chi.noncentral.conf: Non-central Chi-Squared Confidence Interval

Description Usage Arguments Value References See Also Examples

Description

Confidence interval for the Non-centrality parameter of Non-central chi-squared distribution

Usage

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chi.noncentral.conf(chival,df,conf,prec=.00001)

Arguments

chival

The observed Chi-Squared value

conf

The confidence level (e.g. .95)

df

Degrees of freedom

prec

Precision of estimate

Value

A 2X2 matrix whose rows represent the upper and lower bounds, and whose columns represent the parameter value and upper tail percentiles.

References

Smithson, M.J. (2003). Confidence Intervals, Quantitative Applications in the Social Sciences Series, No. 140. Thousand Oaks, CA: Sage.

See Also

Chisquare

Examples

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chi.noncentral.conf(6,1,.95)
#            Result:

#      Non-Central          %
#Lower   0.2089385 0.97500899
#Upper  19.4443359 0.02499302


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