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...e 2: In model.matrix.default(mt, mf, contrasts) : la variable 'AXANY' est convertie en facteur 3: In model.matrix.default(mt, mf, contrasts) : la variable 'AXAP' est convertie en facteur 4: In lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : les arguments surnum?raires time sont ignor?s. Thanks for your help! -- View this message in context: http://n4.nabble.com/Error-lm-fit-pairs-cointegrated-trading-tp1693370p1693370.html Sent from the R help mailing list archive at Nabble.com.

Hi there everyone, I have the following model (this is naturally a simplified version just for showing my problem, in case you're wondering this is a translog cost function with the associated cost share equations): C ~ á + â1 log X + â2 log Y + ã1 log Z + ã2 log XX C1 ~ â1 + â2 log YY + ã1 log ZZ Then I have some restrictions on the coefficients, namely that the sum of â equal 1 and the

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