Title

Gaussian Approximations to the Distribution of Sample Coherence

Date

1965

Index Abstract

Not Available

Photo Quality

Undetermined

Report Number

AFFDL TR 65-57

Creator

Enochson, L. D.

Goodman, N. R.

Corporate Author

Measurement Analysis Corporation

Laboratory

Air Force Flight Dynamics Laboratory

Extent

33

Identifier

AD0620987

Access Rights

Unknown

Distribution Classification

1

Contract

AF 33(615)-1418

DoD Project

1370

DoD Task

137005

DTIC Record Exists

Yes

Distribution Change Authority Correspondence

None

Distribution Conflict

No

Abstract

This report describes the results of an empirical study to develop a normalizing transformation for sample multiple coherence. The 'Fisher z- transformation' is employed. The expected value (including a bias term) and variance of the transformation have been experimentally determined. Numerical values of the transformation which is developed (including the bias term and variance) may be obtained with a reasonable amount of computation. Tables of the Gaussian distribution can then be used to obtain confidence limits and perform statistical tests. The computational methods and the digital computer program used for the study are described in detail. Flow charts of the program are given. Numerical results from the program results are presented. Examples of the use of the transformation are given for developing confidence limits for multiple coherence. A recommendation for a further theoretical study is presented.

Report Availability

Not available via Contrails

Date Issued

1965-06

Index In

DTIC

Type

report