How to access/change a specific column in table in cell array using cellfun?

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Ahmad Gad
Ahmad Gad 2021-2-11
评论： Ahmad Gad 2021-2-14
Hello all.
I have a cell array A that is compsed of two tables T1, T2 with identical columns. I am struggling to find a proper method to make some changes to a specific column in these tables. I can do this using a loop, but I prefer to use cellfun to do my job for fewer coding lines. Please follow this example:
T1 = table([1;2;3],['a';'b';'c']);
T2 = table([4;5;6],['x';'y';'z']);
A = {T1,T2};
How can I access the data in column 1 of each table (Var1) to do some mathematical operation on it, like addition or subtraction. I need to know how to properly write this using cellfun. Any help will be appreciated.
Thanks in advance,
Ahmad Gad

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Walter Roberson
Walter Roberson 2021-2-11
cellfun(@(T) sum(T.var1), A)
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Walter Roberson
Walter Roberson 2021-2-14
cellfun(@(T) [table(T.Var1+1,'VariableNames','Var1'), T(:,2:end)], A, 'uniform', 0)
In the special case that the variable name really is Var1 you could abbreviate to
cellfun(@(T) [table(T.Var1+1), T(:,2:end)], A, 'uniform', 0)
as Var1 is the default variable name

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