Creates a vertical bar graph centered at each of the bin centers x[] and plots the specification limits and natural process limits as vertical lines against the bar graph. This is useful for viewing the results of a histogram against relevant limits. You can turn on and off drawing of the specification limits or the natural process limits, and specify the sigma multiplier to use for the natural process limits (default 3), by wiring in the display mode. If the display mode is not wired, the specification limits and natural process limits (at 3 sigma) will be drawn by default.


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Inputs/Outputs

  • c1ddbl.png bin centers/axis x[] —

    bin centers/axis x[] contains the x-axis values for the center of each histogram bin. Connect the x values output of the General Histogram VI to this input.

  • c1du32.png histogram y[] —

    histogram y[] is organized so that each element of this array is arranged so that the number of observations in each bin of the histogram is from left to right. This is an output from the General Histogram VI.

  • cdbl.png upper spec limit —

    (DBL) - The upper specification limit of the process.

  • cdbl.png lower spec limit —

    (DBL) - The lower specification limit of the process.

  • cdbl.png process mean —

    (DBL) - the estimated process mean. See the Process Mean & Sigma VI or Sample Statistics VI.

  • cdbl.png process sigma —

    (DBL) - the estimated process sigma. See the Process Mean & Sigma VI or Sample Statistics VI.

  • ccclst.png display mode (T,T,3) —

    Optional display mode specifier. Cluster of: show spec. limits (T) (Boolean) - if true, the specification limits will be drawn. show natural process limits (T) (Boolean) - if true, the natural process limits will be drawn on the plot. NPLimit sigma (3) (U32) - The sigma multiplier for the natural process limits. By default this is 3. The natural process limits drawn will then be process mean +/- NPLimit sigma*process sigma. Note that if you wire up the display mode cluster to change one of the default settings, you must specify all three elements. If unwired, the specification limits and the natural process limits will be drawn by default.

  • cbool.png show spec limits —

    (Boolean) - if true, the specification limits will be drawn.

  • cbool.png show natural process limits —

    (Boolean) - if true, the natural process limits will be drawn on the plot.

  • cdbl.png NP limit sigma —

    (U32) - The sigma multiplier for the natural process limits. By default this is 3. The natural process limits drawn will then be process mean +/- NPLimit sigma*process sigma.

  • i1dcclst.png vertical bar graph with limits —

    (X, Y Graph) - centered vertical bar graph with Limits optionally drawn at the natural process limits and specification limits. Each bar is drawn at the height given in the Histogram input and centered at the values given in the Bin Centers input.