[update] methods, predicates sections updated

docs/api/config/config-property.md

@@ -38,7 +38,7 @@ The `config` parameters are used to define which fields will be applied as rows
       - for numeric values: min, max, sum, count
       - for text values: count
       - for date value: min, max, count  
-	    Sum - sums all the values of the selected data property and displays the sum  
+	  Sum - sums all the values of the selected data property and displays the sum  
 		Min - finds and displays the minimum value of the selected data property  
 		Max - finds and displays the maximum value of the selected data property  
 		Count - looks for all occurrences of the selected data property and displays their number; set by default for each newly added field

docs/api/config/methods-property.md

@@ -37,6 +37,21 @@ Each method is represented by a key-value pair, where the `method` is the name o
 
 By default, the `methods` property is an empty object ({}), which means that no custom methods are defined. There are 5 predefined methods: "sum", "min", "max", "count", "average". There is no limit to the number of sub-properties that can be defined in the methods object. 
 
+Predefined methods:
+
+~~~jsx
+const methods = {
+	sum: { label: "sum" },
+	min: { type: ["number", "date"], label: "min" },
+	max: { type: ["number", "date"], label: "max" },
+	count: {
+		type: ["number", "date", "text"],
+		label: "count",
+		branchMath: "sum",
+	},
+};
+~~~
+
 ## Example
 
 The example below shows how to calculate the exact count of unique values. The function takes an array of numbers (values) as an input and calculates the exact count of unique values using the **reduce** method. The **distinct_count** sub-property has a handler with a function that calculates the distinct count value from an array of numbers.

docs/api/config/predicates-property.md

@@ -40,14 +40,15 @@ The following default predicates are applied in case no predicate is specified v
 
 ~~~jsx
 const predicates = {
-	date: [
-		{ id: "$empty", label: "(date)" },
-		{ id: "year", label: "year" },
-		{ id: "month", label: "month" },
-		{ id: "day", label: "day" },
-		{ id: "hour", label: "hour" },
-		{ id: "minute", label: "minute" },
-	],
+	$empty: {
+		label: (v: any, type: any) => `raw ${type}`,
+		type: ["number", "date", "text"],
+	},
+	year: { label: "year", type: "date" },
+	month: { label: "month", type: "date" },
+	day: { label: "day", type: "date" },
+	hour: { label: "hour", type: "date" },
+	minute: { label: "minute", type: "date" },
 };
 ~~~
 
@@ -90,7 +91,6 @@ const predicates = {
 const widget = new pivot.Pivot("#pivot", {
   fields,
   data: dataset,
-  tableShape: { dateFormat: "%d %M %Y %H:%i" },
   predicates: { ...pivot.defaultPredicates, ...predicates },
   config: {
     rows: ["state"],

docs/guides/working-with-data.md

@@ -514,6 +514,21 @@ The widget provides the following default methods for data aggregation:
 - Max (for numeric and date values) - finds and displays the maximum value of the selected data property  
 - Count (for numeric, text, and date values) - looks for all occurrences of the selected data property and displays their number; this is the default operation assigned to each newly added field
 
+Predefined methods:
+
+~~~jsx
+const methods = {
+	sum: { label: "sum" },
+	min: { type: ["number", "date"], label: "min" },
+	max: { type: ["number", "date"], label: "max" },
+	count: {
+		type: ["number", "date", "text"],
+		label: "count",
+		branchMath: "sum",
+	},
+};
+~~~
+
 You can apply default methods using the `values` parameter of the [`config`](/api/config/config-property) property. See [Options for defining values](#options-for-defining-values) below.
 
 Example: 
@@ -715,7 +730,6 @@ const predicates = {
 const widget = new pivot.Pivot("#pivot", {
   fields,
   data: dataset,
-  tableShape: { dateFormat: "%d %M %Y %H:%i" },
   predicates: { ...pivot.defaultPredicates, ...predicates },
   config: {
     rows: ["state"],
@@ -730,8 +744,6 @@ const widget = new pivot.Pivot("#pivot", {
 ~~~
 
 
-
-
 ## Example
 
 In this snippet you can see how to use Pivot API for working with data: