二分类logisit中的预测效果，为什么图中的数字是0，我看其他模型都是有数字的，想了解下原因
| Classification Tablea |
| Observed | Predicted |
Y | Percentage Correct |
0 | 1 |
Step 1 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 2 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 3 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 4 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 5 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 6 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 7 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 8 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
| Overall Percentage | | | 95.3 |
Step 9 | Y | 0 | 19859 | 0 | 100.0 |
1 | 990 | 0 | .0 |
Overall Percentage | | | 95.3 |
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