Bookmark and Share

Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: st: St: z transformation - mibeta command

From   "Hoang Dinh Quoc" <>
To   <>
Subject   RE: st: St: z transformation - mibeta command
Date   Tue, 24 Apr 2012 16:35:29 +0700

Thanks a lot for your suggestions.

-----Original Message-----
[] On Behalf Of Nick Cox
Sent: Tuesday, April 24, 2012 3:31 PM
Subject: Re: st: St: z transformation - mibeta command

I think for most people a z transformation suggests (value - mean) /
SD but a glance at -mibeta- (SSC) suggests that you want Fisher's z
transformation for Pearson correlations.

There is a tutorial at

SJ-8-3  pr0041  .  Speaking Stata: Corr. with confidence, Fisher's z
        (help corrci, corrcii if installed) . . . . . . . . . . . .  N. J.
        Q3/08   SJ 8(3):413--439
        reviews Fisher's z transformation and its inverse, the
        hyperbolic tangent, and reviews their use in inference
        with correlations

but if you use the software download the update from SJ-10-4 and note
that Stata as well as Mata now supports the trio -sinh()-, -cosh()-,

More generally: threads you start seem to move very slowly. See

for some advice on making your questions clearer.

On Tue, Apr 24, 2012 at 9:04 AM, Hoang Dinh Quoc <>

> I am looking for z transformation and mibeta command is supposed to create
> it but when I run this command it always reports no imputations.

Nick Cox

> If you have no missing values, you do not need to impute and indeed
> have no scope to impute what is not missing. In what sense is this a
> problem? It is simple good news.
> On Tue, Apr 24, 2012 at 8:29 AM, Hoang Dinh Quoc <>

>> It does not work with other mi estimates such as mi estimate: reg y x1 x2
>> x3... and it reports the same 'no imputations'.
>> I have no missing values in my dataset. Can this be the problem?

Richard Williams

>> At 11:36 PM 4/23/2012, Hoang Dinh Quoc wrote:

>>>When I used the command 'mibeta' in Stata for z transformation and I got
>>>message stating 'no imputations'. Could anyone please tell me this
> problem?
>>>I converted my data into flong style (the command mi des tells 'Style:

>> My first guess would be that there is some sort of problem with your
>> imputations, but without seeing more of your code or output it is
>> impossible to tell. Do other mi estimate commands work, e.g. can you
>> do something like
>> mi estimate: reg y x1 x2 x3
>> without any problems?
*   For searches and help try:

*   For searches and help try:

© Copyright 1996–2018 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   Site index