MATLAB: How to organize a table using a specified cell array

Question

https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-table.html

In the example found in this documentation, how would I index the data by Gender? Such as if I wanted a new table selecting only rows with {'Male' } or {'Female'}?

I am wondering if it is different than:

rows = (T.Smoker==true & T.Age<40);

T(rows,:)

as it is a cell. Thank you.

Answer 1

One approach is to use the findgroups function:

load patients
T = table(Age,Gender,Height,Weight,Smoker,...
    'RowNames',LastName);
[Grp,ID] = findgroups(T.Gender);
Males = T(Grp==2,:); 

The ‘ID’ variable indicates that these are sorted lexiically, so 1=Female, and 2=Male.