| read_iti {benthos} | R Documentation |
Read and Validate Infaunal Trophic Index Files
Description
This function reads and checks files containing Infaunal Trophic Index (ITI) data (Gittenberger & Van Loon, 2013)
Usage
read_iti(filename)
validate_iti(.data)
Arguments
filename |
name of the ITI file (character). |
.data |
table in ITI-format |
Details
The function performs the following tasks:
checks the existence of
filename;checks availablitity of required columns (case insensitive), i.e., TAXON and GROUP;
removes redundant spaces;
removes duplicated records.
checks if all ITI classes are I, II, III, or IV
The column 'GROUP' contains the Roman numerals I, II, III, and IV, with the following meaning:
I: suspension feeders;
II: interface feeders;
III: surface deposit feeders;
IV: subsurface deposit feeders.
Value
A data frame with columns TAXON containing taxa and
GROUP containing user-defined ITI-groups
(see Gittenberger & Van Loon, 2013).
Functions
-
validate_iti(): validator for ITI-format
References
Gittenberger A. and W. van Loon, 2013. Sensitivities of marine macrozoobenthos to environmental pressures in the Netherlands. Nederlandse Faunistische Mededelingen 41: 79-112.