From 965af33bfc386b0c96a50c85fbddf98211e266c4 Mon Sep 17 00:00:00 2001 From: ranke Date: Tue, 15 Feb 2005 19:15:54 +0000 Subject: Cleaned up version, only containing very basic stuff. git-svn-id: http://kriemhild.uft.uni-bremen.de/svn/chemCal@2 5fad18fb-23f0-0310-ab10-e59a3bee62b4 --- man/calpredict.Rd | 64 ------------------------------------------------------- 1 file changed, 64 deletions(-) delete mode 100644 man/calpredict.Rd (limited to 'man/calpredict.Rd') diff --git a/man/calpredict.Rd b/man/calpredict.Rd deleted file mode 100644 index a91d018..0000000 --- a/man/calpredict.Rd +++ /dev/null @@ -1,64 +0,0 @@ -\name{calpredict} -\alias{calpredict} -\title{Estimate measurement results including confidence intervals} -\description{ - This function generates estimates for x values from y values, including - a confidence interval for the x values. The formulas in this function used - for prediction of concentrations from (replicate) measurements are taken from - the "Handbook of Chemometrics and Qualimetrics Part A" by D. L. Massart, - Vandeginste, B. G. M., Buydens, L. M. C., De Jong, S., Lewi, P. J. and - Smeyers-Verbeke, J, Elsevier, Amsterdam, 1997 and from the EURACHEM/CITAC - report on "Quantifying uncertainty in analytical measurement", 2000, - pp. 111f. -} -\usage{ - calpredict(yobs,xi,yi,xunit="",level=0.95,intercept=FALSE,syobs=FALSE) -} -\arguments{ - \item{yobs}{ - A numeric vector containing the observed data. - } - \item{xi}{ - A vector of x values of the calibration. - } - \item{yi}{ - A vector of y values of the calibration. - } - \item{xunit}{ - The unit of the given values on the x axis as a character string. - } - \item{level}{ - The desired confidence level for the confidence interval of the - estimates. Defaults to 0.95. - } - \item{intercept}{ - Logical value determining if an intercept is to be fitted or not. - Default is FALSE. - } - \item{syobs}{ - If TRUE, a standard deviation for the given y values is - calculated, and the resulting confidence interval will - include this variability (not validated yet). If FALSE (default), this - standard deviation is not included in the - confidence interval. If a numeric value is given, - it is used for the standard deviation of "real samples", - in addition to the standard deviation of the y values - in the calibration (also not validated yet). - } -} -\value{ - A list containing the estimate, its standard deviation and its - confidence interval. -} -\examples{ -data(pahCalibration) -attach(pahCalibration) -y <- c(51.2,51.4,51.1,51.8) -estimate <- calpredict(y,conc,acenaphthene,xunit="mg/L") -} -\author{ - Johannes Ranke - \email{jranke@uni-bremen.de} - \url{http://www.uft.uni-bremen.de/chemie/ranke} -} -\keyword{regression} -- cgit v1.2.1