I solved the problem. Thank you very much for all your advice! ... View more

My log says as follows.   WARNING: Output 'ParameterEstimates' was not created. Make sure that the output object name, label, or path is spelled correctly. Also, verify that the appropriate procedure options are used to produce the requested output object. For example, verify that the NOPRINT option is not used. WARNING: Output 'FitStatistics' was not created. Make sure that the output object name, label, or path is spelled correctly. Also, verify that the appropriate procedure options are used to produce the requested output object. For example, verify that the NOPRINT option is not used. WARNING: Output 'DataSummary' was not created. Make sure that the output object name, label, or path is spelled correctly. Also, verify that the appropriate procedure options are used to produce the requested output object. For example, verify that the NOPRINT option is not used. ... View more

Thank you veru much for your advice.   In addition, I would like to have results by country, especially estimates, standard errors, t-value and adjusted rsquares in one table and tried the codes as follows. But it did not work. What would be wrong with my codes?   proc reg data= xx; MODEL Price = gain cashflow CPI; by country; ods select DataSummary FitStatistics; ods output ParameterEstimates = tt; run; proc print data=tt; noobs; var Parameter Estimate Standard Error tValue; run; ... View more

Thank you for your response. It works in terms of running regressions for 50 different countries at one time. Would there be any way to have coefficient estimates, standard errors, t-value, adjusted R square and N by country in one table? Thank you again! ##- Please type your reply above this line. Simple formatting, no attachments. -## ... View more