Computes single points for both X-bar and Range or X-bar and Sample Standard Deviation control charts. This is useful for plotting control charts one point at a time while samples are collected. You must still use the X-bar & R or X-bar & S Chart VIs to calculate the control limits for the chart. FORMULAS: X-bar = mean(sample X) std. dev. = sample standard dev (sample X) range = MAX(sample X)-MIN(sample X)


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Inputs/Outputs

  • c1ddbl.png sample X —

  • idbl.png X-bar —

    (DBL) - the mean of the input sample. This is for plotting on the X-bar control chart.

  • idbl.png range R —

    (DBL) - the range of the input sample. This is for plotting on the Range control chart.

  • idbl.png std dev s —

    (DBL) - the sample standard deviation of the input sample. This is for plotting on the S control chart.