log_sum_exp: log_sum_exp
In perms: Fast Permutation Computation
log_sum_exp R Documentation
log_sum_exp
Description
Computes the log sum exp of a vector.
Given input array = [x_1, ..., x_n], returns x_* + log(exp(x_1 - x_*) + ... + exp(x_n - x_*)),
where x_* = max(x_1, ... x_n). Ignores entries
with NA value.
Usage
log_sum_exp(x)
Arguments
x
Input vector.
Value
The log-sum-exp of the entries of the input vector.
Examples
library(perms)
x = c(1,2,3,-1,-1,1)
log_sum_exp(x)
perms documentation built on Sept. 11, 2024, 9:01 p.m.
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| log_sum_exp | R Documentation |
log_sum_exp
Description
Computes the log sum exp of a vector. Given input array = [x_1, ..., x_n], returns x_* + log(exp(x_1 - x_*) + ... + exp(x_n - x_*)), where x_* = max(x_1, ... x_n). Ignores entries with NA value.
Usage
log_sum_exp(x)
Arguments
x |
Input vector. |
Value
The log-sum-exp of the entries of the input vector.
Examples
library(perms)
x = c(1,2,3,-1,-1,1)
log_sum_exp(x)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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