Running examples in ‘wnominate-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: generateTestData
> ### Title: Test Data Generator for W-NOMINATE
> ### Aliases: generateTestData
> ### Keywords: multivariate
> 
> ### ** Examples
> 
>     dat<-generateTestData()
>     result<-wnominate(dat,polarity=c(1,2))

Preparing to run W-NOMINATE...

	Checking data...

		All members meet minimum vote requirements.

		All votes meet minimum lopsidedness requirement.

	Running W-NOMINATE...

		Getting bill parameters...
		Getting legislator coordinates...
		Starting estimation of Beta...
		Getting bill parameters...
		Getting legislator coordinates...
		Starting estimation of Beta...
		Getting bill parameters...
		Getting legislator coordinates...
		Getting bill parameters...
		Getting legislator coordinates...
		Estimating weights...
		Getting bill parameters...
		Getting legislator coordinates...
		Estimating weights...
		Getting bill parameters...
		Getting legislator coordinates...


W-NOMINATE estimation completed successfully.
W-NOMINATE took 0.888 seconds to execute.

>     summary(result)


SUMMARY OF W-NOMINATE OBJECT
----------------------------

Number of Legislators:	  20 (0 legislators deleted)
Number of Votes:	  100 (0 votes deleted)
Number of Dimensions:	  2
Predicted Yeas:		  834 of 912 (91.4%) predictions correct
Predicted Nays:		  1024 of 1088 (94.1%) predictions correct
Correct Classifiction:	  90.3% 92.9%
APRE:			  0.766 0.829
GMP:			  0.822 0.857 


The first 10 legislator estimates are:
             coord1D coord2D
Legislator1    0.948   0.152
Legislator2    0.060   0.998
Legislator3    1.000  -0.014
Legislator4   -0.197  -0.118
Legislator5    0.970   0.059
Legislator6   -0.956   0.223
Legislator7   -0.955  -0.276
Legislator8   -0.989  -0.099
Legislator9   -0.522  -0.465
Legislator10  -0.877  -0.394
>     plot(result)
Error in axis(2, at = yt, ...) : 
  formal argument "at" matched by multiple actual arguments
Calls: plot -> plot.nomObject
Execution halted