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

st: fpower

From   "CHIDLOW Agnieszka" <>
To   <>
Subject   st: fpower
Date   Sat, 20 Jun 2009 21:36:38 +0100

Dear Statalisters,
Please forgive me if you find this request silly (or basic), but I have been having some nightmares to figure out how to use ex post "fpower" for anova.
I have read about the power analysis  (e.g. papers, and on, but it looks like I can't do the test because I don't seem to know how to calculate delta and/or means for my groups. Hence would really appreciate some help from you.
My anova results are: 
.anova nm year
                            Number of obs =      95     R-squared     =  0.0497
                            Root MSE      = .487822     Adj R-squared = -0.0387
                  Source |  Partial SS    df       MS           F     Prob > F
                   Model |  1.07136314     8  .133920392       0.56     0.8055
                    year |  1.07136314     8  .133920392       0.56     0.8055
                Residual |   20.465479    86  .237970686   
                   Total |  21.5368421    94  .229115342   
where: nm = 2 groups
       year = 8 groups
Many thanks in advance,

The information in this email is confidential and is intended solely for the addressee.  Access to this email by anyone else is unauthorised.  

If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, except for the purpose of delivery to the addressee, is prohibited and may be unlawful.  Kindly notify the sender and delete the message and any attachment from your computer.

*   For searches and help try:

© Copyright 1996–2022 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index