Small clean up

src/fitter/recursive.rs

@@ -7,6 +7,7 @@ use crate::kernel::Kernel;
 
 use super::Fitter;
 
+#[derive(Clone)]
 pub struct Recursive<K> {
     ts_new: Vec<f64>,
     kernel: K,
@@ -232,7 +233,7 @@ impl<K: Kernel> Fitter for Recursive<K> {
             self.ts
                 .iter()
                 .position(|tc| t <= tc)
-                .unwrap_or_else(|| self.ts.len())
+                .unwrap_or(self.ts.len())
         });
 
         for (i, nxt) in locations.into_iter().enumerate() {
@@ -415,7 +416,7 @@ mod tests {
     }
 
     fn data_loglik() -> f64 {
-        -17.357282245711051
+        -17.35728224571105
     }
 
     fn data_ts_pred() -> &'static [f64] {