how do i draw a distribution chart in excel
I have some data that is not a normal distribution. I would like to draw a
distribution chart of this data |
To plot a distribution, one option is to use the INT and FREQUENCY functions
in an array formula. If the title "Data" is in cell A1, assume that the data in column A is the data that you want to count. The "Bins" column consists of the groupings that you want. Data Bins Freq 4 1 3 2 2 3 3 4 4 5 5 4 2 3 To get the frequency, select the cell range C1:C5. With the cells still selected, enter this formula in the formula bar: =INT(FREQUENCY(A2:A10,B2:B6)) Then, press the Control - Shift - Enter keys at the same time. The combination of Control - Shift - Enter enter the formula enter the formula as an "array" formula. An array formula appears with the "{" in the front and a "}" at the end. The results should look like this: Data Bins Freq 4 1 0 3 2 2 2 3 3 3 4 3 4 5 1 5 4 2 3 Now just create a column or bar chart using the data in the range C2:C6 as the source to create your distribution. ---- Regards, John Mansfield http://www.pdbook.com "travish19" wrote: I have some data that is not a normal distribution. I would like to draw a distribution chart of this data |
In John's formula, the INT function is extraneous.
If your values are not whole numbers, they might not be placed in the bin you expect or want. 3.21 is counted in the '4' bin, for example. To count each data value in the bin of its integer part (i.e., put 3.21 into 3 where you want it), put INT inside the Frequency function around the data range: =FREQUENCY(INT(A2:A10),B2:B6) Hold CTRL+SHIFT while pressing ENTER, as John describes, then construct your chart. - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ John Mansfield wrote: To plot a distribution, one option is to use the INT and FREQUENCY functions in an array formula. If the title "Data" is in cell A1, assume that the data in column A is the data that you want to count. The "Bins" column consists of the groupings that you want. Data Bins Freq 4 1 3 2 2 3 3 4 4 5 5 4 2 3 To get the frequency, select the cell range C1:C5. With the cells still selected, enter this formula in the formula bar: =INT(FREQUENCY(A2:A10,B2:B6)) Then, press the Control - Shift - Enter keys at the same time. The combination of Control - Shift - Enter enter the formula enter the formula as an "array" formula. An array formula appears with the "{" in the front and a "}" at the end. The results should look like this: Data Bins Freq 4 1 0 3 2 2 2 3 3 3 4 3 4 5 1 5 4 2 3 Now just create a column or bar chart using the data in the range C2:C6 as the source to create your distribution. ---- Regards, John Mansfield http://www.pdbook.com "travish19" wrote: I have some data that is not a normal distribution. I would like to draw a distribution chart of this data |
travish19 -
I have some data that is not a normal distribution. I would like to draw a distribution chart of this data < Use the Histogram tool of the Analysis ToolPak add-in that ships with Excel. Or, use the Better Histogram add-in available at www.treeplan.com. - Mike www.mikemiddleton.com |
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