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C Library Functions  - plotu (3)

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NAME

plotu(3f) - [M_datapac:GENERIC_LINE_PLOT] generate a line printer 4-plot

CONTENTS

Synopsis
Description
Options
Examples
Author
Maintainer
License
References

SYNOPSIS

SUBROUTINE PLOTU(X,N)

DESCRIPTION

PLOTU(3f) produces the following 4 plots-- all on the same printer page--

1.	data plot--x(i) versus i
2.	autoregression plot--x(i) versus x(i-1)
3.	histogram
4.	normal probability plot

In addition, location, scale, and autocorrelation summary statistics are printed out automatically on the same page.

These plots give the data analyst a quick first-pass check at some of the underlying assumptions typically made-- constant location, constant scale, no outliers, unautocorrelated data, symmetry, normality.

OPTIONS

X	description of parameter
Y	description of parameter

EXAMPLES

Sample program:

   program demo_plotu
   use M_datapac, only : plotu
   implicit none
   ! call plotu(x,y)
   end program demo_plotu

Results:

AUTHOR

The original DATAPAC library was written by James Filliben of the Statistical Engineering Division, National Institute of Standards and Technology.

MAINTAINER

John Urban, 2022.05.31

LICENSE

CC0-1.0

REFERENCES

o	FILLIBEN, ’SOME USEFUL COMPUTERIZED TECHNIQUES FOR DATA ANALYSIS’, (UNPUBLISHED MANUSCRIPT AVAILABLE FROM AUTHOR), 1975.
o	HAHN AND SHAPIRO, STATISTICAL METHODS IN ENGINEERING, 1967, pages 260-308.
o	FILLIBEN, ’THE PROBABILITY PLOT CORRELATION COEFFICIENT TEST FOR NORMALITY’, TECHNOMETRICS, 1975, pages 111-117.

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Nemo Release 3.1

plotu (3)

July 22, 2023

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