesh Yadav Kodari 2019-2-20

Is there any possible way that i can change the vector itself like A,B,C,D....to save the ans?

Stephen23 2019-2-20

@Rakesh Yadav Kodari: the default format for fscanf for serial objects is '%c'. As far as I can tell, this means that you could easily have multiple characters. Multiple characters cannot be allocated to one element of a char/numeric array. You could easily use a cell array, or check the size of the output before allocating to the array, or perhaps you just need to specify the format string to convert the data to numeric: which of these you need depends on your data and your algorithm, which you have not told us about.

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