1. Grammar and usage

(1) Syntax: frequency(data_array, bins_array)

Parameter Description:

data_array: An array or set of arrays of statistical data sources.

bins_array: An array of bins that group the data source. It is necessary to segment points, such as [60,80] that is 60,80 nodes.

(2) Usage: It is used to count the frequency of the specified grouping interval, and returns the frequency distribution of a set of data in a split vertical array.

2. Examples

(1) Count the number of people in each language grade segment by group.

Enter "=FREQUENCY($F$2:$F$7,B11:B13)", and must press shift+ctrl+enter to pull down the formula. Because the grouping statistics of the frequency function does not include small, but includes large, for example, to obtain [90,100], the segment point needs to be less than 90, and if the segment points are 90 and 100, the value range is (90,100].

(2) Count the number of women in each language achievement segment by group.

Enter "=FREQUENCY(IF($C$2:$C$7="Female",$F$2:$F$7,""),B10:B13)" and must press shift+ctrl+enter to pull down the formula.

Note : ① The area needs a demarcation point, and each node includes the big and does not include the small.

②You cannot manually enter "{}", otherwise the text will be displayed directly as shown in the figure below.

3. The difference with the countif function

①The frequency function can directly use a formula to pull down to sum the number of groups.

②countif must write its own formula for each group.

The formula for the number of [90,100] is: "=COUNTIF(F2:F7,">=90")", as shown in the figure below.

The formula for the number of [80,90) is: "=COUNTIF(F2:F7,"<90")-COUNTIF(F2:F7,"<80")", as shown in the figure below.

The formula for the number of [60,80) is "=COUNTIF(F1:F7,"<80")-COUNTIF(F1:F7,"<60")", as shown in the figure below.

The formula for the number below 60 is "=COUNTIF(F1:F7,"<60")", as shown in the figure below.

reference article

The specific function of the countif function can refer to: https://so.csdn.net/so/search?q=countif&t=blog&u=weixin_50853979

The usage and examples of the frequency function of excel