a matrix or a data frame containing the position of the beacons,
in the same order as they appear in fingerprints
rssirange
range of the RSSI data
norssi
value used to represent a not detected AP
alpha
path loss exponent
wapPow1
detected RSSI at one meter range
Value
An S4 class object of type ipfEstimation, with the following slots:
location -> a matrix with the predicted locations
errors -> a numeric vector with the errors, if loctest has been provided
neighbors -> NULL
weights -> NULL