dear professor:
I am a doctor of urinary,and I am developing a nomogram of bladder tumor.Now I
have a problem about this.
I have got the result like this through analysing the dataset "exp11.sav"
through multinominal logistic regression by SPSS 17.0.(the Sig. is high,that is
good ,it is just aexperimental data )
Parameter Estimates
Ya
B
Std. Error
Wald
df
Sig.
Exp(B)
95% Confidence Interval for Exp(B)
Lower Bound
Upper Bound
1
Intercept
-1.338
.595
5.059
1
.024
T.Grade
.559
.319
3.076
1
.079
1.749
.936
3.265
Sex
.920
.553
2.766
1
.096
2.511
.849
7.428
Smoking
-.896
.474
3.580
1
.058
.408
.161
1.033
a. The reference category is: 0.
And after that,I want to develop the nomogram through R-Project.
And
I load the package "rms"
> T.Grade<-factor(0:3,labels=c("G0", "G1", "G2","G3"))
> Sex<-factor(0:1,labels=c("F","M"))
> Smoking<-factor(0:1,labels=c("No","yes"))
> L<-0.559T.Grade-0.896Smoking+0.92Sex-1.338 # error (错误:
> 不适用于非函数;error:it is not fit the non-function)
The R-project index that the last program error.
can you tell me where is the mistake.and how to get the correct equation .
thank you for you help!
And I an sorry about my poor english!
truly yours
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