What I am trying to do is suppress the y axis label prefix and value (LCL1 = #) for my XBar-R Chart. Ultimately I want to show lines for the Mean and 3 sigmas, but not the y-axis labels, but still want to show both the lines and y-axis labels for the upper and lower spec limits.
My main problem is that everything on the y-axis is overlapping.
Quite a few of our examples do exactly what you describe. See WERulesVariableControlCharts.XBarRChart and WERulesVariableControlCharts.XBarSigmaChart - see picture
// Don't show sigma 1 and sigma 2 alarm line labels because graph too crowded this.PrimaryChart.GetControlLimitData(SPCChartObjects.SPC_UPPER_CONTROL_LIMIT_1).LabelLimit = false; this.PrimaryChart.GetControlLimitData(SPCChartObjects.SPC_LOWER_CONTROL_LIMIT_1).LabelLimit = false; this.PrimaryChart.GetControlLimitData(SPCChartObjects.SPC_UPPER_CONTROL_LIMIT_2).LabelLimit = false; this.PrimaryChart.GetControlLimitData(SPCChartObjects.SPC_LOWER_CONTROL_LIMIT_2).LabelLimit = false;