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authorHolden Rohrer <holden.rohrer@gmail.com>2019-12-27 16:35:16 -0500
committerHolden Rohrer <holden.rohrer@gmail.com>2019-12-27 16:35:16 -0500
commita176c8d5ee2e022e749bba234d597f0725ea8476 (patch)
treec1568d7e963ea53ad19dd8947da6882b428d6323
parent22dbbd1e651743da8c533f2fb4a92ad681c46f67 (diff)
added array normalizing util
-rw-r--r--utils/norm.js8
1 files changed, 8 insertions, 0 deletions
diff --git a/utils/norm.js b/utils/norm.js
new file mode 100644
index 0000000..a1a4fb3
--- /dev/null
+++ b/utils/norm.js
@@ -0,0 +1,8 @@
+// Normalizes an array of numbers such that they sum to one
+
+module.exports = function(arr){ // Modifies arr
+ let sum = arr.reduce( (acc, cur) => arr+cur );
+ for (elem of arr)
+ elem = elem/sum;
+ return arr;
+}