Invalid matrix while using str2num on large data sets

When using str2num on a matrix of size 1000x70 my code works. This means I must procees many...many data files. I used the UNIX CAT fuction to create one large data file from many small data files. Now when I use the str2num on the large matrix of size 10000x700 it returns an empty matirx. If I process each file independently the code works. How can I get around this str2num problem?

Answer 1

[Walter Roberson]

R2008b, Linux-64, it worked for me on a considerably larger matrix.

Which release are you using, which OS, and 32 or 64 bit?

My first thought would be that you are running out of memory.

Answer 2

[Jan]

str2num uses eval to convert the string. It is not a good idea to use this for the conversion. I suggest to use fscanf instead.