Dear Sir,
Please check documents in the following two links. They contain information and examples about the data interaction between DIAdem and Matlab. I hope this information is useful.
http://digital.ni.com/public.nsf/websearch/1706BA4C65A8533686256C630062DD03?OpenDocument
http://digital.ni.com/public.nsf/websearch/7DF72D3233E241CC86256C690036503D?OpenDocument
Best regards,
Diego Reyes
Applications Engineer
National Instruments