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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: isopam
> ### Title: Isopam (Clustering)
> ### Aliases: isopam plot.isopam identify.isopam summary.isopam isopamp
> ### Keywords: cluster
> 
> ### ** Examples
> 
>      ## load data to the current environment
>      data(andechs)
> 
>      ## call isopam with the standard options
>      ip<-isopam(andechs)
Error in .make_numeric_version(x, strict, .standard_regexps()$valid_numeric_version) : 
  invalid non-character version specification 'x' (type: double)
Calls: isopam ... as.numeric_version -> numeric_version -> .make_numeric_version
Execution halted
Running examples in ‘isopam-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: isopam
> ### Title: Isopam (Clustering)
> ### Aliases: isopam plot.isopam identify.isopam summary.isopam isopamp
> ### Keywords: cluster
> 
> ### ** Examples
> 
>      ## load data to the current environment
>      data(andechs)
> 
>      ## call isopam with the standard options
>      ip<-isopam(andechs)
Error in .make_numeric_version(x, strict, .standard_regexps()$valid_numeric_version) : 
  invalid non-character version specification 'x' (type: double)
Calls: isopam ... as.numeric_version -> numeric_version -> .make_numeric_version
Execution halted