P Control Chart ( wrong value plotted with Local Data Filter on when NG counts is zero)
Dear JMP communities, I am having a very strange problem when trying to use P Control Chart as illustrated below:On 02/24 02/25, 02/26; at Station 2, NG counts are Zero, but the P Chart gave a non-zero value; it turned out the local Data Filter didn't work in this case, it included the Station 1 NG counts. For example on 02/25, (13+0)/(258+13)=0.048.But when NG counts is not zero (02/27), the loc...