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cleaned some io code

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This commit is contained in:
Daniel Bauer
2018-10-06 11:05:14 +02:00
parent bab1046d1a
commit 0dc8e90c02
1 changed files with 21 additions and 17 deletions
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38
src/io.rs
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@@ -86,9 +86,6 @@ fn read_window_file(window_file: &str, cfg: &Config) -> Option<Histogram> {
let buf = BufReader::new(&f);
let mut global_hist = vec![0.0; cfg.num_bins];
let mut num_points: u32 = 0;
let mut max_bin: usize = 0;
let mut min_bin: usize =(cfg.num_bins-1) as usize;
let bin_width = (cfg.hist_max - cfg.hist_min)/(cfg.num_bins as f32);
for l in buf.lines() {
let line = l.unwrap();
@@ -104,13 +101,6 @@ fn read_window_file(window_file: &str, cfg: &Config) -> Option<Histogram> {
if x > cfg.hist_min && x < cfg.hist_max {
let bin_ndx = ((x-cfg.hist_min) / bin_width) as usize;
global_hist[bin_ndx] += 1.0;
num_points += 1;
if bin_ndx > max_bin {
max_bin = bin_ndx
}
if bin_ndx < min_bin {
min_bin = bin_ndx
}
}
}
None => {
@@ -119,14 +109,28 @@ fn read_window_file(window_file: &str, cfg: &Config) -> Option<Histogram> {
}
}
}
global_hist.truncate(max_bin+1);
if global_hist.len() > 1 || global_hist[0] != 0.0 {
global_hist.drain(..min_bin);
Some(Histogram::new(min_bin, max_bin, num_points, global_hist))
} else {
None
let mut max_bin: usize = 0;
let mut min_bin: usize =(cfg.num_bins-1) as usize;
for bin in 0..global_hist.len() {
if global_hist[bin] != 0.0 && bin > max_bin {
max_bin = bin;
}
if global_hist[bin] != 0.0 && bin < min_bin {
min_bin = bin;
}
}
if max_bin == min_bin {
None // zero length histogram
} else {
// trim global hist to save memory
global_hist.truncate(max_bin+1);
global_hist.drain(..min_bin);
let num_points: f32 = global_hist.iter().sum();
Some(Histogram::new(min_bin, max_bin, num_points as u32, global_hist))
}
}
#[cfg(test)]