https://communities.sas.com/t5/Mathematical-Optimization/Estimation-by-OLS/m-p/41434#M346 Hello,<BR /> I'm new user.<BR /> I have a function with 4 coefficients, which I want to estimate with OLS:<BR /> <BR /> I have the explenatory variable R(m) , and the time series (m=1,2….12)<BR /> <BR /> I want to estimate the equation by OLS.<BR /> The equiation that I want to measure is:<BR /> R(m)=b(0)+b(1)*((1-exp(-m/r))/(m/r))+b(2)*(((1-exp(-m/r))/(m/r))-exp(-m/r))<BR /> The coefficients are: b(0), b(1), b(2), r.<BR /> the R(m) is the monthly yield.<BR /> <BR /> Thanks <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span> Sun, 24 Aug 2008 16:16:48 GMT yossi_shvimer_gmail_com 2008-08-24T16:16:48Z https://communities.sas.com/t5/Mathematical-Optimization/Estimation-by-OLS/m-p/41434#M346 Hello,<BR /> I'm new user.<BR /> I have a function with 4 coefficients, which I want to estimate with OLS:<BR /> <BR /> I have the explenatory variable R(m) , and the time series (m=1,2….12)<BR /> <BR /> I want to estimate the equation by OLS.<BR /> The equiation that I want to measure is:<BR /> R(m)=b(0)+b(1)*((1-exp(-m/r))/(m/r))+b(2)*(((1-exp(-m/r))/(m/r))-exp(-m/r))<BR /> The coefficients are: b(0), b(1), b(2), r.<BR /> the R(m) is the monthly yield.<BR /> <BR /> Thanks <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span> Sun, 24 Aug 2008 16:16:48 GMT https://communities.sas.com/t5/Mathematical-Optimization/Estimation-by-OLS/m-p/41434#M346 yossi_shvimer_gmail_com 2008-08-24T16:16:48Z