MATLAB: Gather many tables in one table

datatables

How can I gather data in different tables in one table.

Best Answer

That depends on whether you’re concatenating columns or adding rows.

Concatenating columns is just like regular matrix column concatenation:

Tnew = [Told Tadd];

where ‘Told’ is your original table, and ‘Tadd’ is the table you want to concatenate to it.

Adding rows is described in Add and Delete Table Rows.

Related Solutions

MATLAB: Joining 2 tables to make 1 table

You can unite them as if they were matrixes:

complete_table = [table1 ; table2]; % This should work to join the columns of both tables

MATLAB: Existing table, populate a column with string (receiving errors)

You are close, but you are trying to assign a character vector to a double variable (NaN = not a number). You can see that if you run the command summary(mytable).

You also do not need to put the text into a cell if you use the string data type.

See if you can get this code to work for your needs.

myArray = nan(5,2)
mytable = array2table(myArray);
mytable.Properties.VariableNames = {'colA', 'colB'};
mytable2 = convertvars(mytable,"colB",'string');
mytable2.colA(:) = 459;
mytable2.colB(:) = "words"

You say you have a lot of data. If the variables already exist, you could do something like this:

colA = nan(5,1);
colB = strings(5,1);
mytable = table(colA,colB);
mytable.colA(:) = 459; % just a random number, proof-of-concept that it works
mytable.colB(:) = "words" % this throws errors

Best Answer

Related Solutions

MATLAB: Joining 2 tables to make 1 table

MATLAB: Existing table, populate a column with string (receiving errors)

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