xrd.find.Peak: Finds Peak Position from Gaussian

In thomasgredig/rigakuXRD: X-Ray Diffraction Data Analysis Package for Rigaku Data Sets

Finds Peak Position from Gaussian

Description

Fits a Gaussian form to a peak

Usage

xrd.find.Peak(
  TwoTheta,
  Intensity,
  peakPos = NA,
  Try.Sigma = c(0.1, 0.4, 0.2, 0.15),
  thetaDelta = 5,
  verbose = FALSE
)

Arguments

TwoTheta	angle
Intensity	intensity signal
peakPos	approximate angle of peak position
Try.Sigma	vector with peak widths used to start fitting
thetaDelta	width of angle to search peak
verbose	logical, if TRUE provides extra information

Value

fit peak position

Examples

filename = xrd.getSampleFiles(fileExt='asc')[1]
d = xrd.read.ASC(filename)
peak.pos = xrd.find.Peak(d$theta, d$I, 38.2)
plot(d$theta,d$I,log='y',col='red')
abline(v=peak.pos,col='blue')

thomasgredig/rigakuXRD documentation built on Feb. 3, 2024, 10:49 p.m.