X and y must have the same number of elements, and NA values must be removed (?na.omit) --------------------------------------------------------------------------- Jeff Newmiller The ..... ..... Go Live... DCN:<jdnew...@dcn.davis.ca.us> Basics: ##.#. ##.#. Live Go... Live: OO#.. Dead: OO#.. Playing Research Engineer (Solar/Batteries O.O#. #.O#. with /Software/Embedded Controllers) .OO#. .OO#. rocks...1k --------------------------------------------------------------------------- Sent from my phone. Please excuse my brevity.
Julie <julie.novak...@gmail.com> wrote: Hello, I am trying to get a linear model of y ~ log(x). *> lm (y~log(x))* However, I always get an error report: /Error in model.frame.default(formula = y ~ log(x), drop.unused.levels = TRUE) : variable lengths differ (found for 'log(x)')/ *Here was my y:* > y [1] 0.4500000 0.0500000 0.5000000 0.4000000 0.0000000 0.5000000 0.4000000 [8] 0.0500000 0.4000000 0.2500000 0.3500000 0.5000000 0.0500000 0.4000000 [15] 0.5000000 0.5000000 0.5000000 0.2500000 0.8500000 0.5000000 0.5000000 [22] 0.5000000 0.2500000 0.4000000 0.2500000 0.2500000 0.4000000 0.2500000 [29] 0.5000000 0.1500000 0.2500000 0.1000000 0.2500000 0.2500000 0.0150000 [36] 0.4000000 0.5000000 0.2000000 0.2500000 0.0000500 0.5000000 0.0050000 [43] 0.5000000 0.2500000 0.2500000 0.4000000 0.5000000 0.4000000 0.5000000 [50] 0.5000000 0.5000000 0.5000000 0.7142857 0.5000000 0.0050000 0.3500000 [57] 0.5000000 0.3500000 0.0000000 0.5000000 0.2500000 0.2500000 1.0000000 [64] 0.2500000 0.1000000 0.2500000 0.5000000 0.2500000 0.5500000 NA [71] 0.2500000 0.4000000 0.3500000 0.3500000 0.2500000 0.0000000 0.8888889 [78] 0.5000000 0.2500000 0.5000000 0.5000000 0.5000000 0.2500000 0.2000000 [85] 0.4000000 0.0000000 0.3500000 0.0250000 0.4000000 0.5000000 0.3500000 [92] 0.2500000 0.3000000 0.2500000 0.0050000 0.5000000 0.4000000 0.0500000 [99] 0.5000000 0.4000000 0.0050000 0.4500000 0.4000000 0.3500000 0.5000000 [106] 0.0050000 0.3000000 0.0500000 0.2500000 0.3500000 0.3500000 0.7500000 [113] 0.5000000 0.3750000 0.4500000 0.1000000 0.4000000 0.2500000 0.2500000 [120] 0.2500000 0.2500000 0.5000000 NA NA NA NA [127] NA NA NA NA NA NA NA [134] NA NA NA NA NA NA NA [141] NA NA NA NA NA NA NA [148] NA NA NA NA NA NA NA [155] NA NA NA NA NA NA NA [162] NA NA NA NA NA NA NA [169] NA NA NA NA NA NA NA [176] NA NA NA NA NA NA NA [183] NA NA NA NA 0.2000000 0.0005000 0.5000000 [190] 0.5000000 0.0250000 0.2500000 0.2500000 0.0100000 0.3500000 0.1500000 [197] 0.3000000 0.5000000 0.0005000 0.3000000 0.4000000 0.2500000 0.4000000 [204] 0.2500000 0.8500000 0.2500000 0.3750000 0.2500000 0.1000000 0.3500000 [211] 0.0500000 0.2500000 0.2000000 5000.0000000 0.5000000 NA NA [218] NA NA NA NA NA NA NA [225] NA NA NA NA NA NA NA [232] NA NA NA NA NA NA NA [239] NA NA NA NA NA NA NA [246] NA NA NA NA NA NA NA [253] NA NA NA NA NA NA NA [260] NA NA NA NA NA NA NA [267] NA NA NA NA NA NA NA [274] NA NA NA NA NA NA 0.0500000 [281] 0.0000500 0.5000000 0.6000000 0.0050000 0.2500000 0.2500000 0.0025000 [288] 0.4000000 0.1000000 0.2500000 0.5000000 0.0010000 0.2500000 0.4000000 [295] 0.2500000 0.4500000 0.0500000 0.6000000 0.2500000 0.4000000 0.0000500 [302] 0.0500000 0.3500000 0.0500000 0.1500000 0.0500000 NA NA [309] NA NA NA NA NA NA NA [316] NA NA NA NA NA NA NA [323] NA NA NA NA NA NA NA [330] NA NA NA NA NA NA NA [337] NA NA NA NA NA NA NA [344] NA NA NA NA NA NA NA [351] NA NA NA NA NA NA NA [358] NA NA NA NA NA NA NA [365] NA NA NA NA NA NA NA [372] NA *Here was my x:* > x [1] 20 200 2000 20000 I deleted [372] from y, because I thought it could help, the length of y would be the same. It did not change the error report. I did as.data.frame with both y and x and this did not help either. I am not sure what I should do now. Thank you for help! -- View this message in context: http://r.789695.n4.nabble.com/Lm-function-Error-in-model-frame-default-tp3933466p3933466.html Sent from the R help mailing list archive at Nabble.com. _____________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
