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Code Issues 1 Releases Wiki Activity

Add mean function to boot.janet

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Update changelog.
This commit is contained in:
Calvin Rose 2019-09-19 20:26:16 -05:00
parent 908a3b6f5c
commit 8e427317cd
2 changed files with 7 additions and 0 deletions
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2
CHANGELOG.md
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@ -2,6 +2,8 @@
All notable changes to this project will be documented in this file. All notable changes to this project will be documented in this file.
## Unreleased ## Unreleased
- Fix an issue that prevent some valid programs from compiling.
- Add `mean` to core.
- Allow (length x) on typed arrays an other abstract types that implement - Allow (length x) on typed arrays an other abstract types that implement
the :length method. the :length method.

5
src/boot/boot.janet
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@ -445,6 +445,11 @@
(each x xs (+= accum x)) (each x xs (+= accum x))
accum) accum)
(defn mean
"Returns the mean of xs. If empty, returns NaN."
[xs]
(/ (sum xs) (length xs)))
(defn product (defn product
"Returns the product of xs. If xs is empty, returns 1." "Returns the product of xs. If xs is empty, returns 1."
[xs] [xs]