Re: January at the end on the time axis

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi Domingos,
When you use the /edges qualifier with /t=1:12:1 you are creating an axis
with 12 edge values but only 11 coordinate points:

  yes? define axis/t0=1-jan-0000/t=1:12:1/edges/units=months/modulo tyear 
 yes? list t[gt=tyear]
            VARIABLE : T
                       axis TYEAR
            SUBSET   : 11 points (TIME)
  15-FEB      /  1:   1.50
  17-MAR      /  2:   2.50
  16-APR      /  3:   3.50
  16-MAY      /  4:   4.50
  16-JUN      /  5:   5.50
  16-JUL      /  6:   6.50
  16-AUG      /  7:   7.50
  15-SEP      /  8:   8.50
  16-OCT      /  9:   9.50
  15-NOV      / 10:  10.50
  16-DEC      / 11:  11.50

I think you'll get the axis you want if you use /T=0:12:1
in the definition of the climatological axis tyear. Or,
use one of the axes from the climatologcal_axes dataset. 
 yes? use climatological_axes
 yes? cancel data climatological_axes
 ...

Domingos Fernandes Urbano Neto wrote:

> Hi Ferrets,
>
> I just created a single cdf file from 12 monthly 2D cdf files following the
> tip at Ferret's FAQ website. However, when I plot the seasonal cycle my first
> time step is Feb and Jan apears at the end of the time axis.
>
> What's going on? How can I fix this? Did I make some mistake defining the time
> axis?
>
> I did:
>
> define axis/t0=1-jan-0000/t=1:12:1/edges/units=months/modulo tyear
> define grid/t=tyear gg
> let tx = t[g=gg]*0+taux
> let ty = t[g=gg]*0+tauy
> set variable/title="Zonal Wind Stress"/unit="kg/m/s2" tx
> set variable/title="Meridional Wind Stress"/unit="kg/m/s2" ty
> !loop over input files
> use qs1
> save/file=quickscat.cdf tx[l=1],ty[l=1]
> use qs2
> save/append/file=quickscat.cdf tx[l=2],ty[l=2]
> use qs3
> ...
>
>
> Thanx,
> Domingos.
> --
> Universidade de Sao Paulo
> Instituto Oceanografico
>
>