[gradsusr] If else statement in grads

[Jayakrishnan P.R]

Dear Sir,
            Thanks. It worked. I also searched similar issues in grads
archives and found one solution with if else statement by Serge Claudio and
it worked well for me. But Still I could not include the second if
condition which is if(W>=6&W<=26);'define c=(0.6+0.07*W)/1000';. generally
this will be included in the else statement except only during certain
conditions such as cyclones. But Still any way to include this too in the
script..?. The following is the currently working script with the output
figure attached.

'reinit'
'sdfopen uwnd.2009.nc'
'sdfopen vwnd.2009.nc'
'set lev 1000'
'set lat -10 45'
'set lon 30 110'
'define W=mag(uwnd,vwnd.2)'
if (W>= 3&W<= 6)
'define cd=(0.29+3.1/W+7.7/W**2)/1000'
else
'define cd=(0.6+0.07*W)/1000'
endif
'define taux=1.3*cd*W*uwnd'
'define tauy=1.3*cd*W*vwnd.2'
'd cd'
'printim cdrag2.jpg white'


-- 
Sincerely
***********************************************
Jayakrishnan.P.R
Teaching Associate (Atmospheric Science)
Academy of Climate Change Education and Research
Kerala Agricultural University
Vellanikkara-680 656

and also

Research Fellow (Part Time)
Department of Atmospheric Sciences
CUSAT, Cochin-682 016
Kerala, India.
Mob: 09496026547

***********************************************
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