[Rd] Feature request: compareVersion

[Duncan Murdoch]

On 21/12/2021 9:41 a.m., Sigbert Klinke wrote:
> Hi,
> 
> compareVersion returns -1, 0, or 1 rather than TRUE or FALSE which could
> be used in computing.
> 

I'm not sure where you would need the 3 level value, but this would give 
it to you:

(packageVersion("shiny") > "0.11") - (pacageVersion("shiny") < "0.11")

Duncan Murdoch

> Sigbert
> 
> Am 21.12.21 um 15:19 schrieb Martin Maechler:
>>
>>> Hi,
>>> currently I have to use
>>
>>> compareVersion(as.character(packageVersion("shiny")), "0.11")
>>
>>> It would be nice if compareVersion would make the as.character
>>> internally, rather then force the user to do it.
>>
>>> Thanks
>>> Sigbert
>>
>> Well, if you follow the help page examples of packageVersion()
>> you would use
>>
>>> packageVersion("Matrix") >= "1.4.0"
>> [1] TRUE
>>> packageVersion("shiny") >= "0.11"
>> [1] TRUE
>>>
> 
>