procedure SetAxis(dataName,series: Str255;axisMin,axisMax, majorTick : real; minorTick, digits : integer; sci, autoSet : boolean);

Sets the value axis information for the specified data window.  The parameters are:

dataName = Data window name.
series = X, Y, or Z
axisMin, axisMax = Axis minimum and maximum.
majorTick = Major tick increment.
minorTick = Number of minor ticks
digits = Number of decimal places shown.
sci = TRUE: show in scientific notation.
autoSet = Automatically set axis.

Also see:  SetSeries