Recent Updates in the aqp (Algorithms for Quantitative Pedology) Package for R
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New version of our ‘aqp’ package for quantitative soils investigations, available on CRAN (version 0.99-5) and R-Forge (0.99-8). Some of the major changes are listed below:
-------------------------- aqp 0.99-8 (2011-09-14) -------------------------- * soil.slot() will now accept boundaries defining a 'slab' over which aggregates are computed * soil.slot.multiple() now cleanly wraps soil.slot(), accepting all arguments - these two changes make it possible to ask: "what is the wt. mean value of some property within this slab, and among these groups?" - soil.slot.multiple() now uses a formula interface: NOTE that this will break existing scripts (sorry) -------------------------- aqp 0.99-7 (2011-09-01) -------------------------- * new functions for getting data out of PedonPC (MS Access) databases [windows only for now] - get_site_data_from_pedon_db() : site and pedon aggregate data - get_hz_data_from_pedon_db() : horizon level data - get_colors_from_pedon_db() : formats and mixes multiple colors / horizon + implemented in mix_and_clean_colors() * test_hz_logic() : basic function for testing horizon logic, returns TRUE/FALSE by ID * parallel operations now NON-functional, while we wait for plyr to support doSMP... * new ID plotting style for profile_plot() : handy when plotting large collections and/or long IDs -------------------------- aqp 0.99-4 (2011-08-15) -------------------------- * code and documentation clean-up * Soil Sata Access (SDA) query functions have been added - mapunit_geom_by_ll_bbox() : get map unit geometry by bounding box - MUKEYS_by_ll_bbox() : get map unit keys by bounding box - SDA_query() : retrieve soil tabular data via query written in SQL * additional customizations added to profile_plot * two new sample data sets + examples
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