Re: calculate the mean(middle) of points with the format dd:mm:ss.x

Mind you that the mean position is NOT the simple mean of the lon, lats

See

http://www.mathworks.com/help/map/_f10-6860.html

Joaquim

> Dear Eduardo
>
> Thank you very much for your help.
> I made it using --OUTPUT_DEGREE_FORMAT=ddd:mm:ss.x in stead of 
>   --FORMAT_GEO_OUT='+ddd:mm:ss.x'
> because I use ver.4 GMT.
>
> regards,
>
> takaya
>
> > Date: Tue, 10 Dec 2013 01:21:41 -0300
> > From: [email protected]
> > Subject: Re: [GMT-HELP] calculate the mean(middle) of points with 
> the format dd:mm:ss.x
> > To: [email protected]
> >
> > Hi Takaya,
> >
> > put your values in a 1-column data file, and then:
> >
> > gmtmath -fg -S -T your_file MEAN = --FORMAT_GEO_OUT='+ddd:mm:ss.x'
> >
> > BTW, If you someday read gmtmath man page, there is an example of this
> > kind of calculation using MODE instead of MEAN.
> >
> > Eduardo.-
> >
> >
> > Quoting Namba Takaya <[email protected]>:
> >
> > > Dear Sir
> > > I would like to calculate the mean(middle) of points such as polygon
> > > with the format dd:mm:ss.x by GMT command.
> > > For example, this is data of longitudes as below and I wish to
> > > calculate the mean of all the longitudes by GMT.
> > > 04:14:36.004:23:33.604:34:52.504:14:27.004:14:10.5...............
> > > regards,
> > > takaya
> >
> >
> >
> > --
> > Eduardo A. Suarez
> > Facultad de Ciencias Astronómicas y Geofísicas - UNLP
> > FCAG: (0221)-4236593 int. 172/Cel: (0221)-15-4557542/Casa: 
> (0221)-4526589
> >
> >
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