```.-
help for ^ci2^, ^cii2^               (STB 59 - sg159 PT Seed - paul.seed@@kcl.a
> c.uk)
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Confidence intervals for correlations
-------------------------------------

^ci2^ varname1 varname2 [^if^ exp] [^in^ range] [weight] [^, COrr SPear
> man^]

^cii2^ #n #corr [^, corr^]

Description
-----------

Without the ^corr^ or ^spear^ options, ^ci2^ and ^cii2^ behave as @ci@ and @cii
> @.

With option ^corr^, ^ci2^ calculates the Pearson product moment correlation
& produces a confidence interval, based on Fisher's transformation.  As with
@correlate@, ^ci2^ takes frequency and analytic weights.

With option ^spearman^, (with or without ^corr^), Spearman's rank correlation i
> s used.

^cii2^ is the immediate version.  There is no separate Spearman option, because
>
the method for finding the correlation is the same in both cases.

Examples
--------
Use for correlations
. ^ci2 colorime icp , corr^

. ^ci2 colorime icp , corr spearman^
. ^ci2 colorime icp , spearman^
(Note: these last two are effectively the same.)

. ^cii2 78 .52 , corr^                 (78 paired observations, correlation 0.
> 52)

Use as ^ci^ and ^cii^
. ^ci2 mpg^
. ^ci2 mpg price, level(90)^
. ^ci2 promoted, binomial^
. ^ci2 count, poisson^
. ^ci2 deaths, exposure(pyears)^

. ^cii2 166 19509 4379^                 (166 obs, mean=19509, sd=4379)
. ^cii2 166 19509 4379, level(90)^
. ^cii2 10 1^                           (10 binomial events, 1 observed succes
> s)
. ^cii2 1 27, poisson^                  (27 Poisson events observed)

Also see
--------

Manual: [R] correlate
On-line: @correlate@, @pwcorr@

```