1 files changed, 0 insertions, 65 deletions
diff --git a/R/twa.R b/R/twa.R
deleted file mode 100644
index e8894b0b..00000000
--- a/R/twa.R
+++ /dev/null
@@ -1,65 +0,0 @@
-# Copyright (C) 2016 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/>
-
-twa <- function(fit, windows) {
-  parms.all <- c(fit$bparms.optim, fit$bparms.fixed)
-  obs_vars <- fit$obs_vars
-  if (length(obs_vars) > 1) {
-    warning("Calculation of maximum time weighted average concentrations is",
-            "currently only implemented for the parent compound using",
-            "analytical solutions")
-  }
-  obs_var <- obs_vars[1]
-  spec = fit$mkinmod$spec
-  type = spec[[1]]$type
-
-  M0 <- parms.all[paste0(obs_var, "_0")]
-
-  if (type == "SFO") {
-    k_name <- paste0("k_", obs_var)
-    if (fit$mkinmod$use_of_ff == "min") {
-      k_name <- paste0(k_name, "_sink")
-    }
-    k <- parms.all[k_name]
-    twafunc <- function(t) {
-      M0 * (1 - exp(- k * t)) / (k * t)
-    }
-  }
-  if (type == "FOMC") {
-    alpha <- parms.all["alpha"]
-    beta <- parms.all["beta"]
-    twafunc <- function(t) {
-      M0 * (beta)/(t * (1 - alpha)) * ((t/beta + 1)^(1 - alpha) - 1)
-    }
-  }
-  if (type == "DFOP") {
-    k1 <- parms.all["k1"]
-    k2 <- parms.all["k2"]
-    g <- parms.all["g"]
-    twafunc <- function(t) {
-      M0/t * ((g/k1) * (1 - exp(- k1 * t)) + ((1 - g)/k2) * (1 - exp(- k2 * t)))
-    }
-  }
-  if (type %in% c("HS", "IORE", "SFORB")) {
-    stop("Calculation of maximum time weighted average concentrations is currently ",
-         "not implemented for the ", type, " model.")
-  }
-  res <- twafunc(windows)
-  names(res) <- windows
-  return(res)
-}