From e3a4e015e36a1453a5d6fd84277cf58f499a1b59 Mon Sep 17 00:00:00 2001
From: Jon Ziebell <ziebelje@gmail.com>
Date: Tue, 2 Feb 2021 19:59:44 -0500
Subject: [PATCH] Fixed #317 - Metric resist balance point is sometimes wrong

Added more precision to profile linear trendline generation.
---
 api/profile.php                           | 4 ++--
 js/component/card/temperature_profiles.js | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/api/profile.php b/api/profile.php
index 3fc28c5..2e3641d 100644
--- a/api/profile.php
+++ b/api/profile.php
@@ -960,8 +960,8 @@ class profile extends cora\api {
     $intercept = (($sum_y) - ($slope * $sum_x)) / ($n);
 
     return [
-      'slope' => round($slope, 2),
-      'intercept' => round($intercept, 2)
+      'slope' => round($slope, 4),
+      'intercept' => round($intercept, 4)
     ];
   }
 }
diff --git a/js/component/card/temperature_profiles.js b/js/component/card/temperature_profiles.js
index 0a58daa..c881a2c 100644
--- a/js/component/card/temperature_profiles.js
+++ b/js/component/card/temperature_profiles.js
@@ -145,6 +145,9 @@ beestat.component.card.temperature_profiles.prototype.get_data_ = function() {
 /**
  * Get a linear trendline from a set of data.
  *
+ * IMPORTANT: This exists in the profile already but it's wrong to use it
+ * directly as it's not right for Celsius.
+ *
  * @param {Object} data The data; at least two points required.
  *
  * @return {Object} The slope and intercept of the trendline.