mean
This function is used by Ignition's Expression language.
Description
Calculates the mean (a.k.a average) for the numbers in the given column of the given dataset or the mean of a series of numbers specified as arguments. When looking up the mean in a dataset, the column may be specified as an index or as a column name. Any null values in the column are ignored. If there are no rows in the dataset, null is returned.
Syntax
mean(dataset, columnIndex)
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Parameters
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DataSet dataset - The dataset to use.
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int columnIndex - The index of the column to use. Must be a column index of the provided dataset.
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Returns
- int/float - The mean of the values in that column.
Syntax
mean(dataset, columnName)
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Parameters
-
DataSet dataset - The dataset to use.
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string columnName - The name of the column to search through. Must match a column name in the provided dataset.
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Returns
- int/float - The mean of the values in that column.
Syntax
mean(value[, value...])
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Parameters
- int/float value - A number. Can be as many values as needed. Can be either a float or an integer.
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Returns
- int/float - The mean of the values.
Examples
For example, suppose you had a table with this dataset in it:
| ProductCode | Quantity | Weight |
|---|---|---|
| BAN_002 | 380 | 3.243 |
| BAN_010 | 120 | 9.928 |
| APL_000 | 125 | 1.287 |
| FWL_220 | 322 | 7.889 |
mean({Root Container.Table.data}, "Weight") //... would return 5.58675
mean(1,2,3) //... would return 2