Dear Ferreters,
I would like to plot a variable and it's error as a filled
polygon.
Based on "error_bars_demo.jnl" I'm running the following
commands:
use coads_climatology
let mean = airt[x=60W:10E, y=0, l=@ave]
let stdv = airt[x=60W:10E, y=0, l=@var]^0.5
plot/vlimits=23:30 mean
go plot_swath poly/over/pal=gray/nolab mean-stdv, mean+stdv
When I call the plot_swath script, Ferret returns the
following error message:
**ERROR: error: data is not a
line
The same happens when I try "go error_bars".
"error_bars_demo.jnl" plots ok, and I can't see what I'm
doing wrong in comparison to this demo script.
Could someone please help me?
--
Paulo Santiago
Doutorado em Meteorologia
Programa de Pós-Graduação em Meteorologia
Instituto Nacional de Pesquisas Espaciais