'''Important''': After manually editing the expression, You can create expressions (formulas) directly in the regular operators dashboard components. It can thus display calculated values that are not be used until you ''Clear All'' present in the filters;datasource file/spreadsheet.

==== Value type operand ====Are numeric values of * If the float type (Real numbers domain). These values allow component has the use of a integer columns ''Total Price'' and a fraction part''Quantity'', separated by you can create an expression to calculate the dot (.) character (decimal separator)''Unit Price''. Would be like this: ** ''"Total Price"''/ 'Examples'"Quantity"'': 1* In addition, 1.05you can use fixed values, 2.55;such as:** ''"Total price"'' / 10

==== Date type operand ====Are values We just remember that express any datecurrently TaticView only supports expressions whose numeric return. It is possible to determine a date representing it as a string, being delimited by the simple quote (') character and separated by the bar (/) character. The default supported format is "dd/MM/yyyy". '''Examples''': '01/01/2011', '29/02/2000';

==== Identifier type operand ====Are values Expressions support the backslash as [[EscapeChar|escape character]] so that represent a field or variable in names can contain the expression. Used to make reference to data source columns, delimited by double quotes ("). '''Examples''': "City.City", "Productdelimiting characters.Product";

==== Parenthesis ====Used to group and separate Below are details about how the expressions parts. Expressions inside parenthesis are processed first. '''Examples'''work: ("Profit" / "Total Price" ) + 10

==Basic structure of a Expression (Formula) == System variable type operand ====Are system pre-defined variables. These values are replaced in run-time by pre-determined values, delimited by double quotes (") and preceded by star (#). By now only one variable is available: "#null" that indicates null values or fields.

It is the name of the field or column involved in the expression, it must be delimited by double quotes. * Examples: "Average Price". "Screw 1\" philips", "Seler" ==== Value Operand ==== It's the numerical values. You can use both while values and decimal values. For decimal values, the decimal separator should be the point. * Examples: 1, 1.05, 2.55 * Important: Do not use thousand separator in numeric values. ==== Text Operand ==== It's the text operands. If you want to use this type of operand in a expression, you must delimit them by the single quotation mark ('). * Examples: 'John Snow', 'California', 'Spaghetti'  ==== Date Operand ==== These are values that express any date. To represent a date in expressions the behaviour is similar to text operands, i.e. the content must be surrounded by single quotation marks ('). However, the mask ''dd/MM/yyyy'' must be used. * Examples: '01/01/2019', '14/11/2019', '25/12/2019'  ==== Boolean Operand ==== They're operators of the true or false type. Normally user to validate, or not, a condition in a more complex expression. * Examples: true, false  ==== Parentheses ==== Used to group and separate parts of on expression. Expressions within parentheses are processed first. * Example: ("Profit"/"Total Price") + 10  ==== System variable Operand ==== These are predefined variables in the system. To use the system variables you must precede them by hashtag (#) and delimit them by double quotes("). Currently only the "#null" variable is available and indicates null content. * Example: IF("Product" == "#null";0;20) == Arithmetic Expressions === Arithmetic expressions relate two operands (which can be any the operands described above, or another expression) to make up the sum, subtraction, multiplication or division.

Sum Add two value operandsor another expression result. Represented by the sum (''+) character'' charecter. Syntax: '' <operand/operating or expressionresult> '''+ ''' <operand/operating or expressionresult>''. Example: '''Examples''': "Taxes" + "Commissions";''' - Sums the values of the fields ''Taxes'' and ''Commissions'' 

 Subtract two value operandsor another expression result. Represented by the subtract or hyphen (''-) character'' charecter. Syntax: '' <operand/operating or expressionresult> '''- ''' <operand/operating or expressionresult>''. Example: '''Examples''': "Gross SalePrice" - "Taxes";''' - Subtracts the values ​​from the ''Price'' and ''Taxes'' fields. 

Multiplies two value operands or another expression result. Represented by the multiplication charecter ''*''. Syntax: <operating or expression result> '''*''' <operating or expression result> Example: '''"Quantity" * "Unit Price"''' - Multiplies the value of the ''Quantity'' field by the value of the ''Unit Price'' field.  ==== Division(/) ====Divides Divide two value operandsor another expression result. Represented by the divide or bar (division charecter ''/) character''. Syntax: '' <operand/operating or expressionresult> '''/ ''' <operand/operating or expressionresult>''. Example: '''Examples''': "Total ValuePrice" / "AmountQuantity"''' - Divides the value of the ''Price'' field by the value of the ''Quantity'' field.  == Relational Expressions == Relational expressions compare two operands (value/text or other expression) to assess whether a condition is true or false. Normally used with decision functions, such as ''IF''. 

It compares if two operands are the same, returning true if they are the same or false if they are different. Represented by the equality operator ''=== Relational Expressions ===''.

The relational expressions compare two operands (value Syntax: <operating or another expression) to evaluate if a condition is result> '''=='true'' <operating or expression result>Example: '''falseIF("Product" == "#null";0;20)''. Usually used with decision functions' - If the ''Product'' is null, like return the value ''IF0''.Otherwise return the value ''20''

Performs the different comparison expression between It compare if two operandsare different, returning true if they were different or false if equal. Represented by the different differente operator (''!=)''. Syntax: '' <operating or expressionresult> '''!= ''' <operating or expressionresult>''.Example: '''Examples''': IF("City.CityProduct" != 'New YorkLasagna';0;20)''' - If the ''Product'' is different from ''Lasagna'', return the value ''0''. Otherwise return the value ''20'' 

Compares if the first operator (from the left) is greater than the second operator (from the right), returning true if it is greater and false if it is lesser or equal. Represented by the greater operator ''>''. Syntax: <operating or expression result> '''>''' <operating or expression result>Example: '''IF("Gross Value" > 1000;1;0)''' - If the ''Gross Value'' is greater than ''1000'', returns the value ''1'', if not the value ''0''  ==== Greater or equal than to (>=) ====Return ''true'' Compares if the first operator (from the first expression left) is greater than or equal to the second expression operator (from the right), returning true if it is greater or equal and ''false'' otherwiseif it is lesser. Represented by the greater or equal operator ''>=''. Syntax: <operating or expression result> '''>=''' <operating or expression result>Example: '''IF("Gross Value" >=2500;100;0)''' - If ''Gross Value'' is greater than or equal to ''2500'' returns ''100'', otherwise returns ''0''  ==== Less than (<) ==== Compares if teh first operator (from the left) is lesser than the second operator (from the right), returning true if it is lesser and false if it is greater or equal. Represented by the Lesser operator ''<''. Syntax: <operating or expression result> '''<'''<operating or expressionresult> Example: '''IF("Gross Value" < 100;50;200)''' - If ''Gross Value'' is less than ''100'', returns ''50'' if not ''200''  ==== Less or equal to (<=) ==== Compares if the first operator (from the left) is lesser or equal to the second operator (from the right), returning true if it is lesser or equal and false if it is greater. Represented by the lesser or equal operator ''<=''. Syntax: <operating or expression result>'''<= ''' <operating or expressionresult>Example: '''IF("Gross Value" <= 500;100;0)''' - If ''Gross Value'' is less than or equal to ''500'' returns ''100'', if not ''0''  == Logical Expressions == Logical expressions group together two operands (Boolean or other expression) to make up a logical expression, in order to evaluate the relationship of two Boolean operators to a true or false result. This type of expression is usually used for decision making, such as IF and with relational expressions.  ==== And Operator (&&) ==== Executes the logical operation ''AND'' between two Boolean values. Both values must return true so that the result of the operation is true. Represented by the ''&&''operator. Syntax: <expression> && <expression>Examples: ''': IF(("Order DatePrice" >0) && ("Seller" == '01/01/2011John Snow');450;0)''' - If ''Price'' is greater than ''0'' '''AND''' ''Seller'' is equal to ''John Snow'', returns ''450'' if not returns ''0'' '''IF(("Order DateCity"!= "#null") && ("Product" != 'Lasagna');1;0);''' - If ''City'' is non-null '''AND''' ''Product'' is different from ''Lasagna'' returns ''1'' if it does not return ''0''

==== Lesser or equal than Or Operator (<=||) ====Return ''true'' if the the first expression is lesser than or equal to the second expression and ''false'' otherwise. Represented by the lesser or equal operator (<=). Syntax: ''<expression> <= <expression>''. '''Examples''': IF("Order Date" <= '01/01/2011';"Order Date";0).

Syntax: <expression> || <expression>Examples: '''IF(("Price" > 1000) || ("Profit" >=50);75;55)''' - If ''Price'' is greater than ''1000'' '''OR''' ''Profit'' is greater than or equal to ''50'' returns ''75'' if not ''55'' '''IF(("City" !="#null") || ("Product" != Logical Expressions ==='Lasagna');1;0)''' - If ''City'' is non-null '''OR''' ''Product'' is different from ''Lasagna'' returns ''1'' if it does not return ''0''

==== And Denial Operator (&&!) ====Performs the logical operation ''AND'' between two boolean values. The two operands must be ''true'' for the result of the operation to be ''true''. Represented by the ''AND'' operator (&&). Syntax: ''<expression> && <expression>''. '''Examples''': IF((Gross Sales > '0') && (Seller == 'John Snow');'Sold';'Not Sold'), IF((City!="#null") && (Date<DAY_FROM_TODAY(0));1;0);

==== Or (||) ====Performs the logical negation operation ''OR'' between two for a boolean valuesvalue. One of the two operands must be ''true'' for If the result of the operation is true the negation operator converts to be ''true''false and vice versa. Represented by the ''OR'' operator (||). Syntax: ''<expression> || <expression>!''. '''Examples''': IF((Gross Sales > '0') || (Sold == 'true');'Sold';'Not Sold'), IF((City!="#null") || (Date<DAY_FROM_TODAY(0));1;0);

==== Not (Syntax: !) ====<expression>Example:Performs the denial logical operation for a boolean value. If the operand are ''true'IF(!BETWEEN("Delivery Date"; ' the 01/01/2015'; 'NOT31/12/2015');2016;2015)' convert it to ''false'' (and the other way around). Represented by - If the ''NOT'' operator (!). Syntax: Delivery Date''! <expression>is ''. 'NOT''Examples'between '': IF(!BETWEEN("Date", '01/01/20132015'' and ', '12/31/12/20132015'');returns 'Not 2013';2016'2013').If between this period returns ''2015''

Basic helper functions are standard system functions and implement useful features for composing complex expressions.  ==== ABS function ==== Function that returns the absolute numeric value of a base numeric value. Syntax: ABS(<value operator or expression>)Example: '''ABS("Price" / "Quantity")''' - Returns the absolute value of ''Price'' divided by ''Quantity''  ==== AVG function ==== Returns the average of the values ​​of a sequence of values. It can be used to return the average of different values ​​of the same row of tables. Syntax: AVG(<expression 1>; <expression 2>; ...)Example: '''AVG("Taxes"; "Profit"; "Cost")''' - Returns the average between the sum of the ''Taxes'', ''Profit'' and ''Cost'' columns  ==== BETWEEN function ==== Checks whether a value is within the limits of the parameters used. Return true or false. Syntax: BETWEEN(<expression to be tested>; <initial limit>; <end limit>)Example: '''BETWEEN("Date Issued"; '01/01/2019'; '31/12/2019')''' - Returns true if ''Date Issued'' is between ''01/01/2019'' and ''12/31/2019''. Otherwise returns false ==== COUNT function ==== Returns number of occurrences (lines) for column or value. By now this functions works only at Datasource expressions Syntax: COUNT(<expression>) Example: '''COUNT("Product")''' - Returns number of occurrences (lines) of products ==== COUNT_DISTINCT function ==== Returns number of unique occurrences (lines) for column or value. By now this functions works only at Datasource expressions Syntax: COUNT_DISTINCT(<expression>) Example: '''COUNT_DISTINCT("Product")''' - Returns number of unique (different) occurrences (lines) of products ==== IF ELSE function (If .... Otherwise ...) ==== Tests a Boolean expression and applies a condition to true or another condition to false. You need three parameters, separated by semicolons (;). The first parameter is the expression to be tested, the second the value to be applied in case of true, and the third to be applied in case of false. Syntax: IF(<expression to be tested>; <expression if true>; <expression if false>)Examples: '''IF(BETWEEN("Value";0;100);10;250)''' - If ''Value'' is between ''0'' and ''100'' returns ''10'', if not ''250'' '''IF("Profit" == 0;0;"Profit" + "Taxes")''' - If ''Profit'' equals ''0'' returns ''0'', if it does not return the sum between ''Profit'' and ''Taxes'' '''IF("Product Code" == 3231;0;"Quantity" * 3;"Quantity")''' - If ''Product Code'' equals ''3231'' returns ''Quantity'' plus 3 ==== LOG function ==== Returns the logarithm of a number on a defined basis. It can be used with only one parameter, in this case the "base 10" logarithm is used . If two parameters are used, the second server to inform the base to be used by the logarithm. Syntax: LOG(<expression>;<base>)Examples: '''LOG("Profit")'''- Returns the logarithm of the field ''Profit'' '''LOG("Price";2)''' - Returns the logarithm of the ''Price'' field in base ''2''  ==== MAX function ==== Returns the largest value between two values. Syntax: MAX(<expression 1>;<expression 2>)Example: '''"Value" / MAX("Quantity";1)''' - Divides ''Value'' by the largest value between ''Quantity'' and ''1''  ==== MIN function ==== Returns the smallest value between two values. Syntax: MIN(<expression 1>; <expression 2>)Example: '''"Value" / MIN("Cost"; 100)''' - Divides ''Value'' by the smallest value between ''Cost'' and ''100''  ==== POWER function ==== Returns the power of a value in a defined exponent. It can be used with only one parameter, in this case it considers the default exponent 2. If a second parameter is passed, this will be the exponent. Syntax: POW(<expression>; <exponent>)Examples: '''POW("Profit")''' - Returns the power of the ''Profit'' value. '''POW("Cost"; 3)''' - Returns the power of the ''Cost'' value, raised to ''3''  ==== RANDOM function ==== Returns a random number within the range of values ​​passed as arguments. Syntax: RANDOM(<start limit>; <end limit>)Example: '''RANDOM(10;100)''' - Returns a random number between ''10'' and ''100'' ==== ROUND function ==== Returns the rounded value of a value column or value. Syntax: ROUND(<value>;<precision>) Example: '''ROUND("Profit")''' - If Profit 10.38 returns 10.00 '''ROUND(15.65)''' - Returns 16.00 '''ROUND(1.777;1)''' - Returns 1.8 == Basic == SQRT function (Square Root) ==== Returns the square root of a value. Syntax: SQRT(<value or expression>)Examples: '''SQRT("Profit")''' - Returns the square root of the value ''Profit'' '''SQRT(81)''' - Returns the square root of ''81''  ==== LIKE function ==== Returns true if the desired content is found in the list and false otherwise. It needs two parameters, the first is the data to query and the second is the term to be found. Remembering that it is necessary to use the wildcard operator “%” and surround the term by single quotation mark. Syntax: LIKE(< data>; <term>)Example: '''LIKE("Product"; '%anh%')''' - Returns true if the ''Product'' contains the term ''anh'' or false otherwise == Date Functions == Date functions are operations that take a date as a parameter and also return a date. There are some constants to assist in using date functions, they are: * 0: ''DATE_FIELD_YEAR'' (Part of the year)* 1: ''DATE_FIELD_MONTH'' (Month Part)* 2: ''DATE_FIELD_DAY'' (Daypart)* 3: ''DATE_FIELD_FORTNIGHT'' (Part of fortnight)* 5: ''DATE_FIELD_WEEK'' (Part of the Week)  ==== DATE_PART function (Date Part) ==== Returns part of a date. It needs two parameters, the first is the reference date and the second is the constant that represents which part of the date we want to get. Syntax: DATE_ PART(<date>; <constant representing which part>)Example: '''DATE_ PART("Issued Date"; 0)''' - Returns the year portion of the ''Issued Date''  ==== DAY_FROM_TODAY function (Days from today) ==== Returns a days count backward (negative) or forward (positive) from today. You need a parameter that indicates the number of days to add or subtract. Syntax: DAY_FROM_TODAY(<number of days>)Example: '''DAY_FROM_TODAY(-1)''' - Returns yesterday's date 

==== Abs ====Returns the absolute value first day of a base valuegrouping. SyntaxThis function has two variations: ''ABS(<expression>)''. Accept one parameter and process a numeric data type. '''Examples''': ABS(Gross Sale-Taxes);

==== Avg ====Returns * With two parameters, the average value of an array of values. Syntax: ''AVGfirst is the grouping constant from which we want to get the first date (<expression1>;<expression2>[;<expression3>;...;<expressionN>]see list above)''. Accept multiple parameter , and process a numeric data type. Can be used to return the average value of different columns from second is the same row of a tablebase date. '''Examples''': AVG(Taxes;Commissions;Costs);

==== Between ====Check if a value is within the boundaries of the parameters values. Syntax: ''BETWEEN FIRST_DAY_OF(<expression_to_test>;<expression_bottom_limitdate part>;<expression_top_limitbase date>)Examples: '''. Need three parameters FIRST_DAY_OF(of any data type, but the three must be from the same type0;DAY_FROM_TODAY(0)) and returns a boolean, ''true'' if value is inside - Returns the first day of the boundaries and ''false'' if not. year from today '''Examples''': BETWEENFIRST_DAY_OF(1;"Issue Date";'01/01/2013)';'31/12/2013'), BETWEEN("Gross Sales";- First Day of Month Based on '0';Issue Date'1000.00');Column

==== If then else ====Tests a boolean expression and returns a value in case it * With three parameters, the first is ''true'' and another in case it is ''false''. Syntax: ''IFthe grouping constant from which we want to get the first date (<expression_test>;<expression_for_true>;<expression_for_false>see list above)''. Need three parameters, a boolean for test the second is the date base modifier from today, and returns any data type, provided that both are from the same type. Useful for logic tests where two different executions expressions are neededthird is the amount to change the modifier. '''Examples''': IF("Branch"=='SOUTH';'South';'Other Branch') IF("Profit"==0;0;Profit+Taxes);

==== Log ====Returns the log value of a number on a set base. Syntax: ''LOG FIRST_DAY_OF(<expression_numberdate part>;<date modifier>[;<expression_basedate modifier value>])''. Minimum one parameter and maximum two. If just one parameters is given, the neperian log is returned. If the second parameter is also given, returns the log in the respective base. Example: '''ExamplesFIRST_DAY_OF(1;0;-1)''': LOG(Profit);- first day of current month of last year

==== Min LAST_DAY_OF function (Last day of) ====Returns the smaller value between two numbers. Syntax: ''MIN(<expression_value1>;<expression_value2>)''. Need two value parameters and returns a value data type. '''Examples''': "Total Value"/MIN("Quantity";"1");

==== Pow ====Returns the power value last day of a number on a set exponentdate grouping. Syntax: ''POW(<expression_number>[;<expression_exponent>])''. Minimum one parameter and maximum two. If the exponent value is not given, use This function has two (2) by defaultvariations. '''Examples''': POW(Value1)+POW(Value1-Value2;3);

==== Random ====Returns an aleatory number inside * With two parameters, the boundaries of first is the limit values. Syntax: ''RANDOMgrouping constant from which we want the last date (<expression_bottom_limit>;<expression_top_limit>see list above)''. Need two parameters, the bottom and the upper limit of second is the random number to be generated. '''Examples''': RANDOM(0base date.0;1.0);

==== Sqrt ====Syntax:Returns the square root of a value. LAST_DAY_OF(<date part>; <base date>) SyntaxExamples: '''SQRTLAST_DAY_OF(<expression>0;DAY_FROM_TODAY(0))''. Need one parameters, ' - Returns the last day of the value to be calculatedyear from today. '''ExamplesLAST_DAY_OF(1;"Date Issued")'''- Last day of month based on '': SQRT(Date Issued'36').column

==== Like ====Returns true if * With three parameters, the desired content first is found in the list and false if grouping constant from which we want the content is not found. Syntax: ''LIKElast date (<data_set>;<pattern>see list above)''. Needs two parameters, the first second is the set of data that will be queried. The second date base modifier from today, and the third is the term one wishes amount to find, in change the data set. Returns true or false. '''Examples''': LIKE("Product";'%ghe%'). Returns true if in the ''Product'' dataset there is some containing ''gue''. Otherwise, returns falsemodifier.

==== Constants list NEW_DATE function (New date) ====** '''0''': DATE_FIELD_YEAR (Year part);** '''1''': DATE_FIELD_MONTH (Month part);** '''2''': DATE_FIELD_DAY (Day part);** '''3''': DATE_FIELD_FORTNIGHT (Fortnight part);** '''5''': DATE_FIELD_WEEK (Week part);

==== Date part ====Return a part of a date. Syntax: ''DATE_PART NEW_DATE(<expression_dateday>;<constantmonth>;<year>)''. Need two parameters, the first is the reference date and the second the constant representing the desired part dateExample: 0, 1, 2, 3 or 5 (see above constants list). '''Examples''': NEW_DATE(1;4;DATE_PART("Order Issued Date";0) )''' - returns Creates the first April day of the year part of determined by the current row in the "Order ''Issued Date";'' column.

==== First day NUM_OF_DAYS function (Number of days) ====Return the first day of a grouping. This function have two variations:* '''First way''': Syntax: ''FIRST_DAY_OF(<constant_grouping>;<expression_date>)''. Need two parameters, the first is the constant grouping in which you want to obtain the first date: 0, 1, 2, 3 or 5 (see constants list) and the second is the anchor base date. '''Examples''': FIRST_DAY_OF(0;DAY_FROM_TODAY(0)) - first day of year (0) from today (DAY_FROM_TODAY(0)), FIRST_DAY_OF(1;"Order Date") - first day of month (1) based on the "Order Data";* '''Second way''': Syntax: ''FIRST_DAY_OF(<constant_grouping>;<constant_modify_date>;<modify_date_value>)''. Need three parameters, the first is the constant grouping in which you want to obtain the first date: 0, 1, 2, 3 or 5 (see constants list), the second is the modifier of the base date from today: 0, 1, 2, 3 or 5 (see constants list) and the third is the amount to change the modifier. '''Examples''': FIRST_DAY_OF(1;0;-1) - first day of the current month (1) from last year (0;-1);

==== Last day of ====Return Returns the last day number of a grouping. This function have days between two variations:* '''First way''': Syntax: ''LAST_DAY_OF(<constant_grouping>;<expression_date>)''dates. Need Therefore you need two parameters, the first is the constant grouping in which you want to obtain the last date: 0, 1, 2, 3 or 5 (see constants list) and the second is the anchor base datedates. '''Examples''': LAST_DAY_OF(0;DAY_FROM_TODAY(0)) - last day of year (0) from today (DAY_FROM_TODAY(0)), LAST_DAY_OF(1;"Order Date") - last day of month (1) based on the "Order Data";* '''Second way''': Syntax: ''LAST_DAY_OF(<constant_grouping>;<constant_modify_date>;<modify_date_value>)''. Need three parameters, the first is the constant grouping in which you want to obtain the last date: 0, 1, 2, 3 or 5 (see constants list), the second is the modifier of the base date from today: 0, 1, 2, 3 or 5 (see constants list) and the third is the amount to change the modifier. '''Examples''': LAST_DAY_OF(1;0;-1) - last day of the current month (1) from last year (0;-1);

==== New date ====Create an object from a day, month and year. Syntax: ''NEW_DATE NUM_OF_DAYS(<expression_daydate 1>;<expression_monthdate 2>)Examples: '''NUM_OF_DAYS(FIRST_DAY_OF(0;"Issued Date");<expression_year>"Issued Date")''. Need three parameters, ' - Returns the number of days from the first is a valid day number (1 to 31)of the year, based on the second for a month (1 ''Issued Date'' column, to 12) and the third is a year. The date is created from year to current day, therefore, based on the day must be valid for the month and the year (considering 29/02, year must be bissextile)same column. '''Examples''': NEW_DATENUM_OF_DAYS(FIRST_DAY_OF(1;4"Issued Date");DATE_PARTLAST_DAY_OF(1;"Order Issued Date";0)) ''' - create Returns the first day number of days of april from the year determined by month, based on the current row "Order ''Issued Date" '' column;.

==== Num NUM_OF_MONTHS function (Number of months ) ====Return the number of months between two dates. Syntax: ''NUM_OF_MONTHS(<expression_date1>;<expression_date2>)''. Need two date data type parameters. '''Examples''': NUM_OF_MONTHS(FIRST_DAY_OF(0;"Date");"Date") - Return the number of months between the first day of the year of the "Date" column and the current month of the "Date" column;

==== Previous date ====Return Returns the closest exact previous date given a day and monthnumber of months between two dates. Syntax: ''PREVIOUS_DATE(<expression_day>;<expression_month>)''. Need Therefore, two date parameters, the first is the day of month and the second the month. '''Examples''': PREVIOUS_DATE(1;4) - return the closest ''01/04'', in other words, until "01/04/current year", returns "01/04/last year", after that returns "01/04/current year"are required.

'''Important:''' The variables below must Given a day and a month, returns the last occurrence of that date. That is, if the current date (today) is less than the date passed by parameter (day / month), the return is the date (passed by parameter) of the previous year. Otherwise the return will be enclosed in double quotation marksthe current year date.

"@count" Syntax: PREVIOUS_DATE(<day>; <month>)Examples: '''PREVIOUS_DATE(15;12)''' - Total number of lines returned in a tableConsidering that today's date is 14/11/2019, the last time December 15th occurred relative to today's date was 15/12/2018, so this will be the return.

* '''"@count"''' - Total number of rows that were returned for the component.* '''"@row"''' - Current row number* '''"@sum[column]"''' - Sum of the indicated column.** Example: ''"@sum[Price]"'' - returns the sum of all rows in the ''Price'' column.* '''"@avg[column]"''' - Average column, similar to ''"@sum[column]"'' / ''"@count"''* '''"@prev[column]"''' - Row value before current row for this column* '''"@totalRowValue[column]"''' - Value of total row, (if present), from this column.* '''"@accumCol[column]" ''' - Current accumulated Cumulative value from column valueto current row. Useful to calculate Variable Avg (for calculating variable mean.** Example: ''"@accumCol[column]" '' / ''"@row")''