Re: [ferret_users] Bar chart

[Ansley Manke <ansley.b.manke@xxxxxxxx>]

Hi,
Inside the bar_chart script, there are commands to determine the direction of the variable, so the script can define variables with the polygon shape. It uses the RETURN=SHAPE command. If your variable is called precip, then take a look at what happens when you say,

yes?  say  `precip,return=shape`

Even though your variable is 1-dimensional, sometimes that RETURN command can give an answer that makes it seem to have more dimensions.  For instance

yes? use coads_climatology
yes? let sstave = sst[x=@ave,y=@ave]
yes? say `sstave,return=shape`
  !-> MESSAGE/CONTINUE XYT
XYT

but

yes? let sstave = sst[x=0:360@ave,y=-90:90@ave]
yes? say `sstave,return=shape`
 !-> MESSAGE/CONTINUE T
T

We've actually improved this particular behavior for getting the shape of a transformed variable for the next Ferret release.  In the meantime maybe you can redefine your average.  Let us know if you need a hand.

Ansley

On 2/27/2013 3:25 AM, Xueli Wang wrote:

Dear Ferret users,

I have data in netCDF and I want to use ferret to plot 12 month's mean precipitation in bar chart. I can use "plot" to plot it as a line, but when use "go bar_char3 poly/line/fill/..." then it says "it is not a line" ...

Does anyone have experience about this?

Thanks!
Xueli