Re: How to use SAMPLEXY?

[Ansley Manke <ansley@xxxxxxxxxxxxx>]

Hello Ina,
It looks as if you have run into a bug in the SAMPLEXY function
which has been fixed in Ferret version 5.22, to be released shortly.
I hope you can wait for that release.

Along with the next release of Ferret there will be an update to the Users
Guide which has documentation for the newer functions such as SAMPLEXY.

Ansley Manke

ina wrote:

> Dear Ferret Users,
>
> mybe i have a stupid question but i can't find out how to work with the
> function SAMPLEXY in the right way, in my example, all the values at a
> position x are the same and independently from y. Here my example and
> the data:
>
> Many Thanks for your help in advance
> regards Ina Uhde
>
> set view ul
> def axis /X=-10:30:10 xachs
> def axis /Y=100:500:100 yachs
> def grid /x=xachs  /y=yachs xy
> file  /grid=xy /col=5 /var=d in1.dat
> shade /X=-20:40/Y=0:600 d
> file  /var="xptsnew,yptsnew" in2.dat
> plot/VS /over /I=1:25 /symbols xptsnew,yptsnew
>
> set view ur
> shade  /nokey /nolab /lev=(-99999) d[d=in1.dat]*0
> let b=SAMPLEXY(d[D=in1.dat,i=1:5,j=1:5],xptsnew[i=1:25],yptsnew[i=1:25])
> list /I=1:25 b
> go polymark poly/over/key/i=1:25 xptsnew yptsnew b square 0.01
> plot/VS /over/i=1:25 /symbols xptsnew,yptsnew
>
> in1.dat
> 5000.  3440.  2142.  1110.   258.
> 4131.  2995.  2010.  1412.  1000.
> 3536.  2777.  2000.  1900.  1883.
> 3171.  3000.  2775.  2817.  2910.
> 2901.  3254.  3636.  4000.  4035.
>
> in2.dat
> -10. 100.
> 0 100
> 10 100
> 20 100
> 30 100
> -10. 200.
> 0 200
> 10 200
> 20 200
> 30 200
> -10. 300.
> 0 300
> 10 300
> 20 300
> 30 300
> -10. 400.
> 0 400
> 10 400
> 20 400
> 30 400
> -10. 500.
> 0 500
> 10 500
> 20 500
> 30 500

--
Ansley Manke  Pacific Marine Environmental Laboratory  Seattle WA  (206)526-6246