A data only package with spectral 'transmittance' data for frequently used filters and similar materials. Plastic sheets and films; optical glass and ordinary glass and some labware.
Package photobiologyFilters is a collection of spectral transmittance data for various filters that we use or have used in our lab, or that have been made available for inclussion in the package by manufacturers.
This package is part of a suite of R packages for photobiological calculations described at the r4photobiology web site.
Rebuild data objects, setting attribute "what.measured". Add data for MIDOPT filters, from Midwest Optical Systems, Inc. Add data for different types of window glasses, as used by CIE. Rename some filters, for clarity and consistency (NOT FULLY BACKWARDS COMPATIBLE). Add lists of names by type, colour and by material. Update documentation, expanding the "User Guide" and removing the "Data Catalogue". Build documentation web site with 'pkgdown'.
Rebuild data objects. Update documentation. Build documentation web site with 'staticdocs'.
Rebuild data objects. Only change is in dependencies and fixed a bug in the build.
Update for ggplot2 2.0.0, ggspectra 0.1.0, and photobiology 0.9.1. Only change is in dependencies.
Change how data are stored. Data are now in filter_mspct objects, in most cases each object contains data for filters from a single supplier.
Replace SCHOTT filter data with those supplied by SCHOTT. Now data for 67 filters are included and data on thickness and reflection multiplier are included for each filter type.
Add data for greenhouse films from XL Horticulture Ltd.
Simplify and improve all data building scripts.
Revise vignettes to use data in new format and to include new data added.
Add spectra for some Lee filters (data digitized from data sheets). Remove all references to data.table from data object build scripts. Rebuild all data objects with photobiology (0.8.11).
Rebuid data and package with photobiology 0.8.0 and remove dependency on package data.table.
Rebuid data and package with photobiology 0.6.0.
Added data for Petri dishes.
Revised script used for creating filter data objects. To avoid problems with conversions to absorbance and taking into account that what can be really measured is that transmittance is below the detection limit of the instrument used, the minimum value of fractional transmittance has been forced to be 1 E-5, with the meaning of < 1 E-5, consistently with the earlier encoding used for Schott optical glass filters.
Added data for Plexiglas 2458 GT (SUNTAN).
Rebuilt with photobiology 0.5.7, which is now required. The User Guide was updated to use simpler code as allowed by photobiologygg 0.2.5.
Rebuilt with photobiology 0.5.1, now required, which needed minor edits to the User Guide.
Rebuilt all filter.spct objects with photobiology 0.4.6 Vignettes updated.
Added to the 'catalogue of filters' vignette plots for filters that were missing.
Cleaned up the scripts I use for building the data objects. Decided so save storage space and to only include spectral transmittances expressed as fractions of one, now that the design of the code in the photobiology package is getting stable. Revised the 'catalogue of filters' vignette to solve some plotting problems, and to simplify the code used.
Renamed all filter spectra objects from '.dt' to '.spct'.
Added data for several plastic sheet types including several types of Plexiglas.
Added data for many Schott optical filters. Now data is in data.table format (compatible with data.frame), added class attributes preparing for future improvements. Data is now in S3 objects of class "filter.spc" but no class methods are yet defined. The names of the variables in the "filter.spc" objects has changed and now they contain the data both as percentages and fractions. This makes use easier, but wastes some storage space. Now photobiology 0.3.0 or later is required.
Function calc_filter_multipliers() was moved to package photobiology. However, this should be mostly invisible because the whole photobiology package is imported.
Added data for some optical glass filters from Schott.
Fixed a BAD bug in the rescaling code in calc_filter_multipliers that affected the returned values (percents vs. fractions).
Added missing import directive.
Small edits to vignettes.
Added warning to documentation as the spectral transmittance for Rosco #00 is not that of the filters currently being sold.
First version. Includes transmittance spectra for many of the filters we have measured during the last 20 years.