Functions to Compute Measures of Central Tendency and Spread. seX!
Bin or Bucket a Spectra Object
Plot PCA Scores of a Spectra Object
mclust Analysis of a Spectra Object PCA Results
Change the Color Scheme of a Spectra Object
Plot HCA Results of a Spectra Object
Merge Files in a Directory into a Spectra Object
Create Ellipsoid
Plot Spectra Object
Summarize the Group Parameters of a Spectra Object
Verify the Integrity of a Spectra Object
Compute Confidence Ellipses
Find the TMS/TSP Peak in an NMR Spectrum.
Cross-Validation of Classical PCA Results for a Spectra Object
Plot aovPCA Loadings of a Spectra Object
Determine if a Number is a Whole Number
Classical PCA of Spectra Objects
s-Plot of Spectra Data Post PCA
IR and NMR Spectra of Serenoa repens (Saw Palmetto) Oil Extracts and Reference Oils
Read and process a JCAMP-DX file.
Exploratory Chemometrics for Spectroscopy
Display the spectra in a Spectra object one at a time
Interactive 3D Score Plot of a Spectra Object
Assign Group Membership and Colors for a Spectra Object
Modified Version of coordProj from mclust
Bin or Bucket Data
Colors and Symbols in ChemoSpec and Spectra Objects
Plot PCA Loadings for a Spectra Object
Remove Frequencies from a Spectra Object
HCA on PCA scores from a Spectra Object
Plot Dendrogram for Spectra Object
Check for Missing Values (Gaps)
Summarize a Spectra Object
mclust Analysis of a Spectra Object in 3D
Label Extreme Values in a 2D Data Set
Plot Measures of Central Tendency and Spread for a Spectra Object
Create New Groups from an Existing Spectra Object
Decorate PCA Score Plot of a Spectra Object
Create a Seriated Heat Map Comparing Samples and Spectral Data for a Spectra Object
Read and process a Bruker NMR spectrum saved using Topspin
ANOVA-PCA Analysis of Spectra Data
Plot PCA Loadings from a Spectra object Against Each Other
3D PCA Score Plot for a Spectra Object
mclust Analysis in 3D
Identify Extreme Values in 3D
Outlier Diagnostic Plots for PCA of a Spectra Object
Shrink the Leaves of a Dendrogram
Compute Distance Between Rows of a Matrix
Scree Plots of PCA Results for a Spectra Object
Average levels of a factor in a data matrix
Spectra Objects
IR Spectra of Plant Cuticles by Genotype and Treatment
Conduct MANOVA using PCA Scores and Factors in a Spectra Object
Normalize a Spectra Object
Conduct PCA and plot aovPCA Scores of a Spectra Object
Normalize a Vector to range -1 to +1
Conversion Between PCA Classes
Carry out baseline correction on a Spectra object
Remove Samples or Groups from a Spectra Object
Robust PCA of a Spectra Object
Color the Leaves of a Dendrogram
Calculate the signal-to-noise ratio of a peak in a spectrum.