Easily import multi-frequency acoustic data stored in 'HAC' files (see <doi:10.17895/ices.pub.5482> for more information on the format), and produce echogram visualisations with predefined or customized color palettes. It is also possible to merge consecutive echograms; mask or delete unwanted echogram areas; model and subtract background noise; and more important, develop, test and interpret different combinations of frequencies in order to perform acoustic filtering of the echogram's data.
| Version: | 0.1.3 | 
| Depends: | R (≥ 3.0.0) | 
| Imports: | geosphere, readHAC, pals | 
| Published: | 2025-04-13 | 
| DOI: | 10.32614/CRAN.package.echogram | 
| Author: | Héctor Villalobos | 
| Maintainer: | Héctor Villalobos <hvillalo at ipn.mx> | 
| BugReports: | https://github.com/hvillalo/echogram/issues | 
| License: | GPL-3 | 
| URL: | https://github.com/hvillalo/echogram | 
| NeedsCompilation: | no | 
| Materials: | README, NEWS | 
| CRAN checks: | echogram results | 
| Reference manual: | echogram.html , echogram.pdf | 
| Package source: | echogram_0.1.3.tar.gz | 
| Windows binaries: | r-devel: echogram_0.1.3.zip, r-release: echogram_0.1.3.zip, r-oldrel: echogram_0.1.3.zip | 
| macOS binaries: | r-release (arm64): echogram_0.1.3.tgz, r-oldrel (arm64): echogram_0.1.3.tgz, r-release (x86_64): echogram_0.1.3.tgz, r-oldrel (x86_64): echogram_0.1.3.tgz | 
| Old sources: | echogram archive | 
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