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Dear List Members,I am trying to set up a large system of equations and I am trying to find a simple way to set up the list command under the package system fit. Here is the example from system fit and what I am trying to do: EQ1 <- Y1 ~ X1 + X2 + X4EQ2 <- Y2 ~ X2 + X3EQ3 <- Y3 ~ X2 + X3 + X4EQ4 <- Y4 ~ X1 + X3 + X4eqSystem <-list(form1 = EQ1, form2 = EQ2, form3 = EQ3, form4 = EQ4) #atempt 1 to "automate" above:eqSystem1 <-paste(paste("form", 1:4, sep=""), paste("EQ", 1:4,sep=""),sep="=") #attem...

Is there a way to apply paste to?list(form1 = EQ1, form2 = EQ2, form3 = EQ3, form4 = EQ4)?such that I don't have to write form1=EQ1 for all my models?(I might have a list of 20 or more)? I also need the EQs to read the formulas associated with them. For example, below, I was able to automate the name assignment but I could not figure out how to?to set up the list usin...

...<-c(paste("Y", 1:4, sep=""), paste("X", 1:10, sep="")) ## assign variables' names library(systemfit) ## EQUATIONS: EQ1 <- Y1 ~ X1 + X2 + X4 + X7 + X10 ## equation 1 formula EQ2 <- Y2 ~ X2 + X3 + X5 + X8 + X10 ## equation 2 formula EQ3 <- Y3 ~ X5 + X6 + X7 + X9 ## equation 3 formula EQ4 <- Y4 ~ X1 + X3 + X4 + X6 + X9 ## equation 4 formula eqSystem <-list(form1 = EQ1, form2 = EQ2, form3 = EQ3, form4 = EQ4) fitSUR <- systemfit(eqSystem, method ="SUR", data=YX) ## How do I out put all the R...

Hello to everyone, I have 2 problems and would be very pleased if anyone can help me: 1) When I use the package "systemfit" for SUR regressions, I get two different variance-covariance matrices when I firstly do the SUR regression ("The covariance matrix of the residuals used for estimation") and secondly do the OLS regressions. In the manual for "systemfit" on page

...etat_hexa->axe1, NA, 1 etat_hexa->axe2, et2, NA etat_hexa->axe3, et3, NA socioBV->sold_mig, BV1, NA socioBV->sold_nat, BV2, NA socioBV->TXEMPLOI, BV3, NA socioBV->ORIECO, BV4, NA socioBV->tps_dom_emp, NA, 1 eqBV->eq_CONC, NA, 1 eqBV->eq_sante, eq2, NA eqBV->eq_edu, eq3, NA socio_com->pourcactif , NA, 1 socio_com->tx_chomage, com2, NA socio_com->pourcagric, com3, NA socio_com->pourc_jeunes, com4, NA socio_com->pop99, com5, NA socio_com->rev_imp_foyer, com7, NA access_hexa->route1_pond, NA, 1 access_hexa->route2_pond, acc2, NA hydro->ind_...

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