Load existing Model in Weka Knowledge Flow -

Load existing Model in Weka Knowledge Flow -

i trying plot multiple roc curves in same diagram in weka. have learnt can in weka knowledge flow using "model performance chart". however, can't figure out how existing models.

i have tried using arffloader , testsetmaker generate testing data, , connected suitable classifier icon (eg adaboostm1 when kind of model trying load). in configurations of classifier icon take "load model" , in status bar says "loaded model.". however, when run says "error: no trained/loaded classifier utilize prediction".

can tell me doing wrong here? in advance!

there post published here indicates ambiguity in meaning of error. continues state order of attributes , number , order of values rather important.

it states 'for performance results computed, knowledge flow process need "classifierperformanceevaluator" component after classifier , before textviewer component.'

if new knowledgeflow environment, there great tutorial here rushdi shams details general process.

below sample workflow has generated desirable results using adaboost (preloaded model):

hope helps!

weka