Supervised Classification (Random Forest, Maximum Likelyhood, KNN

I am doing supervised classification and faced a problems with classifier evaluation.
When I put less number of training points its gives a complete evaluation report but whenever I increase number of training samples it doesn’t give me complete report.
Two reports with 500 Samples and 5000 sample for maximum likelihood is attached for reference
Same is the issue with RF and KNN. Previously It was working well…
newClassifier500TrainingSample.txt (2.6 KB)
newClassifier5000TrainingSample.txt (567 Bytes)

could it be that your training areas are smaller than the sample size?

Dear ABraun
I am still stuck in that supervised classification issue using different algorithms (RF, Maximum Likelyhood, KNN)
I have 25000 points for each sample class and these points are well distributed over the image.
When ever I increase number of training samples from 500 the classifier does not work properly

what does this mean? Can you please specify?

Thanks for reply,
I am using Random Forest, Maximum Likelohood and KNN. Trianing samples are vector points of two class each with 25000 points. I also ten (10) feature classes which are also included during classification.
Commonly it gives a classification report which do have Accuracy, Precision, RMSE etc. But sometime I do not get the complete report mostly when I increase number of samples from 500.
Last day I processed it with some new data and it works now and may be it will trouble again then I will refer the error to you.
At the moment my issue is resolved.
Thanks