Update to Rust 2018

Author: jturner314

Cargo.toml

@@ -2,6 +2,7 @@
 name = "ndarray-stats"
 version = "0.1.0"
 authors = ["Jim Turner <ndarray-stats@turner.link>", "LukeMathWalker <rust@lpalmieri.com>"]
+edition = "2018"
 
 license = "MIT/Apache-2.0"
 

src/entropy.rs

@@ -218,7 +218,7 @@ where
 mod tests {
     use super::EntropyExt;
     use approx::assert_abs_diff_eq;
-    use errors::{EmptyInput, MultiInputError};
+    use crate::errors::{EmptyInput, MultiInputError};
     use ndarray::{array, Array1};
     use noisy_float::types::n64;
     use std::f64;

src/lib.rs

@@ -40,13 +40,13 @@ extern crate ndarray_rand;
 #[cfg(test)]
 extern crate quickcheck;
 
-pub use correlation::CorrelationExt;
-pub use entropy::EntropyExt;
-pub use histogram::HistogramExt;
-pub use maybe_nan::{MaybeNan, MaybeNanExt};
-pub use quantile::{interpolate, Quantile1dExt, QuantileExt};
-pub use sort::Sort1dExt;
-pub use summary_statistics::SummaryStatisticsExt;
+pub use crate::correlation::CorrelationExt;
+pub use crate::entropy::EntropyExt;
+pub use crate::histogram::HistogramExt;
+pub use crate::maybe_nan::{MaybeNan, MaybeNanExt};
+pub use crate::quantile::{interpolate, Quantile1dExt, QuantileExt};
+pub use crate::sort::Sort1dExt;
+pub use crate::summary_statistics::SummaryStatisticsExt;
 
 mod correlation;
 mod entropy;

src/maybe_nan/mod.rs

@@ -18,25 +18,25 @@ pub trait MaybeNan: Sized {
     /// Converts the value.
     ///
     /// If the value is `None`, a NaN value is returned.
-    fn from_not_nan(Self::NotNan) -> Self;
+    fn from_not_nan(_: Self::NotNan) -> Self;
 
     /// Converts the value.
     ///
     /// If the value is `None`, a NaN value is returned.
-    fn from_not_nan_opt(Option<Self::NotNan>) -> Self;
+    fn from_not_nan_opt(_: Option<Self::NotNan>) -> Self;
 
     /// Converts the value.
     ///
     /// If the value is `None`, a NaN value is returned.
-    fn from_not_nan_ref_opt(Option<&Self::NotNan>) -> &Self;
+    fn from_not_nan_ref_opt(_: Option<&Self::NotNan>) -> &Self;
 
     /// Returns a view with the NaN values removed.
     ///
     /// This modifies the input view by moving elements as necessary. The final
     /// order of the elements is unspecified. However, this method is
     /// idempotent, and given the same input data, the result is always ordered
     /// the same way.
-    fn remove_nan_mut(ArrayViewMut1<Self>) -> ArrayViewMut1<Self::NotNan>;
+    fn remove_nan_mut(_: ArrayViewMut1<Self>) -> ArrayViewMut1<Self::NotNan>;
 }
 
 /// Returns a view with the NaN values removed.

src/quantile/mod.rs

@@ -1,12 +1,12 @@
 use self::interpolate::{higher_index, lower_index, Interpolate};
 use super::sort::get_many_from_sorted_mut_unchecked;
 use crate::errors::{EmptyInput, MinMaxError, MinMaxError::UndefinedOrder};
-use errors::QuantileError;
+use crate::errors::QuantileError;
 use ndarray::prelude::*;
 use ndarray::{Data, DataMut, RemoveAxis, Zip};
 use noisy_float::types::N64;
 use std::cmp;
-use {MaybeNan, MaybeNanExt};
+use crate::{MaybeNan, MaybeNanExt};
 
 /// Quantile methods for `ArrayBase`.
 pub trait QuantileExt<A, S, D>