R-universe search: topic:spectra

Showing 7 of total 7 results (show query)

yixuan

RSpectra:Solvers for Large-Scale Eigenvalue and SVD Problems

R interface to the 'Spectra' library <https://spectralib.org/> for large-scale eigenvalue and SVD problems. It is typically used to compute a few eigenvalues/vectors of an n by n matrix, e.g., the k largest eigenvalues, which is usually more efficient than eigen() if k << n. This package provides the 'eigs()' function that does the similar job as in 'Matlab', 'Octave', 'Python SciPy' and 'Julia'. It also provides the 'svds()' function to calculate the largest k singular values and corresponding singular vectors of a real matrix. The matrix to be computed on can be dense, sparse, or in the form of an operator defined by the user.

Maintained by Yixuan Qiu. Last updated 8 months ago.

eigenvalues spectra svd openblas cpp

81 stars 12.40 score 394 scripts 433 dependents

aphalo

photobiology:Photobiological Calculations

Definitions of classes, methods, operators and functions for use in photobiology and radiation meteorology and climatology. Calculation of effective (weighted) and not-weighted irradiances/doses, fluence rates, transmittance, reflectance, absorptance, absorbance and diverse ratios and other derived quantities from spectral data. Local maxima and minima: peaks, valleys and spikes. Conversion between energy-and photon-based units. Wavelength interpolation. Astronomical calculations related solar angles and day length. Colours and vision. This package is part of the 'r4photobiology' suite, Aphalo, P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

Maintained by Pedro J. Aphalo. Last updated 15 days ago.

light photobiology quantification r4photobiology-suite radiation spectra sun-position

4 stars 9.35 score 604 scripts 12 dependents

aphalo

ggspectra:Extensions to 'ggplot2' for Radiation Spectra

Additional annotations, stats, geoms and scales for plotting "light" spectra with 'ggplot2', together with specializations of ggplot() and autoplot() methods for spectral data and waveband definitions stored in objects of classes defined in package 'photobiology'. Part of the 'r4photobiology' suite, Aphalo P. J. (2015) <doi:10.19232/uv4pb.2015.1.14>.

Maintained by Pedro J. Aphalo. Last updated 9 hours ago.

dataviz ggplot2-autoplot ggplot2-enhancementes ggplot2-geoms ggplot2-scales ggplot2-stats light r4photobiology-suite radiation spectra

5 stars 8.15 score 390 scripts 1 dependents

bioc

MsBackendMassbank:Mass Spectrometry Data Backend for MassBank record Files

Mass spectrometry (MS) data backend supporting import and export of MS/MS library spectra from MassBank record files. Different backends are available that allow handling of data in plain MassBank text file format or allow also to interact directly with MassBank SQL databases. Objects from this package are supposed to be used with the Spectra Bioconductor package. This package thus adds MassBank support to the Spectra package.

Maintained by RforMassSpectrometry Package Maintainer. Last updated 1 months ago.

infrastructure massspectrometry metabolomics dataimport massbank spectra

3 stars 5.81 score 27 scripts

aphalo

ooacquire:Acquire Data from OO Spectrometers

Functions to acquire data directly from Ocean Optics spectrometers, and functions to read similar data from files. Functions to convert raw-counts into counts-per-second and physical quantities. Data are saved in objects of classes defined in package 'photobiology'. The instrument settings, instrument description, date-time of acquisition and optionally goecode are stored as attributes.

Maintained by Pedro J. Aphalo. Last updated 3 months ago.

data-acquisition data-import r4photobiology spectra cpp

1 stars 5.17 score 93 scripts

adafede

CentroidR:CentroidR

CentroidR provides the infrastructure to centroid profile spectra.

Maintained by Adriano Rutz. Last updated 2 hours ago.

centroiding spectra

2.60 score

rformassspectrometry

SpectraVis:Visualising and Exploring Spectra Data

This package defines a set of helper function to visualise and explore mass spectrometry data stored as Spectra objects.

Maintained by Laurent Gatto. Last updated 3 years ago.

proteomics massspectrometry metabolomics visualization bioconductor mass-spectrometry spectra visualisation

4 stars 2.30 score 1 scripts