[R] Cannot get "==" operator to return TRUE

[Duncan Murdoch]

On 12-02-03 11:10 AM, G See wrote:
> Sorry, I meant
> Do you know of a way to print a string such that I can see whether it
> contains a *space* or a no-break space?

Use tools::showNonASCII(x).  On Petr's example, it gives

1: n/a<c2><a0>

Duncan Murdoch

>
>
> On Fri, Feb 3, 2012 at 10:10 AM, G See<gsee000 at gmail.com>  wrote:
>> Petr,
>>
>> Thank you!  That is great.
>>
>> Do you know of a way to print a string such that I can see whether it
>> contains a string or a no-break space?
>>
>> Thanks,
>> Garrett
>>
>> On Fri, Feb 3, 2012 at 10:01 AM, Petr Savicky<savicky at cs.cas.cz>  wrote:
>>> On Fri, Feb 03, 2012 at 09:25:10AM -0600, G See wrote:
>>>> I have a data.frame named "df". The dput of df is at the bottom of this e-mail.
>>>> What I'd like to do is replace the "n/a " values with NA.  On Mac OSX, it works
>>>> to do this:
>>>> df[df == "n/a"]<- NA
>>>>
>>>> However, it does not work on Ubuntu.  See below.
>>>>
>>>> Thanks in advance,
>>>> Garrett
>>>>
>>>>> x<- df[27, 4] # complete data.frame dput is below
>>>>> dput(x)
>>>> "n/a "
>>>
>>> Hi.
>>>
>>> This string contains a no-break space, not a space.
>>>
>>>   "n/a " == "n/a\uA0"
>>>
>>>   [1] TRUE
>>>
>>>   "n/a\uA0"
>>>
>>>   [1] "n/a "
>>>
>>> Hope this helps.
>>>
>>> Petr Savicky.
>>>
>>> ______________________________________________
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>>> https://stat.ethz.ch/mailman/listinfo/r-help
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>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.