R/writeEst.R

In TIMP: Fitting Separable Nonlinear Models in Spectroscopy and Microscopy

"writeEst" <- function(multimodel, multitheta, plotoptions) {
  if (length(plotoptions@makeps) != 0) {
    filename <- paste(plotoptions@makeps, "_paramEst.txt", sep = "")
  } else {
    filename <- "currParamEst"
  }
  fileparam <- file(filename, "w")

  cat(plotoptions@title, "\n\n", file = fileparam)

  onls <- multimodel@fit@nlsres$onls
  if (plotoptions@algorithm == "nls") {
    cat("Sum square error:", onls$m$deviance(), "\n\n",
      file = fileparam
    )
  }
  if (plotoptions@algorithm == "nls.lm") {
    cat("Sum square error:", onls$dev, "\n\n",
      file = fileparam
    )
  }
  if (plotoptions@algorithm == "optim") {
    cat("Error:", onls$value, "\n\n",
      file = fileparam
    )
  }
  if (plotoptions@sumnls && (plotoptions@algorithm == "nls.lm" ||
    plotoptions@algorithm == "nls")) {
    s <- summary(onls, multimodel)
    cat("Residual standard error:", s$sigma, "on", s$df[2], "degrees
    of freedom\n\n\n", file = fileparam)
  }
  parEst(list(currModel = multimodel, currTheta = multitheta), file = fileparam)

  close(fileparam)
}