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How to eliminate the rows of data ?

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Andre
Andre el 12 de Ag. de 2014
Cerrada: MATLAB Answer Bot el 20 de Ag. de 2021
I have a large data-set.The data in cell. A sample of this data-set is as follows:
I want to eliminate the number of rows of data that is less than 3 lines in a set (shown in red box). Can I have a simple code to do this?
  1 comentario
Christopher Berry
Christopher Berry el 12 de Ag. de 2014
Editada: Christopher Berry el 14 de Ag. de 2014
How is your data stored? double? cell? table? What size is it?
chances are, all you need to do is
rows = [1 4 10];
data(rows,:) = [];
This will remove rows 1 4 and 10 from a 2D matrix of doubles

Respuestas (2)

Joakim Magnusson
Joakim Magnusson el 12 de Ag. de 2014
Is your data i a matrix? I'm not sure what you want to remove, but for example if you want to remove the first 5 rows, i think you could do like this:
yourMatrix(1:5, :) = [];
But i guess you want to recognize some kind of pattern and remove the rows with the specific pattern?

Ben11
Ben11 el 12 de Ag. de 2014
If your data is stored in a cell array you could use the following:
% Identify the rows (I) in which there are empty elements
[I,J] = ind2sub(size(YourArray),find(cellfun(@(x) isempty(x),YourArray)))
% Find the unique entries
RowsToDelete = unique(I)
% Delete them
YourArray(RowsToDelete,:) = [];

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