how to vertically cascade a string vector and a numerica matrix

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Tina Zhao 2016-3-23

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评论： Tina Zhao 2016-3-23

a={'time','channel1','channel2','channel3'}; b=[ 1 2 3 5; 4 2 6 7; 8 5 1 9; 3 2 4 6; 7 6 0 8]; how to vertically cascade the two, so the first row is a, and b has the same column number (4)?

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Answer 1

Steven Lord 2016-3-23

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Consider creating a table using the contents of the cell array as the variable names and the matrix as the data.

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Tina Zhao 2016-3-23

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I tried T=array2table(b,'VariableNames',a) and got the following time channel1 channel2 channel3 __ ______ ______ ______

     2           3           5       
     2           6           7       
     5           1           9       
     2           4           6       
     6           0           8

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Answer 2

Guillaume 2016-3-23

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编辑：Guillaume 2016-3-23

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If tables as per Steven Lord's suggestion don't work for you then:

c = [a; num2cell(b)]

I'd recommend going with a table though.

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Tina Zhao 2016-3-23

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c = [a; num2cell(b)]

c =

    'time'    'channel1'    'channel2'    'channel3'
    [   1]    [       2]    [       3]    [       5]
    [   4]    [       2]    [       6]    [       7]
    [   8]    [       5]    [       1]    [       9]
    [   3]    [       2]    [       4]    [       6]
    [   7]    [       6]    [       0]    [       8]