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JanaJarecki / cognitivemodels

Cognitivemodels is an open-source R library to create, fit, test, and compare computational cognitive models based on machine-learning principles.
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fixing one sum-constrained parameter does not work #79

Open JanaJarecki opened 3 years ago

JanaJarecki commented 3 years ago 
data(nosofsky1989)
d <- nosofsky1989
fix <- c(q=2, r=2, angle=0.1)
fitd <- d[d$condition == "size",]
M <- gcm(formula = pobs ~ angle + size, criterion = ~ true_cat, data = d[d$condition == condition & !is.na(d$true_cat), ], 
         fix = fix, options = list(fit_data = fitd, fit_args = list(n = fitd$N), fit=T), discount = 0, choicerule = "none")
M$par["angle"]

is 0.5 rather than 0.1