A function to generate weights from an exponential distribution.
Usage
.exp_kernel(ed, NN, rate)
Arguments
- ed
a numeric value for entropy of the neighbourhood.
- NN
an integer for the number of neighbourhood cells the function
should consider. The value must be greater than or equal to 1. Default value
is 30.
- rate
a numeric value for rate of exponential distribution.
Value
a matrix where each column contains weights related to specific
entropy values.