[ferret_users] Problem on FINDHI function

[Luiz Paulo <lassad@xxxxxxxxxxx>]

Hi all,

I'm trying to find the high values of a variable on my netcdf file. The 
variable is a four dimensional potential temperature field (temp(x,y,z,t)).
I go to have the maximum values using the @MAX function but I didn't got to 
localize them using the FINDHI functio. I simply did the following:

yes? use ocean_month.nc
yes? show data
.
.
.
.
TEMP     Potential temperature            1:360     1:200     1:50      1:11

yes? findhi(temp[z=0,x=-180:180,y=-90:90,l=1:11])
 **ERROR: command syntax: findhi(temp[z=0,x=-180:180,y=-90:90,l=1:11])

What I'm doing wrong?

Thanks for the help,

Luiz