Package: visa 0.1.0.9000
visa: Vegetation Imaging Spectroscopy Analyzer
Provides easy-to-use tools for data analysis and visualization for hyperspectral remote sensing (also known as imaging spectroscopy), with a particular focus on vegetation hyperspectral data analysis. It consists of a set of functions, ranging from the organization of hyperspectral data in the proper data structure for spectral feature selection, calculation of vegetation index, multivariate analysis, as well as to the visualization of spectra and results of analysis in the 'ggplot2' style.
Authors:
visa_0.1.0.9000.tar.gz
visa_0.1.0.9000.zip(r-4.5)visa_0.1.0.9000.zip(r-4.4)visa_0.1.0.9000.zip(r-4.3)
visa_0.1.0.9000.tgz(r-4.4-any)visa_0.1.0.9000.tgz(r-4.3-any)
visa_0.1.0.9000.tar.gz(r-4.5-noble)visa_0.1.0.9000.tar.gz(r-4.4-noble)
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visa.pdf |visa.html✨
visa/json (API)
NEWS
| # Install 'visa' in R: |
| install.packages('visa', repos = c('https://kang-yu.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/kang-yu/visa/issues
Last updated 4 years agofrom:890afc6d27. Checks:3 OK, 4 NOTE. Indexed: yes.
| Target | Result | Latest binary |
|---|---|---|
| Doc / Vignettes | OK | Jan 20 2025 |
| R-4.5-win | NOTE | Jan 20 2025 |
| R-4.5-linux | NOTE | Jan 20 2025 |
| R-4.4-win | NOTE | Jan 20 2025 |
| R-4.4-mac | NOTE | Jan 20 2025 |
| R-4.3-win | OK | Jan 20 2025 |
| R-4.3-mac | OK | Jan 20 2025 |
Exports:as.spectraas.spectra.data.frameas.spectra.databaseas.spectra.matrixcm.nsrcm.srggplot.cmggplot.lmfitggplot.spectralm.nsrlm.srndvi2nsrspectrasrwavelength
Dependencies:bootclicodetoolscolorspaceconfintrcpp11dplyrfansifarvergenericsggplot2ggpmiscggppgluegridExtragtableisobandlabelinglatticelifecyclelmodel2lubridatemagrittrMASSMatrixMatrixModelsmgcvmultcompmultcompViewmunsellmvtnormnlmepillarpkgconfigplyrpolynomquantregR6RColorBrewerRcppreshape2rlangsandwichscalesSparseMsplus2RstringistringrsurvivalTH.datatibbletidyselecttimechangeutf8vctrsviridisLitewithrxtszoo
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| Create a SpectraDataFrame | as.specdf as.spectra.data.frame |
| Selecting the best 2-Band combinations for Normalized Simple Ratio (NSR) | cm.nsr |
| Selecting the best 2-Band combinations for Simple Ratio (SR) | cm.sr |
| Create a new ggplot plot with a geom_line() layer from spectra data | ggplot ggplot.cm ggplot.spectra |
| Plot functions | ggplot-method ggplot.lmfit |
| Calculate and plot a 2-band NDVI. | ndvi2 |
| Example data in the Spectra/SpectraDatabase format. | Data-SpectraDatabase,Data-Spectra NSpec.DB |
| Example data in the SpectraDataFrame format | Data-SpectraDataFrame NSpec.DF |
| Access the spectra data of 'SpectraDatabase'. | spectra spectra,data.frame,ANY-method spectra,data.frame-method spectra,matrix,ANY-method spectra,matrix-method spectra,Spectra,ANY-method spectra,Spectra-method |
| Create a Spectra or SpectraDatabase | as.spectra as.spectra.database Spectra Spectra,Spectra-class Spectra-class |
| Class 'SpectraDatabase' | SpectraDatabase-class SpectraDatabase-class,spectra.database |
| Class 'SpectraDataFrame' | SpectraDataFrame,spectra.data.frame SpectraDataFrame-class |
| Class 'SpectraMatrix' | as.spectra.matrix SpectraMatrix-class SpectraMaxtrix-class,spectra.maxtrix |
| Calculate Simple Ratio (SR). | lm.nsr lm.sr nsr sr |
| Access the wavelength of Spectra | waveband wavelength wavelength,data.frame,ANY-method wavelength,data.frame-method wavelength,matrix,ANY-method wavelength,matrix-method wavelength,Spectra,ANY-method wavelength,Spectra-method |
