[R] About concatenating strings

[Jim Lemon]

Hi lily,
maybe this is what you want:

strings1<-c(1.2,1.31,1.4,1.51)
strings2<-c(2.1,2.22,2.3,2.44)
paste(formatC(strings1,digits=2,format="f"),
 formatC(strings2,digits=2,format="f"),sep="-")

Jim


On Fri, Jan 6, 2017 at 4:56 PM, lily li <chocold12 at gmail.com> wrote:
> Sorry for the emails. I just checked and the problem is still there. Is
> there a proper way to reformat the decimal places, such as three or four
> decimal places? Thanks.
>
> If maintain four decimal places, the numbers are: 1.2000, 1.3100, 1.4000,
> etc.
>
> On Thu, Jan 5, 2017 at 10:46 PM, lily li <chocold12 at gmail.com> wrote:
>
>> I found that the last column is the digits 2.00, so the problem is solved.
>>
>> On Thu, Jan 5, 2017 at 10:42 PM, lily li <chocold12 at gmail.com> wrote:
>>
>>> Hi R users,
>>>
>>> I'm trying to concatenate two strings, while each string has numbers.
>>> For example, strings1 = c(1.2, 1.31, 1.4, 1.51, etc), strings2= c(2.1,
>>> 2.22, 2.3, 2.44, etc). I want to have all decimals for the two strings,
>>> such as: strings1= c(1.20, 1.31, 1.40, 1.51, etc), string2 = c(2.10, 2.22,
>>> 2.30, 2.44, etc).
>>> After concatenating, they become c(1.20--2.10, 1.31--2.22, 1.40--2.30,
>>> 1.51--2.44, etc)
>>> I use the code below, but after digits=2 in the parentheses, the length
>>> of each string has one more. What is the problem and how to do it another
>>> way? Thanks.
>>>
>>> cons  = paste(c(strings1, digits=2), c(strings2, digits=2), sep='-')
>>>
>>>
>>
>
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