defining new variable

[Lijuan Wu]

Thanks for reply. Yes, I got the problem, I should disable fwrite before the next new fwrite. 

Lijuan 
  ----- Original Message ----- 
  From: Henrique Barbosa 
  To: GRADSUSR at LIST.CINECA.IT 
  Sent: Saturday, October 15, 2005 4:26 PM
  Subject: Re: defining new variable


  Wu,

  You don't need to save the data, just plot it! Try this:

  'mean=ave(ave(temp,lon=0,lon=360),t=1,t=1000)'
  'd mean'

  There's also an error in your script. When you use fwrite,
  you must "display" the variable to have it written to the file.
  And I think it would be better to fclose the file before a
  new fwrite.

  x's
  Henrique


  On 10/14/05, L Wu <lijuanwu at atmos.uiuc.edu> wrote:
    Hi, all, I have a question about defining new variables in grads.

    I have variable temp(96,80,14), if I want to define new variable like
    1000-day average of zonal mean temperature, and then plot the new variable, 
    I did it this way:

    define tz=ave(temp,x=1,x=96)
    set fwrite tz.dat
    set gxout fwrite
    define tmean=ave(tz, t=1,t=1000)
    set fwrite tmean.dat
    set gxout fwrite
    set cint 5
    set clab forced
    set clskip 2 
    d tmean

    but I cannot get the right plot, can anybody help me to see where is wrong,
    and whether need I to use set fwrite... and set gxout fwrite twice?

    Thanks in advance!



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