[R] Looping through data error

[e-mail ma015k3113]

Rui, excellent diagnosis and suggestion. It worked but my damn logic is still not delivering what I want-will spend more time on it tomorrow.


Kind regards

Ahson

> On 13 April 2021 at 17:06 Rui Barradas <ruipbarradas using sapo.pt> wrote:
> 
> 
> Hello,
> 
> A close parenthesis is missing in the nd if.
> 
> 
> for (i in 1:(nrow(PLC_Return)-1)){
>    if (i == 1){
>      NUMBER_OF_SHARES[i] = 100/is.na(CLOSE_SHARE_PRICE[i])
>    } else if(is.na(PLC_Return[i, 1]) == is.na(PLC_Return[i + 1, 1])){
>      NUMBER_OF_SHARES[i]=0
>    } else {
>      NUMBER_OF_SHARES[i] = 100/is.na(CLOSE_SHARE_PRICE[i])
>    }
> }
> 
> 
> Hope this helps,
> 
> Rui Barradas
> 
> Às 13:51 de 13/04/21, e-mail ma015k3113 via R-help escreveu:
> > Dear All,I have a dataframe with 4 variables and I am trying to calculate how many shares can be purchased with £100 in the first year when the company was listed
> > 
> > The data looks like:
> > 
> > COMPANY_NUMBER YEAR_END_DATE CLOSE_SHARE_PRICE  NUMBER_OF_SHARES
> > 22705                                30/09/2002                          NA                                 0
> > 22705                                30/09/2004                         NA                                  0
> > 22705                                30/09/2005                        6.55                                 0
> > 22705                                30/09/2006                        7.5                                   0
> > 22705                                30/09/2007                        9.65                                 0
> > 22705                                30/09/2008                        6.55                                 0
> > 1091347                            31/01/2010                        8.14                                 0
> > 1091347                             31/01/2011                      11.38                                 0
> > 11356069                           30/06/2019                      1.09                                   0
> > SC192761                         31/01/2000                         NA                                   0
> > SC192761                         31/01/2001                         NA                                   0
> > SC192761                          31/01/2002                        NA                                   0
> > SC192761                         31/01/2004                         NA                                   0
> > SC192761                         31/01/2005                         NA                                   0
> > SC192761                          31/01/2006                      1.09                                   0
> > SC192761                          31/01/2008                      1.24                                   0
> > SC192761                          31/01/2009                       0.9                                    0
> > SC192761                          31/01/2010                     1.14                                    0
> > SC192761                           31/01/2011                    1.25                                    0
> > SC192761                          31/01/2012                     1.29                                    0
> > 
> > 
> > The code I have written is
> > 
> > i <- 0
> > 
> > for (i in 1:(nrow(PLC_Return)-1))
> > if (i == 1)
> > {
> > NUMBER_OF_SHARES[i] = 100/is.na(CLOSE_SHARE_PRICE[i])
> > } else if
> > (is.na(PLC_Return[i, 1]) == is.na(PLC_Return[i + 1, 1])
> > {
> > NUMBER_OF_SHARES[i]=0
> > } else
> > {
> > NUMBER_OF_SHARES[i] = 100/is.na(CLOSE_SHARE_PRICE[i])
> > }
> > 
> > 
> > The error I get is Error: unexpected 'else' in:
> > 
> > " NUMBER_OF_SHARES[i] = 0
> > } else"
> >> {NUMBER_OF_SHARES[i] = 100/is.na(CLOSE_SHARE_PRICE[i])}
> >>
> >> }
> > Error: unexpected '}' in "}"
> > 
> > 
> > Don't know how to fix it-any help will be appreciated.
> > 
> > 
> > Kind regards
> > 
> > 
> > Ahson
> > 	[[alternative HTML version deleted]]
> > 
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