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Confusing questions on cells

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RuiQi
RuiQi 2016-12-5
编辑： per isakson 2016-12-5
I am studying cells in matlab and I have some questions that I find very confusing.
Question 1
temperature(1,:) = {'01-Jan-2010', [45, 49, 0]};
stuff = temperature(1,1) % stuff = cell
stuff = temperature{1,1} % stuff = content of cell {1,1} which is 01-Jan-2010
Therefore curved brackets pass me the cell and curly brackets pass me the contents of that cell. Why does
stuff = temperature(1,1:end) % stuff = temperature which is a cell
stuff = temperature{1,1:end} % why does it not give me the contents of both into stuff ? I only get stuff = 01-Jan-2010 why the array gone ?
Question 2
I have a 1 x 7 cell where each cell is a 10000 x 1 int. I can use cell2mat to get data
box = cell2mat(cell([1 3:7])); box is now a 10000 x 6 array
But why cant I
box = cell{[1 3:7]} % Box equals to the extracted stuffs (curly brackets) of column 1 and 3 to 7
Question 3
I have a cell of 1 x 7 where each cell contains 10000 elements. How do I convert it a cell of 10000 x 7 ?

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回答（1 个）

per isakson
per isakson 2016-12-5
编辑：per isakson 2016-12-5
  1. cell{[1 3:7]} creates a Comma-Separated Lists, which cannot be assigned to a variable.
  2. temperature{1,1:end} - same story

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