概要
This function returns the population covariance, which is the average of the products of deviations for each data point pair in two sets of numbers.
書式
COVARIANCE.P(array1,array2)
引数
引数として指定する２つのデータ配列は、次の基準を満たす必要があります。
- The data should contain numbers, names, arrays, or references that are numeric. If some cells do not contain numeric data, they are ignored.
- The data sets should be the same size, with the same number of data points.
- The data sets should not be empty, nor should the standard deviation of their values equal zero.
解説
Use this covariance function to determine the relationship between two sets of data. For example, you can determine whether greater income accompanies greater levels of education in a population.
The covariance is calculated as follows, where n and y are the sample means, AVERAGE(array1) and AVERAGE(array2), and n is the sample size.
データ型
Accepts arrays of numeric data for both arguments. Returns numeric data.
サンプル
COVARIANCE.P(J2:J5,L2:L5)
COVARIANCE.P(R2C12:R15C12,R2C14:R15C14)
COVARIANCE.P({7,5,6},{7,4,4}) gives the result 1
COVARIANCE.P({5,10,15,20,25},{4,8,16,32,64}) gives the result 144
使用可能な製品バージョン
製品バージョン 7.0 以降で使用できます。
関連トピック