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Owning Palette: Control Charts Drawing VIs

Installed With: Statistical Process Control Toolkit

Draws a tier chart (also known as a tolerance diagram). Plots the spread of the observations in each sample. Optionally, the specification limits and/or the natural process limits are also plotted against the observations.

You can turn on and off drawing of the specification limits or the natural process limits, and choose the sigma multiplier to use for the natural process limits (default three), by wiring in the display mode. If you do not wire the display mode, the specification limits and natural process limits are not drawn.

	starting sample number (0) is the sample number of the first sample the VI uses to label the chart x-axis. If unwired, sample labeling on the x-axis will start at zero.
	samples X are the values to be plotted on the tolerance chart. Each row is a sample with n observations where n is the number of columns in the 2D array. N is also known as the subgroup size.
	upper spec limit is the upper specification limit of the process.
	lower spec limit is the lower specification limit of the process.
	process mean is the estimated process mean. See the Process Mean & Sigma VI for more information about how the process mean and process sigma values are calculated.
	process sigma is the estimated process sigma.
	display mode (F,F,3) is the optional display mode specifier. If unwired, the VI will not draw the specification and natural process limits by default. This cluster contains the following. Note  If you wire the display mode cluster to change one of the default settings, you must specify all three elements. show spec limits specifies whether to draw the specification limits on the chart. The default is FALSE. show natural process limits specifies whether to draw the natural process limits on the chart. The default is FALSE. NP limit sigma is the sigma multiplier for the natural process limits. By default, this is 3.0. The natural process limits drawn on the chart will then be process mean ± NP limit sigma*process sigma.
	tier chart is a graph in which the VI plots the observations in each sample vertically. Optionally the VI plots the upper and lower specification limits and the mean specification value, and/or the natural process limits and process mean against the sample plots.