[R] need help in if else condition

[Shubhasmita Sahani]

Hello Eric,
Thank you, it worked. both approach.

On Wed, Jul 10, 2019 at 2:09 PM Eric Berger <ericjberger using gmail.com> wrote:

> Change the definition of de to
>
> de <- data.frame(d,e,stringsAsFactors=FALSE)
>
> Then you should be ok.
>
> Some additional remarks:
>
> 1. The ifelse() command is a bit tricky in R. Avoiding it is often a good
> policy.
> 2. I find %in% very useful. You could replace the multiple conditions check
>      de$d=="-"|de$d=="dnr"|de$d=="post"
>     by
>     de$d %in% c("-","dnr","post")
>
> Following the comments above would lead to code such as
>
> de <- data.frame(d,e,stringsAsFactors=FALSE)
> de$f <- de$d
> de$f[ de$d %in% c("-","dnr","post") ] <- 0
>
> HTH,
> Eric
>
>
>
>
>
>
> On Wed, Jul 10, 2019 at 10:54 AM Shubhasmita Sahani <
> shubhasmita.sahani using gmail.com> wrote:
>
>> Hello all,
>> I am trying to run if else condition to alter my data. I have created a
>> column F with reference to column d  where I want to replace the value to
>> 0 where ever it finds a string or character value like  -,dnr, post and
>> keep the rest of the rows should have the original value of column d. It
>> is
>> converting the text to 0 but the numeric values are not the same it is
>> some
>> value.. will you please help me to figure out why it is happening and what
>> should be the proper code
>>
>> here are the code and the output
>>
>> d=c(1,2,3,"-","dnr","post",10)
>> e= c(2,2,3,4,5,6,7)
>> de<- as.data.frame(cbind(d,e))
>> de$f<-ifelse (de$d=="-"|de$d=="dnr"|de$d=="post",0,de$d)
>>
>> head(de)
>>
>>   d e f
>> 1  1 2 2
>> 2  2 2  4
>> 3  3 3 5
>> 4  - 4 0
>> 5  dnr 5 0
>> 6 post 6 0
>> why the values are changing in  with if else condition
>>
>>
>> --
>> Thanks & Regards,
>> Shubhasmita Sahani
>>
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>>
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>

-- 
Thanks & Regards,
Shubhasmita Sahani

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