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General shape of the confusion matrix.
| Diabetes | No Diabetes | |
|---|---|---|
| Predicted diabetes | a | b |
| Predicted no diabetes | c | d |
| a + c | b + d |
“a” represents the true predicted patients with diabetes, “b” represents the false predicted people with diabetes, “c” represents the false predicted people with no diabetes, and “d” represents the true predicted people with no diabetes. “a + c” represents the total number of people with diabetes, while “b+d” represents the total number of people with no diabetes.
