Drop absolute sum option

src/components/chart/statistics-chart.ts

@@ -30,14 +30,13 @@ import {
 import type { HomeAssistant } from "../../types";
 import "./ha-chart-base";
 
-export type ExtendedStatisticType = StatisticType | "state" | "sum_rel";
+export type ExtendedStatisticType = StatisticType | "state";
 
 export const statTypeMap: Record<ExtendedStatisticType, StatisticType> = {
   mean: "mean",
   min: "min",
   max: "max",
   sum: "sum",
-  sum_rel: "sum",
   state: "sum",
 };
 @customElement("statistics-chart")
@@ -345,14 +344,7 @@ class StatisticsChart extends LitElement {
 
       let prevDate: Date | null = null;
       // Process chart data.
-      const initVal: Record<"sum" | "sum_rel", number | null> = {
-        sum: null,
-        sum_rel: null,
-      };
-      const prevSum: Record<"sum" | "sum_rel", number | null> = {
-        sum: null,
-        sum_rel: null,
-      };
+      let prevSum: number | null = null;
       stats.forEach((stat) => {
         const date = new Date(stat.start);
         if (prevDate === date) {
@@ -362,12 +354,12 @@ class StatisticsChart extends LitElement {
         const dataValues: Array<number | null> = [];
         statTypes.forEach((type) => {
           let val: number | null;
-          if (type === "sum" || type === "sum_rel") {
-            if (initVal[type] === null) {
-              initVal[type] = val = type === "sum_rel" ? 0 : stat.sum || 0;
-              prevSum[type] = stat.sum;
+          if (type === "sum") {
+            if (prevSum === null) {
+              val = 0;
+              prevSum = stat.sum;
             } else {
-              val = initVal[type]! + ((stat.sum || 0) - prevSum[type]!);
+              val = (stat.sum || 0) - prevSum;
             }
           } else {
             val = stat[type];

src/panels/lovelace/editor/config-elements/hui-statistics-graph-card-editor.ts

@@ -41,7 +41,6 @@ import { statTypeMap } from "../../../../components/chart/statistics-chart";
 const statTypeStruct = union([
   literal("state"),
   literal("sum"),
-  literal("sum_rel"),
   literal("min"),
   literal("max"),
   literal("mean"),
@@ -67,7 +66,7 @@ const cardConfigStruct = assign(
 );
 
 const periods = ["5minute", "hour", "day", "month"] as const;
-const stat_types = ["mean", "min", "max", "sum", "sum_rel", "state"] as const;
+const stat_types = ["mean", "min", "max", "sum", "state"] as const;
 
 @customElement("hui-statistics-graph-card-editor")
 export class HuiStatisticsGraphCardEditor

src/translations/en.json

@@ -518,8 +518,7 @@
           "max": "max",
           "mean": "mean",
           "state": "state",
-          "sum": "sum",
-          "sum_rel": "change"
+          "sum": "sum"
         }
       },
       "service-picker": {
@@ -3972,8 +3971,7 @@
                 "min": "Min",
                 "max": "Max",
                 "state": "State",
-                "sum": "Sum (absolute)",
-                "sum_rel": "Change"
+                "sum": "Sum (change during period)"
               },
               "chart_type": "Chart type",
               "periods": {