Pairwise Spectral Data Frame from Sample

Raw spectral data in binary dataframe. The first column contains the m/z data for the spectrum, while the second contains the intensity data. Spectrum is obtained from a biological sample, prior to chemical intervention.

data("Before2")

Format

A data frame with 213593 observations on the following 2 variables.

mass

A numeric vector; the m/z data for the spectrum.

Intensity

A numeric vector; the intensity data for the spectrum.

Source

Yeh, K., Stock N. L., Burr, W. & Stotesbury, T. Preliminary analysis of latent fingerprints recovered from underneath bloodstains using Matrix-Assisted Laser Desportion/Ionization Fourier-Transform Ion Cyclotron Resonance Mass Spectrometry Imaging (MALDI FT-ICR MSI). Forensic Chemistry (2020). In press.

References

https://github.com/wesleyburr/subMaldi

Examples

data(Before2)