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perform unneeded filter

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Daniel Bauer
2018-10-18 01:14:12 +02:00
parent f8cc8b853c
commit 65a3306e36
1 changed files with 4 additions and 8 deletions
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12
src/lib.rs
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@@ -63,14 +63,10 @@ fn calc_bin_probability(bin: usize, ds: &Dataset, F: &[f64]) -> f64 {
// This evaluates the second WHAM equation for each window and returns exp(F/kT)
fn calc_window_F(window: usize, ds: &Dataset, P: &[f64]) -> f64 {
let f: f64 = (0..ds.num_bins).zip(P.iter()) // zip bins and P
.filter_map(|bin_and_prob: (usize, &f64)| {
if bin_and_prob.1 == &0.0 { // skip zeros for speed
None
} else {
let bias = ds.calc_bias(bin_and_prob.0, window);
Some(bin_and_prob.1 * bias)
}
}).sum();
.map(|bin_and_prob: (usize, &f64)| {
let bias = ds.calc_bias(bin_and_prob.0, window);
bin_and_prob.1 * bias
}).sum();
1.0/f
}