TABLE OF 2 ROWS AND 12 COLUMNS

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F.O 2017-10-10

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评论： Walter Roberson 2017-10-11

Hi,I want to make a TABLE OF 2 ROWS AND 12 COLUMNS WITH YEAR IN THE FIRST ROW AND NUMBER OF EARTHQUAKES IN THE SECOND ROW.

year=[2005 2006 2007 2008 2009 2010 2011 2012  2013 2014 2015 2016 ];
n_of_earthquakes=[1 2 4 0 1 1 1 2 2 1 1 0]

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Image Analyst 2017-10-11

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You can't have a table like that. You can however have them in columns:

year=[2005 2006 2007 2008 2009 2010 2011 2012  2013 2014 2015 2016 ];
n_of_earthquakes=[1 2 4 0 1 1 1 2 2 1 1 0]
t = table(year', n_of_earthquakes', 'VariableNames', {'year', 'n_of_earthquakes'})

If you want a matrix (a regular double numerical array) rather than a "table" variable, you can just use seimcolon:

m = [year; n_of_earthquakes]

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F.O 2017-10-11

Thanks ,this looks good.

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Walter Roberson 2017-10-10

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year = 1973 : 1984;
earthquakes = randi(10000, 1, 12);
YourTable = array2table([year; earthquakes], 'RowNames', {'year', '# earthquakes'})

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F.O 2017-10-11

编辑：Walter Roberson 2017-10-11

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Thanks a lot and this was what i wanted eventhough I didn't know what is this command

ylab = arrayfun( @(Y) sprintf('yr%d', Y), year, 'uniform', 0);

Walter Roberson 2017-10-11

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That command take the vector year, and for each element of it, applies the function @(Y) sprintf('yr%d', Y) . That function converts the numeric element to a string and puts the characters 'yr' in front of that, giving a character vector as a result for each numeric element. The 'uniform', 0 option tells MATLAB to put the results into a cell array, so the end result stored in ylab is a cell array, each element of which is a character vector that starts with 'yr' and then followed by the year.

Starting in R2017a, the entire line can be replaced with

ylab = "yr" + year;

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