Write error statements

[buabaj]

Is your feature request related to a problem? Please describe. there's the need to write error statments to prompt users of the types of errors they encounter and suggest what to do

[Silas-Asamoah]

Could you list the possible errors?

[buabaj]

1. error to be raised if data encoding doesn't work
2. training error in KNN classifier
3. out-of-sample error (generalization error) in svm will add to these if i remeber or think of possible errors

[Silas-Asamoah]

Sure thing

[buabaj]

yeah