From 5e1619e3f13e71f4b112d29eed9063ad031c6e59 Mon Sep 17 00:00:00 2001
From: Evan Prodromou <evan@openearth.org>
Date: Tue, 16 Apr 2024 09:15:29 -0400
Subject: [PATCH] fix: remove unnecessary casts, rounding from series.estimate

Signed-off-by: Evan Prodromou <evan@openearth.org>
---
 app/src/util/series.ts | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/app/src/util/series.ts b/app/src/util/series.ts
index 4f53ea722..02453bc98 100644
--- a/app/src/util/series.ts
+++ b/app/src/util/series.ts
@@ -19,27 +19,27 @@ export function estimate(series: { year: number, value: number }[], year: number
     if (!next) {
       return null
     }
-    let rate = (1.0 * (next.value - first.value)) / (next.year - first.year);
+    let rate = (next.value - first.value) / (next.year - first.year);
     let value = first.value - rate * (first.year - year)
-    return Math.round(value)
+    return value
   } else if (year > series[series.length - 1].year) { // extrapolate forwards
     let last = series[series.length - 1]
     let prev = series.findLast(e => last.year - e.year >= year - last.year)
     if (!prev) {
       return null
     }
-    let rate = (1.0 * (last.value - prev.value)) / (last.year - prev.year);
+    let rate = (last.value - prev.value) / (last.year - prev.year);
     let value = last.value + rate * (year - last.year)
-    return Math.round(value)
+    return value
   } else { // interpolate
     let prev = series.findLast(e => e.year < year)
     let next = series.find(e => e.year > year)
     if (!prev || !next) {
       return null
     }
-    let rate = (1.0 * (next.value - prev.value)) / (next.year - prev.year);
+    let rate = (next.value - prev.value) / (next.year - prev.year);
     let value = prev.value + rate * (year - prev.year)
-    return Math.round(value)
+    return value
   }
 
   return null;