Hi Robert,
I've found that some of the ice errors are less than intuitive
since you only have 5 variables, try fitting the 5 individual
prediction equations to see if a more sensible error arises
cheers
Jon
--On 30 April 2007 16:43 -0400 ROBERT BOZICK <[email protected]> wrote:
I am having a problem getting the ice multiple imputation command to run.
I have used it many times and it has worked without a problem. Today is
a different story:
I am using the command structure:
ice x1 x2 x3 x4 x5 using "M:\statafiles\data\imputed.dta", seed(2007) m(5)
After a few minutes of "thinking" Stata provides the response:
r(2000).
I looked up the meaning of this error and it reads:
error . . . . . . . . . . . . . . . . . . . . . . . Return code 2000
no observations;
You have requested some statistical calculation and there are
no observations on which to perform it. Perhaps you specified
if exp or in range and inadvertently filtered all the data.
I am not sure exactly what that means with respect to my data file. The
file that I am using has valid values for the variables in the list
(x1...x5) and all the missing values are listed with a period "."
Does anyone have any idea why I am getting this message and what needs to
be done to rectify this?
Thanks,
Robert
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--------------------------------------------------
Dr Jon Heron
Statistics Team Leader
ALSPAC, Dept of Social Medicine
24 Tyndall Avenue
Bristol BS8 1TQ
Tel: 0117 3311616
Fax: 0117 3311704
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