Question:
When the array has few elements the dlmread command works but in the case of a high order array it doesn't. I would like to have access to the columns of the matrix.
Answer:
Try using tblread instead of dlmread !
You will be able to read files with this structure:
Latitude » Longitude » City
42.3584 » -71.0598 » Boston
40.4167 » -3.7003 » Madrid
41.8955 » 12.4823 » Rome
And you can even use delimiters to find the correct positions!
Source for research and understanding of the mentioned command!