Aggregation on Matlab Table

I have below table in matlab an i want to aggregate this table based on column name ,
name nums
'es' '1,2,3'
'mo' '4,3,1'
'al' '2,3,1'
'es' '40,2,8'
'es' '1,2,5'
'mo' '5,2,1'
'ta' '9,4,2'
'al' '2,6,1'
...
and this my desired output:
name nums
'es' '1,2,3,8,40,5'
'mo' '4,3,1,5,2'
'al' '2,3,1,6'
'ta' '9,4,2'
...
and this is my code,
n,m = size(T);
for i = 1:n
if ~ismember(name,mynewtab)
mynewtab.input(i).nums = mynewtab.input(i).nums + nums;
else
mynewtab.input(i).nums = mynewtab.input(i).nums + nums;
mynewtab.input(i).name = name;
end
end
but this code has some errors.

3 commentaires

madhan ravi
madhan ravi le 29 Oct 2018
by the how did you create a table with duplicate row name , curious..
Stephan
Stephan le 29 Oct 2018
I think this are not row names, but entries in the column named 'name'.
esmaeil zahedi
esmaeil zahedi le 29 Oct 2018
Read from xlsx file

Connectez-vous pour commenter.

Réponses (1)

Peter Perkins
Peter Perkins le 31 Oct 2018

0 votes

I doubt that what you showed is actually what you want.
I imagine what you want is a table (the datatype) with a categorical variable Name, and a cell variable Nums, each cell of which contains a numeric vector of different lengths. From there; it's a one-liner: call varfun with @(x) unique([x{:}],'stable') as the function.
If Nums in your table is a cell array containing numeric row vectors, that function will receive a smaller cell array, all the cells corresponding to, say, ES, concatenate all the contained row vectors, and return just the unique numbers.

Catégories

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by