```
library(gamesGA);
context("Fitness function");
agents <- NULL;
history_vec <- c(0,0,0,0,0,1,0,1,0,0,1,1,1,0,0,1,0,1,1,1,0,1,1,1);
history <- matrix(data = history_vec, ncol = 3, byrow = TRUE);
for(i in 1:10){
agents[[i]] <- rep(x = 0, times = 9);
}
agents2 <- NULL;
for(i in 1:10){
coop <- i - 1;
agents2[[i]] <- c(rep(x = 1, times = coop), rep(x = 0, times = 10 - coop));
}
ref_fits_c <- c(51, 64, 177, 168, 156, 192, 153, 117, 168, 176);
ref_fits_R <- c(54, 112, 171, 173, 218, 246, 247, 282, 337, 384);
payoffs <- c(3, 0, 5, 1);
test_that("Equal fitnesses (c call) for the same strategies", {
expect_equal( get_fitness( history = history,
agents = agents,
pay = payoffs,
useC = TRUE,
rounds = 10,
num_opponents = 10
),
rep(x = 300, times = 10))
})
test_that("Equal fitnesses (R call) for the same strategies", {
expect_equal( get_fitness( history = history,
agents = agents,
pay = payoffs,
useC = FALSE,
rounds = 10,
num_opponents = 10
),
rep(x = 300, times = 10))
})
test_that("Increasing fitnesses (c call) for better strategies", {
set.seed(1);
expect_equal( get_fitness( history = history,
agents = agents2,
pay = payoffs,
useC = TRUE,
rounds = 10,
num_opponents = 10
),
ref_fits_c)
})
test_that("Increasing fitnesses (R call) for better strategies", {
set.seed(1);
expect_equal( get_fitness( history = history,
agents = agents2,
pay = payoffs,
useC = FALSE,
rounds = 10,
num_opponents = 10
),
ref_fits_R)
})
set.seed(Sys.time())
```

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.