if {0} {2005-Nov-22 JM Very simple barchart}
package require BLT blt::barchart .g -title "Comparison" pack .g .g element create BT1 -xdata {1 2 3 4 5 6 7 8} -ydata {.76 .98 .88 .92 .96 .98 .91 .80} -label {Yields}\ -showvalues y