Can anyone give me an idea
as to why the following MAPCALC equation will
not work?
_________________________________________________________
Mapset <akeeley> in Location <uk>
GRASS 4.1 > r.mapcalc
MY INPUT:
mapcalc> sum='if((min("u861002.dat","u861003.dat","u861004.dat",\
...> "u861005.dat","u861006.dat","u861007.dat")),(((9.0/24.0)*\
...> "@u861002.dat")+"@u861003.dat"+"@u861004.dat"+"@u861005.dat"\
...> +"@u861006.dat"+((15.0/24.0)*"@u861007.dat"+1.499)))
PROGRAM RESPONSE:
you have confused me
___________________________________________________________
Thanks,
Amy Keeley
akeeley@ncdc.noaa.gov
p.s. "u86100?.dat" are raster files. What I'm
trying to do is: [if(x,a)...a if x not zero, 0 otherwise]
| | | | | | | | | | | | | | | | |
V V V V V V V V V V V V V V V V V
So if the smallest value out of all of the raster files is
equal to a zero, the value in output map 'sum' is zero. If the smallest
value out of all of the raster files if not a zero, the
values are summed, with a simple multiplication done on the
first and last values, to produce the map 'sum'.