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szjs/公式.txt
2025-03-10 23:51:01 +08:00

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根据你提供的公式和参数,我们可以逐步计算预测概率
P
P。
公式为:
P
=
exp
(
5.908
+
0.008
×
IGF-1
+
2.146
×
LH
+
0.286
×
子宫厚度
)
1
+
exp
(
5.908
+
0.008
×
IGF-1
+
2.146
×
LH
+
0.286
×
子宫厚度
)
P=
1+exp(5.908+0.008×IGF-1+2.146×LH+0.286×子宫厚度)
exp(5.908+0.008×IGF-1+2.146×LH+0.286×子宫厚度)
代入给定的参数:
IGF-1 = 334 ng/ml
LH = 0.6 mIU/ml
子宫厚度 = 11 mm
首先计算指数部分:
5.908
+
0.008
×
334
+
2.146
×
0.6
+
0.286
×
11
5.908+0.008×334+2.146×0.6+0.286×11
逐步计算:
0.008
×
334
=
2.672
0.008×334=2.672
2.146
×
0.6
=
1.2876
2.146×0.6=1.2876
0.286
×
11
=
3.146
0.286×11=3.146
将这些值相加:
5.908
+
2.672
+
1.2876
+
3.146
=
1.1976
5.908+2.672+1.2876+3.146=1.1976
接下来计算指数函数:
exp
(
1.1976
)
3.312
exp(1.1976)≈3.312
然后计算概率
P
P
P
=
3.312
1
+
3.312
=
3.312
4.312
0.767
P=
1+3.312
3.312
=
4.312
3.312
≈0.767
因此,预测概率
P
P 为 0.767,与你的结果一致。
根据上面公司,请重新给几组测试数据
以下是几组测试数据,你可以根据提供的公式计算预测概率
P
P
测试数据 1
IGF-1: 250 ng/ml
LH: 0.8 mIU/ml
子宫厚度: 10 mm
测试数据 2
IGF-1: 400 ng/ml
LH: 1.2 mIU/ml
子宫厚度: 12 mm
测试数据 3
IGF-1: 300 ng/ml
LH: 0.5 mIU/ml
子宫厚度: 9 mm
测试数据 4
IGF-1: 350 ng/ml
LH: 1.0 mIU/ml
子宫厚度: 11 mm
测试数据 5
IGF-1: 280 ng/ml
LH: 0.7 mIU/ml
子宫厚度: 8 mm
计算示例(以测试数据 1 为例)
公式:
P
=
exp
(
5.908
+
0.008
×
IGF-1
+
2.146
×
LH
+
0.286
×
子宫厚度
)
1
+
exp
(
5.908
+
0.008
×
IGF-1
+
2.146
×
LH
+
0.286
×
子宫厚度
)
P=
1+exp(5.908+0.008×IGF-1+2.146×LH+0.286×子宫厚度)
exp(5.908+0.008×IGF-1+2.146×LH+0.286×子宫厚度)
代入测试数据 1
5.908
+
0.008
×
250
+
2.146
×
0.8
+
0.286
×
10
5.908+0.008×250+2.146×0.8+0.286×10
=
5.908
+
2.0
+
1.7168
+
2.86
=5.908+2.0+1.7168+2.86
=
0.6688
=0.6688
计算指数函数:
exp
(
0.6688
)
1.952
exp(0.6688)≈1.952
计算概率
P
P
P
=
1.952
1
+
1.952
=
1.952
2.952
0.661
P=
1+1.952
1.952
=
2.952
1.952
≈0.661
因此,测试数据 1 的预测概率
P
P 约为 0.661。
你可以用同样的方法计算其他测试数据的
P
P 值。如果需要进一步帮助,请告诉我!