Sadz A sadz_a1...@yahoo.co.uk 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
will be appreciated.
Thank you
sadz
From: David Winsemius dwinsem...@comcast.net
To: David Winsemius dwinsem...@comcast.net
Cc: Sadz A sadz_a1...@yahoo.co.uk; r-help@r-project.org
Sent: Wed, 20 October, 2010 20:45:39
Subject: Re: [R] Changing sign on absolute numbers 0 problems
On Oct 20, 2010, at 3
Thank you so much!
From: David Winsemius dwinsem...@comcast.net
Cc: r-help r-help r-help@r-project.org
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
Winsemius dwinsem...@comcast.net
Cc: Sadz A sadz_a1...@yahoo.co.uk; r-help@r-project.org
Sent: Wed, 20 October, 2010 20:45:39
Subject: Re: [R] Changing sign on absolute numbers 0 problems
On Oct 20, 2010, at 3:19 PM, David Winsemius wrote:
On Oct 20, 2010, at 11:47 AM, Sadz A wrote:
Hi
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
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'
Sadz A sadz_a1000 at 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 -
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
On 10/20/2010 12:25 PM, Ben Bolker wrote:
Sadz Asadz_a1000at 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
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