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1. #SHADING REGIONS IN A SCATTER CHART EXCEL HOW TO#
2. #SHADING REGIONS IN A SCATTER CHART EXCEL SERIES#

=SERIES(,NormalCurve.xlsx!X,NormalCurve.xlsx!Y,1) You’ll find this formula easier work with if you convert its cell references to range names and remove the chart title. If you click on the chart’s curve, your formula should look something like this: Select the chart object press Ctrl + X to cut it activate the Reports worksheet then press Ctrl + V to paste it into that worksheet. Its line color might be different from mine, but it should otherwise resemble the first example below.Įxcel will create your chart on the Data worksheet. In the drop-down box, choose Scatter with Smooth Lines.Īfter you do so, Excel will generate your initial chart. To set up the chart of the normal curve, select the range C2:D101.

#SHADING REGIONS IN A SCATTER CHART EXCEL SERIES#

You will use one data series to generate the normal curve and another data series to display the shaded area. (Or choose Ctrl + Shift + F3.) In the Create Names dialog, make sure only Top Row is checked then choose OK. To do so, first select the range A1:E101. To complete this step, assign the labels in row 1 of the Data sheet to the data beneath those labels. (Or type Alt, H, F, I, S.) In the dialog, enter 100 as its Stop value then choose OK.Ĭolumn B returns the Z values from the lowest value to the highest value:Ĭolumn C calculates the chart’s X (horizontal) value for each Z value:Ĭolumn D calculates the chart’s Y (vertical) value:Ĭolumn E calculates the Y values for the area to be shaded:Į2: =IF(OR(C2>ShadeRight,C2formula defines the ending point for the right side of the curve. This formula defines the ending point for the left side of the curve. By doing so, we define the right side of the shaded area. We use the same logic with the PctShade area as for the PctClear area. ShadeRight =NORM.S.INV(PctShade)*StdDev+Mean To calculate the extent of the shade at its left side, we multiply the NORM.S.INV result by the amount of the standard deviation, then add the mean. Given the probability (PctClear) that a variable is within a certain distance of the mean, it finds the z value…the number of standard deviations. The NORM.S.INV function is the inverse of the NORM.S.DIST function. ShadeLeft =NORM.S.INV(PctClear)*StdDev+Mean The numbers in the Calculations section are returned by formulas: PctClear is the minimum (left-most) probability that will be shaded.) (Here’s another way of looking at the PctShade and the PctClear: The PctShade is the maximum (right-most) probability that will be shaded beneath the curve. The percentage of the unshaded area from the left side of the curve, from. The percentage of the shaded area from the left side of the curve, from. The largest number of standard deviations to be plotted. The smallest number of standard deviations to be plotted. The number of rows of data to be plotted. The numbers in the Settings section are values enter them as shown. Ensure that only Left Column is checked, then choose OK. To do so, select the range A2:B8 and choose Formulas, Defined Names, Create from Selection. In the Control worksheet, first set up the area shown here.Īfter you enter the labels in column A, assign them as range names in column B. Name one of these Control, one Data, and the other Report. To set up the data, open a new workbook with at least three worksheets. In general, you create a normal curve just as you create any other chart in Excel: You set up the data and then chart it.

#SHADING REGIONS IN A SCATTER CHART EXCEL HOW TO#

This article explains how to create the figures in Excel.Įven if you have no particular reason to chart a normal curve, you might find the techniques interesting, because you might need to use similar techniques when you create other charts. In An Introduction to Excel’s Normal Distribution Functions I presented several figures somewhat like the one above. And second, different versions of Excel change the way you work with error bars, which is the feature you use to assign the shading. First, the method is difficult to figure out in the first place. There are two reasons the task is challenging. But once you know how, it’s not difficult to do. Adding shaded areas to normal curves like this is a challenging task in Excel charting.