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01-22-2015 12:09 PM

Hi, I would like to run regression on 25 stock portfolios, how can I use the %macro function?

My code for regression:

**proc** **reg** data=Reg.Reg_raw;

model exr11= mktexretm smb hml term default; **run**;

However,I need to repeatedly changing the dependent variable (*red one*--exr11) into (exr12,exr13,......,exr55),

can anyone help to point out what's wrong with my code? Thanks!

**%macro** (&** name**);

proc reg data=Reg.Reg_raw;

model (&name) = mktexretm smb hml term default;

run;

**%mend**;

%** exr11** %

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Solution

01-22-2015
12:41 PM

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Posted in reply to eiua123

01-22-2015 12:41 PM

%macro do_regression(dep);

proc reg data=Reg.Reg_raw;

model &dep = mktexretm smb hml term default;

run; quit;

%mend;

%do_regression(exr11)

%do_regression(exr12)

OR

%do_regression(exr11 exr12 exr13)

But there's really no reason to code a macro for this

proc reg data = whatever;

model exr11 exr12 exr13 ... = mktexretm smb hml term default;

run; quit;

--

Paige Miller

Paige Miller

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Solution

01-22-2015
12:41 PM

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Posted in reply to eiua123

01-22-2015 12:41 PM

%macro do_regression(dep);

proc reg data=Reg.Reg_raw;

model &dep = mktexretm smb hml term default;

run; quit;

%mend;

%do_regression(exr11)

%do_regression(exr12)

OR

%do_regression(exr11 exr12 exr13)

But there's really no reason to code a macro for this

proc reg data = whatever;

model exr11 exr12 exr13 ... = mktexretm smb hml term default;

run; quit;

--

Paige Miller

Paige Miller

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Posted in reply to PaigeMiller

01-22-2015 09:43 PM

Thanks for your help.

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Posted in reply to PaigeMiller

01-27-2015 10:40 AM

I still have some other questions in using SAS.

May I ask how to find out residual standard error of the regression model? As from the output of SAS like the first attached image, I cannot find the s(e) but I am curious if the root of mean square error would be the residual standard error?

Besides I have no idea what code should I input to SAS to show autocorrelation for lag till 12 period and correlation between variables, like the second attached image from Fama and French (1993) 's paper.

I will be grateful for any help you provide. Thanks^^

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Posted in reply to eiua123

01-27-2015 10:57 AM

The Root Mean Square Error is effectively the standard deviation of the residuals. Technically, there is a slight difference as the Root Mean Square error is more appropriat as it divides the Residual Sum of Squares by the error df, while the standard deviation would divide the residual sum of squares by n-1.

I'm not sure what you are showing me in table 2 but PROC REG does not perform autocorrelation without manipulation of the input variables. You might want to look into PROC ARIMA or PROC AUTOREG if you have SAS/ETS.

--

Paige Miller

Paige Miller