Is there a way to create and preallocate for tables with a large number of variables (can all be of same type e.g. double) without having to specify each variable independently?

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Mark Bodner
Mark Bodner 2018-9-27
编辑： Matt J 2018-9-27
I want to create tables with a large number of variables (i.e. many columns of data all of type double) so using for example
sz =[1000,1000]; vartype = {'double','double',....,'double'}; T = table{'Size',sz,'VariableTypes',vartype};
is not reasonable. I assume there's an easier way to do this (i.e. without having to write 'double' thousands of times), but haven't been able to find it. Any suggestions would be appreciated.

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Matt J
Matt J 2018-9-27
编辑：Matt J 2018-9-27
sz =[1000,1000];
vartype = repmat({'double'},1,sz(2)) ;
T = table('Size',sz,'VariableTypes',vartype);

更多回答（1 个）

Matt J
Matt J 2018-9-27
编辑：Matt J 2018-9-27
Another way,
T=array2table(rand(sz));

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