[R] [pROC] roc.test returns "NA" p-value...

[O]

Dear Uwe:

Many thanks for your prompt feedback.  You were right about the data. 

I don't understand why but one map wasn't perfect (i.e., it didn't include
count information for each value).
If this happens the map seems alright using GIS programs because you can
still produce pretty maps based on it.
However, when I looked into the table, which is associated with the map
layer, it was all null for some reason.
So, I processed the map again and the bootstrap of pROC worked just fine.  

I really appreciate your help!

with thanks,
OK

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