Feature: Paired t-test table visualization (#3473)

* Feature: paired t-test table viz

* Added unit tests for viz

superset/assets/javascripts/explore/stores/controls.jsx

@@ -1370,5 +1370,26 @@ export const controls = {
     description: t('The color scheme for rendering chart'),
     schemes: ALL_COLOR_SCHEMES,
   },
+
+  significance_level: {
+    type: 'TextControl',
+    label: 'Significance Level',
+    default: 0.05,
+    description: 'Threshold alpha level for determining significance',
+  },
+
+  pvalue_precision: {
+    type: 'TextControl',
+    label: 'p-value precision',
+    default: 6,
+    description: 'Number of decimal places with which to display p-values',
+  },
+
+  liftvalue_precision: {
+    type: 'TextControl',
+    label: 'Lift % precision',
+    default: 4,
+    description: 'Number of decimal places with which to display lift values',
+  },
 };
 export default controls;

superset/assets/javascripts/explore/stores/visTypes.js

@@ -1101,6 +1101,24 @@ export const visTypes = {
       },
     },
   },
+
+  paired_ttest: {
+    label: 'Time Series - Paired t-test',
+    showOnExplore: true,
+    requiresTime: true,
+    controlPanelSections: [
+      sections.NVD3TimeSeries[0],
+      {
+        label: 'Paired t-test',
+        expanded: false,
+        controlSetRows: [
+          ['significance_level'],
+          ['pvalue_precision'],
+          ['liftvalue_precision'],
+        ],
+      },
+    ],
+  },
 };
 
 export default visTypes;

superset/assets/package.json

@@ -53,6 +53,7 @@
     "d3-tip": "^0.6.7",
     "datamaps": "^0.5.8",
     "datatables.net-bs": "^1.10.15",
+    "distributions": "^1.0.0",
     "immutable": "^3.8.1",
     "jed": "^1.1.1",
     "po2json": "^0.4.5",

superset/assets/visualizations/main.js

@@ -33,5 +33,6 @@ const vizMap = {
   world_map: require('./world_map.js'),
   dual_line: require('./nvd3_vis.js'),
   event_flow: require('./EventFlow.jsx'),
+  paired_ttest: require('./paired_ttest.jsx'),
 };
 export default vizMap;

superset/assets/visualizations/paired_ttest.css

@@ -0,0 +1,67 @@
+.paired_ttest .scrollbar-container {
+  overflow: scroll;
+}
+
+.paired-ttest-table .scrollbar-content {
+  padding-left: 5px;
+  padding-right: 5px;
+  margin-bottom: 0;
+}
+
+.paired-ttest-table h1 {
+  margin-left: 5px;
+}
+
+.reactable-data tr,
+.reactable-header-sortable {
+  -webkit-transition: ease-in-out 0.1s;
+  transition: ease-in-out 0.1s;
+}
+
+.reactable-data tr:hover {
+  background-color: #e0e0e0;
+}
+
+.reactable-data tr .false {
+  color: #f44336;
+}
+
+.reactable-data tr .true {
+  color: #4caf50;
+}
+
+.reactable-data tr .control {
+  color: #2196f3;
+}
+
+.reactable-data tr .invalid {
+  color: #ff9800;
+}
+
+.reactable-data .control td {
+  background-color: #eeeeee;
+}
+
+.reactable-header-sortable:hover,
+.reactable-header-sortable:focus,
+.reactable-header-sort-asc,
+.reactable-header-sort-desc {
+  background-color: #e0e0e0;
+  position: relative;
+}
+
+.reactable-header-sort-asc:after {
+  content: '\25bc';
+  position: absolute;
+  right: 10px;
+}
+
+.reactable-header-sort-desc:after {
+  content: '\25b2';
+  position: absolute;
+  right: 10px;
+}
+
+.paired-ttest-table table {
+  margin-bottom: 0;
+}