fitlda using matrix data

I would like to know how to use fitlda. According to matlab's homepage, first of all, they analyzed sentence. In this time, I've already had matrix data. Example matrix data is below.

x y z ・・・

A 1 0 3

B 5 1 0

C 2 0 2

・

・

・

I woukd like to use fitlda using above matrix data.

Answer 1

[Misa Taguchi]

Is the matrix you already have the bag-of-words format? If so, this example would help.

[TS]

Thank you for the valuable information.