[R] how to transform string to "Camel Case"?

[Rainer M. Krug]

Liviu Andronic <landronimirc at gmail.com> writes:

> On Mon, Apr 15, 2013 at 9:25 AM, Henrik Bengtsson <hb at biostat.ucsf.edu> wrote:
>> See for instance capitalize() in the R.utils package.
>>
> Unfortunately this also fails when NA values are present:
>  z <- c("R project", "hello world", "something Else", NA)
>> R.utils::capitalize(z)
> [1] "R project"      "Hello world"    "Something Else" "NANA"
>
> Any pointers how to work around that? Thanks,

would 

 R.utils::capitalize(z[is.character(z)])

work in your case?

Rainer


> Liviu
>
>
>> Henrik
>>
>> On Apr 14, 2013 11:51 PM, "Liviu Andronic" <landronimirc at gmail.com> wrote:
>>>
>>> Dear all,
>>> Given the following vector:
>>> > (z <- c('R project', 'hello world', 'something Else'))
>>> [1] "R project"      "hello world"    "something Else"
>>>
>>> I know how to obtain all capitals or all lower case letters:
>>> > tolower(z)
>>> [1] "r project"      "hello world"    "something else"
>>> > toupper(z)
>>> [1] "R PROJECT"      "HELLO WORLD"    "SOMETHING ELSE"
>>>
>>> I saw the tocamel() function in 'rapport', but it doesn't do what I
>>> want to achieve as it actually proceeds to camelCase/CamelCase the
>>> strings:
>>> > tocamel(z)
>>> [1] "RProject"      "helloWorld"    "somethingElse"
>>>
>>>
>>> But how should I proceed to obtain Camel Case? Here's what I'd like to
>>> get:
>>> c('R Project', 'Hello World', 'Something Else')
>>>
>>>
>>> Regards,
>>> Liviu
>>>
>>>
>>> --
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>>>
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-- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
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