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src/util/tools.ts

@@ -210,20 +210,22 @@ export function getMoreYChartData(title, dataMap, percent, unit ) {
 
         let thisDataInfo = dataMap[subDataName];
 
+        let thisCount = 0;
         for (let key in thisDataInfo) {
             let value = parseFloat(thisDataInfo[key]);
             onceData.yMaxValue = Math.max(onceData.yMaxValue, value);
             onceData.yMinValue = Math.min(onceData.yMinValue, value);
             onceData.total += value;
+            thisCount += 1;
         }
 
-        onceData.yStepValue = getChartStepNumber(Math.ceil(onceData.yMaxValue - onceData.yMinValue / onceData.total));
+        onceData.yStepValue = getChartStepNumber(Math.ceil(onceData.yMaxValue - onceData.yMinValue) / thisCount );
 
         let thisUnit;
         if (percent) {
             thisUnit = "%";
             onceData.yMaxValue = 100;
-            onceData.yStepValue = Math.ceil(100 - onceData.yMinValue / onceData.total);
+            onceData.yStepValue = Math.ceil(100 - onceData.yMinValue ) / onceData.total;
         }
         else if (typeof unit == 'object') {
             thisUnit = unit[subDataName] || "";