Join two tables with different sizes

Question

0 个投票

Hello,

I am trying to join two tables with different sizes

 A = 50000 x 12 
 B = 9 x 3

Both matrices have a variable name 'UnqID'

Basically, I am trying to add information from table B column 2 and 3, following the same UnqID, in table A.

This is just an example of what I need to do, as the real tables have a larger size (different size)

I am following the examples at

https://www.mathworks.com/help/matlab/ref/table.join.html

and

https://www.mathworks.com/help/matlab/ref/outerjoin.html

...however, I am getting this error...

 Error using tabular/outerjoin (line 141)
 Left and right key variables 'UnqID' and 'UnqID' do not have the same number of columns.

In mathwork examples, the tables can have different size, so not sure what is happening.

Any suggestions? Thanks!

4 个评论
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Robert 2018-6-2

Walter, for some reason I don't see where to accept your answer on this page...

Walter Roberson 2018-6-2

I had only entered it as a Comment; I've made it an Answer now.

Answer 1

Walter Roberson 2018-6-2

1 个投票

The error message suggests that size(A.UnqID,2) is not the same as size(B.unqID,2)