else(dd==0,sign(dd))) * (abs(dd) + mm / 60 + ss
>> / 3600)
>> Lat<-strapply(x, "(.*):(.*):(.*)", Convert, simplify = TRUE)
>> Lat
>>
>> #so I now have the correct absolute decimal degrees in all cases and the
>> correct direction in all cases ex
Thank you so much!
From: David Winsemius
Cc: r-help r-help
Sent: Thu, 21 October, 2010 15:43:37
Subject: Re: [R] Changing sign on absolute numbers 0 problems
With permission I am copying a private communication to the list.
On Oct 21, 2010, at 9:20 AM, Sadz
sign from
MD_LATITUD, so that I can change
# 'Convert <- function(d, m, s, dd = as.numeric(d), mm =
as.numeric(m), ss = as.numeric(s)) sign(dd) * (abs(dd) + mm / 60 +
ss / 3600)' to something like
# 'Convert <- function(sign, d, m, s, dd = as.numeric(d), mm =
as.numeric
"Sadz A" wrote in message
news:419230.77523...@web24610.mail.ird.yahoo.com...
> Hi,
>
> I am trying to do some calculations turning DMS data to decimal degrees
> using
> the formula (D+(M/60)+(S/3600)), some of the D's involve -ve numbers, the
> easiest way to do the calculation is to use absol
On 10/20/2010 12:25 PM, Ben Bolker wrote:
Sadz A yahoo.co.uk> writes:
This works fine untill D=0
because then 'sign' does not give 0 a +ve sign it takes it as 0 and multiplies
decimal by 0 to give 0.
example
D<-0
decimal<-D+(M/60)+(S/3600)
decimal.degs<-sign(D)*decimal
decimal.degs
0
d
On Oct 20, 2010, at 3:19 PM, David Winsemius wrote:
On Oct 20, 2010, at 11:47 AM, Sadz A wrote:
Hi,
I am trying to do some calculations turning DMS data to decimal
degrees using
the formula (D+(M/60)+(S/3600)), some of the D's involve -ve
numbers, the
easiest way to do the calculation i
Sadz A yahoo.co.uk> writes:
>
> This works fine untill D=0
> because then 'sign' does not give 0 a +ve sign it takes it as 0 and
> multiplies
> decimal by 0 to give 0.
> example
> D<-0
> decimal<-D+(M/60)+(S/3600)
> decimal.degs<-sign(D)*decimal
> decimal.degs
> 0
>
decimal.degs <- ifelse
On Oct 20, 2010, at 11:47 AM, Sadz A wrote:
Hi,
I am trying to do some calculations turning DMS data to decimal
degrees using
the formula (D+(M/60)+(S/3600)), some of the D's involve -ve
numbers, the
easiest way to do the calculation is to use absolute numbers then
use the 'sign'
functi
Hi,
I am trying to do some calculations turning DMS data to decimal degrees using
the formula (D+(M/60)+(S/3600)), some of the D's involve -ve numbers, the
easiest way to do the calculation is to use absolute numbers then use the
'sign'
function in R to change the answer back to the correct -
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