How to solve this error (Error using pnn (line7) 'model' parameter must be a string )

I have training and testing dataset,I want to classify them by using PNN classifier

 load training1.dat
load testing1.dat
training = training1;
testing = testing1;
P = testing(:,[1,2,3,4,5,6,7,8]); 
P=P';
Y = sim(training,P);
y = vec2ind(Y);

[madhan ravi]

Upload .dat file

[Bajdar Nour]

Dear @madhan ravi, I cant uploaded them as .dat (File format is unsupported).I uploaded them as a .mat files