Problem creating pie chart w/ values less than 0.1

Hi all,

I am trying to create a pie chart but am getting the following error
message:

******************************
**********************************************************************
fatal:fspan: number of elements parameter is less-than-or-equal-to zero,
can't continue
fatal:Execute: Error occurred at or near line 3969 in file
$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl
fatal:Execute: Error occurred at or near line 33 in file piechart.ncl
****************************************************************************************************

It seems that when I have percentage values less than or equal to 0.1 going
into the pie chart, this crash occurs. Otherwise, it's fine.

Below is my script. Note the value of 0.0118351 which I believe causes the
crash:

************************************************************************************************
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"

 pcRes = True
 pcRes@gsnMaximize = True

 srcgroups = asciiread("srcgroups.txt",-1,"string")

 percent = (/ 0.111173, 3.05663, 5.30778, 3.19337, 7.87491, 4.52484,
0.0118351, 75.9194 /)

 color = (/ "red", "green", "orange", "yellow" \
          , "brown","magenta","blue","gray" /)

 wks = gsn_open_wks("ps","pie_chart")

 plot = pie_chart(wks, percent, srcgroups, color, pcRes)
************************************************************************************************

Any suggestions? Thanks for any help you could give me.

--
Kevin D. Talgo | Research Associate
Center for Environmental Modeling for Policy Development
Institute for the Environment
University of North Carolina at Chapel Hill
Chapel Hill, NC 27599-6116
Tel: (919) 962-0741
http://www.ie.unc.edu/cempd

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Received on Mon Jul 19 20:24:39 2010