R Under development (unstable) (2024-03-08 r86070 ucrt) -- "Unsuffered Consequences"
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> 
> ## regression test for testing regression
> 
> library(survey)
Loading required package: grid
Loading required package: Matrix
Loading required package: survival

Attaching package: 'survey'

The following object is masked from 'package:graphics':

    dotchart

> data(api)
> 
> dstrat<-svydesign(id=~1,strata=~stype, weights=~pw, data=apistrat, fpc=~fpc)
> 
> 
> f<-function(){
+   form<-acs.46~stype
+   svyglm(formula=form, design = dstrat)  
+ }
> 
> g<-function(form){
+   svyglm(formula=form, design = dstrat)  
+ }
> f()
Stratified Independent Sampling design
svydesign(id = ~1, strata = ~stype, weights = ~pw, data = apistrat, 
    fpc = ~fpc)

Call:  svyglm(formula = form, design = dstrat)

Coefficients:
(Intercept)       stypeH       stypeM  
    28.7449       0.7551       0.4022  

Degrees of Freedom: 133 Total (i.e. Null);  129 Residual
  (66 observations deleted due to missingness)
Null Deviance:	    1838 
Residual Deviance: 1835 	AIC: 719.8
> g(acs.46~stype)
Stratified Independent Sampling design
svydesign(id = ~1, strata = ~stype, weights = ~pw, data = apistrat, 
    fpc = ~fpc)

Call:  svyglm(formula = form, design = dstrat)

Coefficients:
(Intercept)       stypeH       stypeM  
    28.7449       0.7551       0.4022  

Degrees of Freedom: 133 Total (i.e. Null);  129 Residual
  (66 observations deleted due to missingness)
Null Deviance:	    1838 
Residual Deviance: 1835 	AIC: 719.8
> 
> f<-function(){
+   form<-Surv(acs.46)~stype
+   svycoxph(formula=form, design = dstrat)  
+ }
> 
> g<-function(form){
+   svycoxph(formula=form, design = dstrat)  
+ }
> 
> f()
Call:
svycoxph(formula = form, design = dstrat)

          coef exp(coef) se(coef) robust se      z     p
stypeH -0.6766    0.5083   1.0208    0.6652 -1.017 0.309
stypeM -0.2509    0.7781   0.2308    0.2089 -1.201 0.230

Likelihood ratio test=  on 2 df, p=
n= 134, number of events= 134 
   (66 observations deleted due to missingness)
> g(Surv(acs.46)~stype)
Call:
svycoxph(formula = form, design = dstrat)

          coef exp(coef) se(coef) robust se      z     p
stypeH -0.6766    0.5083   1.0208    0.6652 -1.017 0.309
stypeM -0.2509    0.7781   0.2308    0.2089 -1.201 0.230

Likelihood ratio test=  on 2 df, p=
n= 134, number of events= 134 
   (66 observations deleted due to missingness)
> 
> ## check coxph for a single predictor
> svycoxph(Surv(acs.46)~api00,design=dstrat)
Call:
svycoxph(formula = Surv(acs.46) ~ api00, design = dstrat)

           coef exp(coef)  se(coef) robust se     z     p
api00 6.060e-06 1.000e+00 6.244e-04 7.492e-04 0.008 0.994

Likelihood ratio test=  on 1 df, p=
n= 134, number of events= 134 
   (66 observations deleted due to missingness)
> 
> proc.time()
   user  system elapsed 
   1.15    0.10    1.26