diff options
Diffstat (limited to 'trunk')
| -rw-r--r-- | trunk/chemCal/DESCRIPTION | 2 | ||||
| -rw-r--r-- | trunk/chemCal/man/calplot.lm.Rd | 9 |
2 files changed, 9 insertions, 2 deletions
diff --git a/trunk/chemCal/DESCRIPTION b/trunk/chemCal/DESCRIPTION index de01f2a..6ea7b56 100644 --- a/trunk/chemCal/DESCRIPTION +++ b/trunk/chemCal/DESCRIPTION @@ -1,6 +1,6 @@ Package: chemCal Version: 0.2-01 -Date: 2007-10-01 +Date: 2010-09-12 Title: Calibration functions for analytical chemistry Author: Johannes Ranke <jranke@uni-bremen.de> Maintainer: Johannes Ranke <jranke@uni-bremen.de> diff --git a/trunk/chemCal/man/calplot.lm.Rd b/trunk/chemCal/man/calplot.lm.Rd index 6f6d584..b60a032 100644 --- a/trunk/chemCal/man/calplot.lm.Rd +++ b/trunk/chemCal/man/calplot.lm.Rd @@ -30,7 +30,9 @@ The label of the y axis. } \item{alpha}{ - The error tolerance level for the confidence and prediction bands. + The error tolerance level for the confidence and prediction bands. Note that this + includes both tails of the Gaussian distribution, unlike the alpha and beta parameters + used in \code{\link{lod}} (see note below). } \item{varfunc}{ The variance function for generating the weights in the model. @@ -48,6 +50,11 @@ using weights e.g. from a variance function are currently not supported by the internally used function \code{\link{predict.lm}}, therefore, \code{calplot} does not draw prediction bands for such models. + + It is possible to compare the \code{\link{calplot}} prediction bands with the + \code{\link{lod}} values if the \code{lod()} alpha and beta parameters are + half the value of the \code{calplot()} alpha parameter. + } \examples{ data(massart97ex3) |