[R] Dabbling with R5 setRefClass - Inheritance problems

[Johannes Graumann]

Ouch - and to think how much time I wasted on this ... Thanks!

Joh

Jose Iparraguirre wrote:

> Hi Johannes,
> 
> Just a typo.
> 
> You've written
> 
> ...
>  contains="rcfpdsuperclass")
> 
> When, in fact, you've defined the object rcfdpsuperclass
> 
> To highlight the mistake, I'll use capital letters: rcfPD... and rcfDP...
> 
> Regards,
> 
> José
> 
> 
> 
> José Iparraguirre
> Chief Economist
> Age UK
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> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
> On Behalf Of Johannes Graumann Sent: 08 November 2012 10:03
> To: r-help at stat.math.ethz.ch
> Subject: [R] Dabbling with R5 setRefClass - Inheritance problems
> 
> Hello,
> 
> I wrote a class like so:
> 
>> rcfdpsuperclass <- setRefClass(
>> Class="rcfdpsuperclass",
>>   fields = list(
>>    RcfpdVersion = "character"),
>>  methods = list(
>>    initialize = function(){
>>      'Populates fields with defaults and lock as appropriate'
>>      initFields(
>>        RcfpdVersion = as.character(packageVersion("RCFPD")))
>>      lockBinding(sym="RcfpdVersion",env=.self)
>>      }))
> 
> And a second one like this:
> 
>> sequencesuperclass <- setRefClass(
>>  Class="sequencesuperclass",
>>  fields = list(
>>    test="character"),
>>  contains="rcfpdsuperclass")
> 
> Executing the latter I get:
>> Error in getClass(what, where = where) :
>>  "rcfpdsuperclass" is not a defined class
> 
> Does someone have an idea what I am doing wrong?
> 
> Thank you for your consideration.
> 
> Sincerely, Joh
> 
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