If categories are not known..

[stalhaa]

@arpitjadiya @lkcbharath If categories are not known from dataset,then wat to do?? in case of lda

[arpitjadiya]

@stalhaa can you please elaborate a little?

[stalhaa]

@arpitjadiya i have a data which is unlabelled, then how can i calculate the accuracy and apply other evaluation metrics for an unlabelled data?

[arpitjadiya]

@stalhaa these performance metrics can be used for labelled data only,as you will need actual values(correct values) for your predicted variable.