How to store a cell array as a table cell?

Hi all,

I have a structure with 5 fileds:

struct.field1 --> 1*8 cell

struct.field2 --> singe value (double)

struct.field3 --> 1*8 cell

struct.field4 --> 1*8 matrix (double)

struct.field5 --> 1*8 cell

and I also have a string let's call it RowName.

Now what I'm trying to do is to create a table with 6 variables and do a for loop which fills each row at each iteration. in each iteration, we need to do some calculations to get the struct and then assign its fileds to a row of the table. Here's how I did it:

T = table('Size',[0,6], 'VariableTypes',{'string','cell', 'double', 'cell', 'cell', 'cell'}, 'VariableNames',{'name','Var1', 'Var2', 'Var3', 'Var4', 'Var5'});
for i = 1:endLoop
    T(end+1,:) = {RowName, struct.field1,  struct.field2, struct.field3,  {struct.field4}, struct.field5};
end

this doesn't work so I wonder how I can do it.

Also one more question:

struct.field4 is originally a 1*8 vector (double). Can I store it as a vector not a cell in my table? cause the code above stores it as a cell.

Thank you.

[dpb]

"struct.field4 is originally a 1*8 vector (double). Can I store it as a vector not a cell in my table?"

No. A given row for in a table for a variable is only one storage location -- the scalar cell variable contaiming the vector is that one thing that can go there.

This doesn't appear to be a good fit for the table class...

Answer 1

[Eshan Patel]

Hey Azarang,

I understand that you would like to save the values from the struct into a table. Since the struct has 5 fields (+ "rowName"), I am assuming you would like to have 6 columns (variables), and 8 rows to represent the 8 values in your fields.

To achieve this, you can use the following snippet of code:

T = table('Size', [8, 6], 'VariableTypes', ["string", "double", "double", "double", "double", "string"], ...
    'VariableNames',{'name','Var1', 'Var2', 'Var3', 'Var4', 'Var5'});

for i = 1:8
    T(i, :) = {rowName{i}, struct.field1{i}, struct.field2, ...
               struct.field3{i}, struct.field4(i), struct.field5{i}};
end

assuming "rowName" is also a vector of strings.

To answer your second question - whether it would be possible to store "struct.field4" as a vector - no, it would not be possible to store your original vector field as a vector. However, you can obtain the vector back from the table using the following line of code:

a = [T{:, "Var4"}].';
% or
b = table2array(T(:, "Var4")).';