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st: Error code r504 when there is no missing data
From
Ricky Lim <[email protected]>
To
[email protected]
Subject
st: Error code r504 when there is no missing data
Date
Tue, 4 Mar 2014 21:03:12 +0800
Dear Statalisters,
I tried to conduct a data envelopment analysis using the STATA command
written by Yong-bae Ji and Choonjoo Lee but I kept getting error code
r(504) which says "Matrix has missing value"
I realise the error was due to two output variables (Let's call it
variable A and B).
The problem would only occur when I included both Variables A and B
together in the model.
If either of them is included, the analysis runs.
But if both of them are included, the analysis fails and I get the code r(504).
Would appreciate if any of you could give some advice on how to
overcome this problem.
Thank you very much in advanced!
Best regards,
Ricky
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