Filters out samples (occurrence or background points) that have
NA, NaN, or a designated NODATA sentinel value in any
of their environmental variable values. This mirrors the Java
Maxent hasAllData() check in FeaturedSpace.java and the
NODATA_value = -9999 sentinel used throughout the Java code.
Usage
maxent_complete_cases(env_vals, nodata_value = -9999)
Arguments
- env_vals
Named list of numeric vectors (one per environmental
variable). All vectors must have the same length.
- nodata_value
Numeric: sentinel value treated as missing
(default -9999).
Value
An integer vector of 1-based indices of samples that have
valid (non-missing) values for all environmental variables.
Examples
env <- list(
temp = c(15, NA, 25, 18, -9999),
precip = c(100, 200, 150, 80, 300)
)
valid <- maxent_complete_cases(env)
# Returns c(1, 3, 4) -- indices 2 (NA) and 5 (-9999) are removed
