diff --git a/index.html b/index.html
index dd56593..d5d840b 100644
--- a/index.html
+++ b/index.html
@@ -145,6 +145,9 @@ <h2>{{regionType}}</h2>
           <div class="buttonwrapper">
             <button @click="deselectAll" aria-Label="Deselect All Regions">Deselect All</button>
             <button @click="selectAll" aria-Label="Select All Regions">Select All</button>
+            <button @click="selectDecreasing" aria-Label="Select Decreasing Regions">Select Decreasing</button>
+            <button @click="selectIncreasing" aria-Label="Select Increasing Regions">Select Increasing</button>
+
           </div>
 
           <p style="padding-top: 1rem;">Showing {{regionType}} with at least {{minCasesInCountry}} {{selectedData}}</p>
diff --git a/vue-definitions.js b/vue-definitions.js
index 8e80f57..c381111 100644
--- a/vue-definitions.js
+++ b/vue-definitions.js
@@ -547,7 +547,21 @@ window.app = new Vue({
       this.selectedCountries = this.countries;
       this.createURL();
     },
+    
+    selectIncreasing() {
+      const reducer = (accumulator, currentValue) => currentValue ? accumulator + currentValue : accumulator;
+      // const topCountries = this.covidData.sort((a, b) => b.slope.slice(this.daysOfIncrease).reduce(reducer) - a.slope.slice(this.daysOfIncrease).reduce(reducer)).slice(0, 9).map(e => e.country);
+      this.selectedCountries = this.covidData.filter((e) => e.cases.length > this.daysOfIncrease ? e.slope.slice(-1 * this.daysOfIncrease).reduce(reducer) > e.slope.slice(-2 * this.daysOfIncrease, -1 * this.daysOfIncrease).reduce(reducer) : false).map((e) => e.country);
+      this.createURL();
+    },
 
+    selectDecreasing() {
+      const reducer = (accumulator, currentValue) => currentValue ? accumulator + currentValue : accumulator;
+      // const topCountries = this.covidData.sort((a, b) => b.slope.slice(this.daysOfIncrease).reduce(reducer) - a.slope.slice(this.daysOfIncrease).reduce(reducer)).slice(0, 9).map(e => e.country);
+      this.selectedCountries = this.covidData.filter((e) => e.cases.length > this.daysOfIncrease ? e.slope.slice(-1 * this.daysOfIncrease).reduce(reducer) <= e.slope.slice(-2 * this.daysOfIncrease, -1 * this.daysOfIncrease).reduce(reducer) : false).map((e) => e.country);
+      this.createURL();
+    },
+    
     deselectAll() {
       this.selectedCountries = [];
       this.createURL();
@@ -955,7 +969,7 @@ window.app = new Vue({
       height: NaN,
       referenceLineAngle: NaN
     },
-
+    daysOfIncrease: 4
   }
 
 });