search for: ablat

...sed the length function on both my x and y co-ordinates and found no difference in lengths. If anyone could shed some light on this I'd really appreciate it. The code I used can be found below: > mixed<-read.delim("regressiontest.txt") > mixed study year ablat mosq1pos mosq1neg mosq2pos mosq2neg 1 Cano et al. 2006 2 42 237 148 629 2 Kerah - Hinzoumbe et al. 2009 10 103 7260 3 215 3 Konate et al. 1994 13 83 5714 48 3609 4 Mwanzia et al. 2011 4...

Hi I have tryed to do the meta-regression in metafor package, but I would like to get the standardized coefficients for each variable, however in command:   Ø  res<-rma.uni (yi, vi, method="REML", mods=~cota+DL+uso+gadiente+idade, data= turbidez)   I just have the coefficients no standardized (estimate) of the multiple regression. What I need to do? Thanks Fernanda Melo

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Brokers Move On ERMX! EntreMetrix Inc. (ERMX) $0.18 Heavy trading today as ERMX announced its launch of digital support tools for its portfolio companies. Brokers are getting ahead of this steady climb as they grab up large blocks of shares for there clients. Look at the numbers and get on ERMX Friday morning! KNEEguru: Are there any contraindications for the procedure? if the laws of physics

Dear R-experts! In a meta-analysis (metafor) I would like to assess the effect of two categorical covariates (A & B) whereas they both have 4 levels. Is my understanding correct that this would require to dummy-code (0,1) each level of each covariate (A & B)? However I am interested in the main-effects and the interaction of these two covariates and the dummy-coding would only allow to

...tematic", 1, 0) ### test the allocation factor (in the presence of the other moderators) ### note: "alternate" is the reference level of the allocation factor ### note: the intercept is the first coefficient, so btt=c(2,3) rma(yi, vi, mods=cbind(alloc.random, alloc.systematic, year, ablat), data=dat, method="REML", btt=c(2,3)) What I do not understand is the following:  How does R know which columns in my data.frame are related to the dummy encoded variables? It is clear that in the call of cbind I just do not use the reference variable as a parameter but I do not get it...

...n web services. I''m looking for a RESTful Camping tutorial to get started ... pointers appreciated. Some simple example applications: airfoil force calculator: feed it an airfoil geometry, an angle of attack, and a Mach number, and it returns the lift, drag, and pitching moment ablation: feed it surface temperature and thermal protection material properties, and it returns surface blowing rate and specie mass fractions. Thanks, -- Bil Kleb http://fun3d.larc.nasa.gov