2.13.1.19 rowstats

Brief Information

Compute descriptive statistics on data rows

Command Line Usage

1. rowstats irng:=col(1)[1]:col(10)[1] mean:=mymean

2. rowstats irng:=col(1)[1]:col(5)[3] min:=Col(6) max:=Col(7)

Variables

Display
Name
Variable
Name
I/O
and
Type
Default
Value
Description
Input irng

Input

Range

<active>

The input data range.

Mean mean

Output

vector

<new>

The mean score of the input data.

Standard Deviation sd

Output

vector

<new>

The standard deviation of the input data.

SE of Mean sem

Output

vector

<optional>

The standard error of mean

Minimum min

Output

vector

<optional>

The minimum value of the input data.

Maximum max

Output

vector

<optional>

The maximum value of the input data

Number of Points n

Output

vector

<optional>

The number of non-missing values of the input data.

Sum sum

Output

vector

<optional>

The sum of the input data.

Description

This X Function can be used to describe the basic aspects of each row of data in a specific range, including the mean score, standard deviation, standard error of mean, minimum value, maximum value, sum and number of non-missing values.

Examples

1. To return the standard deviation of an active rows, use the script command:
rowstats sd:=mysd; mysd=

2. To open the dialog of rowstats, use the script command:
rowstats -d;

Algorithm

Let Rowstats help English files image002.gif denote the input values for each row, the computation equations can be expressed as follows

1. Sum: Rowstats help English files image004.gif</sub>

2. Mean:Rowstats help English files image006.gif</sub>

3. Standard deviation: Rowstats help English files image008.gif</sub>

4. Standard error for mean:Rowstats help English files image010.gif</sub>

References

Silverman, B.W. 1986. Density Estimation for Statistics and Data Analysis, New York: Chapman and Hall.

Tukey, J.W. 1977. Exploratory Data Analysis, Reading, MA: Addison-Wesley.

Erickson B H and Nosanchuk T A. 1985. Understanding Data. Open University Press.

Related X-Functions

rowquantiles, stats, moments, quantiles


Keywords:mean, median, standard deviation, sum