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# Copyright (C) 2008-2014 Johannes Ranke
# Contact: jranke@uni-bremen.de
# This file is part of the R package mkin
# mkin is free software: you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation, either version 3 of the License, or (at your option) any later
# version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
# You should have received a copy of the GNU General Public License along with
# this program. If not, see <http://www.gnu.org/licenses/>
if(getRversion() >= '2.15.1') utils::globalVariables(c("variable", "residual"))
mkinresplot <- function (object,
obs_vars = names(object$mkinmod$map),
xlim = c(0, 1.1 * max(object$data$time)),
xlab = "Time", ylab = "Residual",
maxabs = "auto", legend= TRUE, lpos = "topright", ...)
{
obs_vars_all <- as.character(unique(object$data$variable))
if (length(obs_vars) > 0){
obs_vars <- intersect(obs_vars_all, obs_vars)
} else obs_vars <- obs_vars_all
residuals <- subset(object$data, variable %in% obs_vars, residual)
if (maxabs == "auto") maxabs = max(abs(residuals), na.rm = TRUE)
col_obs <- pch_obs <- 1:length(obs_vars)
names(col_obs) <- names(pch_obs) <- obs_vars
plot(0, xlab = xlab, ylab = ylab,
xlim = xlim,
ylim = c(-1.2 * maxabs, 1.2 * maxabs), ...)
for(obs_var in obs_vars){
residuals_plot <- subset(object$data, variable == obs_var, c("time", "residual"))
points(residuals_plot, pch = pch_obs[obs_var], col = col_obs[obs_var])
}
abline(h = 0, lty = 2)
if (legend == TRUE) {
legend(lpos, inset = c(0.05, 0.05), legend = obs_vars,
col = col_obs[obs_vars], pch = pch_obs[obs_vars])
}
}
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