INTCK is most often used to calculate complex date and time intervals - i. Given that the original question represented dates, using the HOURS interval with date values. ». The age computation takes into account leap years. These two functions complement each other: INTCK computes the difference between two dates, while INTNX enables you to add time units to a date value. Thus, at this article you will find few. DataFrame #. Divide 21 by 31 days will give you . Do you see in my output how Total_Sec is quite incorrect. in your example, following will be the statement: data want; set testing_weekdays; wkdays=intck('WEEKDAY1W',date_1,dat2_2); run; You can use different formats for Weekday interval. The INTCK function using the default discrete method counts the number of times the beginning of an interval is reached in moving from the first date to the second. Method 2: Round to Specific Decimal Places. to read the raw date values in. . ; input fname :$12. The INTCK () function allows last argument to be either C or D. Ask Question Asked 3 years, 2 months ago. intck(‘month’,birth,somedate) returns the number of times the first day of a month is passed between birthand somedate. The INPUT Function is used to convert character variable to numeric. Adj_form1=floor((intck(‘month’,dob,today)-(day(today)<day(dob)))/12); The FLOOR function in this formula will round down to the nearest whole number. The INTCK function is used to obtain the number of time intervals between two dates. This question is probably better suited for StackOverflow, as it is about programming not statistics. Sample. Then try the intck function for the difference. . The INTCK function returns the months between &start_dt and. DATA y; SET test; Minutes = INTCK('minute',start,end); PROC PRINT DATA=y; VAR Start End Minutes; WHERE mapinfoid<4; RUN; Obs Start End FTMinutes 1 31DEC01:22:00 01JAN02:02:00 240. You can use the following methods to round numbers in SAS: Method 1: Round to Nearest Integer. (c -continuous) INTCK METHOD Methods used are:The YEAR function produces a four-digit numeric value that represents the year. The INTNX function returns the SAS date value for the beginning date, time, or datetime value of the interval that you specify in the start–from argument. I used to do this with intck in SAS but lost all of my code and I can't remember how to get it right. Partial intervals are not counted. It will result in different output if the start_dt is the first of the month. The INTCK function counts the number of interval boundaries between two date values or between two datetime values. In addition the date values can also be aligned to start, mid or end of given interval. Datetime, time or date variables are just numeric values, with a format to show them as dates. Data Mylib. A string containing a formatted date representation cannot be implicitly evaluated to a SAS number, it would have to pass through input . No other values for basis are valid when computing a person’s age. By using multipliers and shift indexes, you can create multiples of intervals and shift their starting point to construct more complex interval specifications. I know how to do it and you can see the code below. Person Day 1 Release Date Sales Person Day 2 Release Date Sales. It does not count the number of complete intervals between two dates: Moving and Accessing SAS Files. For the YRDIF and 365. Base SAS. The INTNX function will compute an incremented date value, and allows the resultant interval alignment to be specified (in your case the 'end' of the month n-months hence) data have; format date_of_last_repricing end_date date9. For the period unit, you can choose years, months, weekly, life, and more. Thus, in this products you will find some. To find the difference in values of variable between observations just use the DIF () function (related to the LAG () function). It does not count the number of complete intervals between two dates: The function INTCK ('MONTH', '1jan2021'd, '31jan2021'd) returns. This result is returned because the interval from December 31, 2012, to January 1, 2013, contains the starting point for the YEAR interval. SAS Servers. Sep 22, 2015 at 17:21. ; 9 end; 10 run; dt=0 01JAN1960 dt=1 02JAN1960 dt=2 03JAN1960 dt=3 04JAN1960 dt=0. I want to calculate the month between 01FEB2021 and 31JAN2022, but even with the continous option the result is 11 month. You can use the INTCK function in SAS to quickly calculate the difference between two dates in SAS. Finding the first day of the previous month is an ideal situation for using the INTNX function. So you you need to reference the parameter value as &START_DATE, etc. MONTH intervals are counted by day 1 of each month, and YEAR intervals are. You can use the INTCK function in SAS to quickly calculate the difference between two dates in SAS. Remember the macro processor (the macro pre-processor) finishes its work before the resulting text is passed onto SAS itself to interpret. SAS/ETS® User's Guide documentation. The SAS INTCK Function: Examples. 1, and not 0. The function INTCK ('MONTH', '1feb2021'd, '31jan21'd) returns –1 because the first date is in a later discrete interval than the second date. For example: INTCK('MONTH','15MAR2018'd,11MAR2019'd) returns 12 even though the difference is less than 12 month (by 4 days). Difference between INTNX and INTCK functions. INTNX (timeUnit, startDate, numberOfUnits) This form of the INTNX function returns the first day of the specified time unit. Start_date and end_date are between two dates which we will be finding interval. Difference between INTNX and INTCK Functions. The INTCK and INTNX are the types of functions that are returned with a number of. The INTCK function counts intervals from fixed interval beginnings, not in multiples of an interval unit from the from value. I was wondering if any of the two methods below are appropriate and take care leap years as well. ; format TS datetime20. Team, I am needing to add business days to a date column ( Order_Date ) which should exclude weekends & holidays while adding the business days and the desired output should be date column. notedate :$11. In other words, it returns the date value for 30APR1796. , date and time intervals that don't have a direct proportional relationship to the base date or time units (days and seconds, respectively). Interval – can be in minutes, seconds, hours,weeks, days, months,quarter and year Start_date and end_date are between two dates which we will be finding interval; So we will be using EMP_DET Table in our example. 05 -2 28. Ah. . I need to do further task and I don;t know how to do it. The following code should work: AGE = INTCK ('YEAR',DOB,TODAY (),'C'); See here for. ) The following example shows how to determine the date of the start of the week. 3, because 0. Details . Appointment Expiration date isn't a date as you convert it earlier 0 LikesRe: intck function will not get my desired result. 11 from Combining and Modifying SAS Data Sets - Examples. The INTCK function returns the integer count of the number of intervals in years, months or days between two dates. The INTNX () function is used to loop through dates based on an offset. Jim Barbour on February 24, 2016 9:44 am. SAS : INTCK Function with Examples - Example 11: Loop through Dates Using a Macro. --. The form of the function is as follows: INTCK(‘<measured duration>’ , <DATEA>, <DATEB>); For example, if you wanted to measure the days that occurred between variable DATEA and DATEB, the. The INTNX function increments (either. More specifically, it cares whether the value is a datetime value or a date value. It can be year, month, week, or weekday. . on the hour), but rather the boundary. You can use the INTCK function in SAS to quickly calculate the difference between two dates in SAS. The INTCK function calculates the difference between two dates or times, whereas the INTNX function adds days or times to a date. This was not a stated requirement of the original problem. Viewed 3k times. Re: Why Is INTCK Slower Than INTNX in SQL? intnxintckintnx was faster than intck. COALESCE accepts one or more numeric arguments. By default, Sunday is the beginning of the week interval. import pyspark. Anniv = intnx ('year', '30APR1789'd, 7, 'same'); returns the 7th anniversary of the date 30APR1789. You can also advance a date/time using the INTNX function. SELECT A. For example, you can use the INTNX function till compute the date that remains 308 epoch in that future from a. SAS Tutorial For Beginners Date and Time Functions in SAS Date Functions with Use Case SAS Programming Tutorial For Beginners Functions in SAS INTCK Function. 1. 3 is not an exact multiple of one tenth in binary. Improve this answer. The intck function can return a negative value if the second value is less than the first. e. 24619: Determine the week number of the year. The INTNX function increments a date, time, or datetime value by intervals such as DAY, WEEK, QTR, and MINUTE, or a custom interval that you define. ;intck most certainly can deal with variables -- in fact it deals with any expression that evaluates (implicitly or explicitly) to a number. First if you have macro parameters then they will be macro variables and not data step variables. ; datalines; 188 18Jul17:15:27:00 97 188. NOTE: Mathematical operations could not be performed during %SYSFUNC function execution. I believe this happens because the alignment option in the INTCK function defaults to DISCRETE, which counts interval boundaries in between two dates, rather than CONTINUOUS, which counts full intervals in between dates, shifted to the start date. The time unit can be selected in years, months, weeks, days, or whatever you feel like. 25 methods, age is computed both as a decimal and an integer value. Note: This is Example 6. SAS 区间函数 INTNX 和 INTCK. Interval – can be in minutes, seconds, hours,weeks, days, months,quarter and year Start_date and end_date are between two dates which we will be finding interval; So we will be using EMP_DET Table in our example. The INTCK function counts intervals by using a fixed starting point for the interval as opposed to counting in multiples of the interval unit. The INTCK Function is second to calculate the difference amidst two dates and times. Hello. sas. How is SAS supposed to know if should be a text value of 'INTNX' or if you want to use it as a function? To differentiate, everything is interpreted as text unless you specify otherwise. About. 1. DATA Step Programming. If you accessed TD via a LIBNAME engine, INTCK would work, as the function would be invoked on the SAS' side after having the TD date translated into the SAS date. ) returns the month from a SAS date value (. is a character constant or variable that contains an interval name. If the string is not found in source, INDEX returns a value of 0. comDon't use INTCK(). ) returns the year from a SAS date value (. It rounds off to the complete year i. DATETIME values are seconds. First point - most other systems I've used use a base-dating system, whether it be 1Jan1960, 1Jan1901 or similar, and allow day arithmetic. Use them with the INTCK and INTNX functions and with procedures that support numbered lists (such as the PLOT procedure). (start_dt) Parameter 3 is the end date. The INTNX function returns the SAS date value for the. (INTCK returns a negative value whenever the first date is. from. The string needs to be something the DATE informat can interpret. SAS is headed back to Vegas for an AI and analytics experience like no other! Whether you're an executive, manager, end user or SAS partner, SAS Innovate is designed for everyone on your team. Assume I have 2 timestamp. Instead of adding just one interval, you can use the increment argument also to add multiple intervals to a. . In a DATA step, if the SUBSTR (right of =) function returns a value to a variable that has not previously been assigned a length, then that variable is given the length of the first argument. I am having hard time getting the INTCK function to return the result i am using the following query. Total_days = intck ('dtday',begin_date,end_date); may be what you are looking for. I was using INTCK to do this. current_year = year (date ());NOTE: Invalid argument to function DATDIF(19996,19774,'30/act') at line 92 column 19. In this SAS tutorial, we will show you how to learn SAS programming on your own. When the selected interval is 'year' it returns an integer number of years. wrote: Hello and thanks for the quick response. . The intck function works on date values, which are numeric. The variables current1 and current2 are assigned the current date using the date( )and today( ) functions. This function uses the following basic syntax: INTCK(interval, start date, end data, method) where: interval: Interval to calculate (day, week, month, year, etc. Example 3: Using Custom Intervals with the INTCK Function. Converting SAS PROC SQL to SQLITE queries in python - SAS intck function. in this case i need data from Jan 2019 to jun 2019, that is 6 months before run date specified above. . Is there a way I could return only the number of pull months between 2. It does not count the number of complete intervals between two dates: The following example returns 0, because the two dates are within the same month. 3. Here's my code: DATA newdata; SET olddata; newvariable = INTNX ('month',olddate,0,"B"); RUN; The log says: Argument 2 to function INTNX is invalid. INTCYCLE( 'interval' ) returns the interval of the seasonal cycle, given a date, time, or datetime interval. SAS tem uma grande variedade de funções integradas que ajudam na análise e processamento dos dados. (To convert the SAS date value to a calendar date, use any valid SAS date format, such as the DATE9. In this case, my preferred solution would involve using an R version of SAS' INTCK function to do dates arithmetic in a more sophisticated way than described in my original example. However, the numbers remain the same and as you can see, I'm still getting date values in the activity_date field that are more than 14 days after the send date (2/1). Then print variables from that data set. The increment is based on a starting date, time, or datetime value, and on the number of time intervals that you specify. left join to the master table for the months i need to check against. The newly created variable new_x is in numeric format. The INTCK function returns the number of time units between dates. “day” or “month”. These two functions supplements apiece other: INTCK computes the difference intermediate two dates, while. So that we can call and refer to the INTCK as INTerval ChecK, everyone knows the INTCK function, which helps to return the integer count of the. この関数は次の基本構文を使用します。 INTCK (間隔、開始日、終了データ、メソッド) 金： 間隔: 計算する間隔 (日、週、月、四半期、年など); 開始日: 開始日; 終了日: 終了日; method: 離散または連続方法を使用して. Maxim 1: read the documentation. Besides the INTCK function, we. . date1 = day (date): Returns the day of month from the variable date. Because start_dt - 1 will fall in previous month and will add '1' to the result of intck. No matter how many actual days are between them, I need the difference in month. comThe INTCK function returns the number of intervals between two date values. Although there are other intervals available, the most commonly used intervals include 'day',. If you are performing a calculation such as age, or tenure, then be sure to use the 'continuous' parameter of intck(). Using the INTNX and INTCK functions to determine the week number of each week in the month. Eles pegam as variáveis de dados como argumentos e retornam o resultado que é armazenado em outra variável. intnx関数について基本の話. *,B. The INTCK function returns the number of time units between dates. Tutorial : INTCK Function Explained 44. There are -3 days between Temp and Date2, hence Days_Shift = -3. Difference Between two dates using INTCK function in SAS: difference between two dates in days, weeks, months & year in SAS. sas. The INTCK function counts the number of interval boundaries between two date values or between two datetime values. data _null_; sdate="12mar1998"d; edate="12jun2008"d; years=intck(‘year’,sdate,edate); put years; run; output:10 years To know the interval between 2 dates in days:. Renaming date variable to perform an intck to calculate day difference. You can create multiples of the intervals and shift their starting point. SAS tracks dates as the number of days since January 1st, 1960. . In this example, the first statement converts the values of cc , a numeric variable, into the four-character hexadecimal format, and the second statement writes the same value that the PUT function returns. I understand there still is a discrepancy with the yrdif function but unless there are no other options with intck to get a decimal the yrdif might be my only option. INTCK: week 2 01aug60. 1 Answer. Note: The INTCK function returns the integer number of time intervals in a given time span. The WHERE statement applies to all data sets in the preceding SET, MERGE, MODIFY, or UPDATE statement, and variables that are used in the WHERE statement must appear in all of those data sets. proc sql; CREATE TABLE SASAVE. SAS provides date, time, and datetime intervals for counting different periods of elapsed time. For the INTCK function, there is also a pair of arguments to deal with the analogous problem of specifying a user-desired alignment of the DTHOUR boundaries. In common coding parlance, you can refer to INTNX as an interval check and INTCK as an interval next function. . The intervals involving the date portion of a datetime variable in the Intnx or Intck functions start with DT, such as Dtday, Dtmonth, Dtquarter, Dtweek, Dtyear. For example, WEEK intervals are determined by the number ofThe INTNX (and its sister function for computing date differences, INTCK) are powerful tools for manipulating date and datetime values. The INTCK Function your utilised to calculate the difference between two dates and times. The INTCK function comes with arguments and argument-modifiers to enable us to perform variety of date related manipulations. Working with User-Defined Formats. . ) Difference between INTNX and INTCK functions. (Note: this article originally appearing on sasCommunity. org, written by Sieger Popovich. It does the same as the Teradata EXTRACT function with the DAY keyword. sas. ちなみに同じ結果を返す他の計算式として、以下2つ. If you want to know how to add days, weeks, months, etc. I'm using SAS with SQL procedures. time; run; ThanksView the latest Intel Corp. I had already tried INTCK. The difference between these two dates is 10 days but just because the month has changed from March to April, the INTCK function (with discrete method) considers the difference between them to be 1 month. dob, doe); RUN; Right now if I had the date Oct 1, 2007 and Nov 15, 2011 it gives me 49 months I want it to give me 49. The days are numbered as Sunday(1) . start1=input (start,yymmdd8. When dealing with months, it measures the number of "1st of the month" dates within the interval. lastDaylastMonth=day (intnx ('month', current_date, -1, 'E')); INTNX Function in SAS to Calculate The Last Day of The Last Month. Method 1: Age = INTCK ('year',dob,graduationdate,"C") Method 2: Age= (graduationdate-dob)/365. couldn't tell if you needed to convert date_1 and date_2 from character to numeric (dates). . . can be specified either as a variable name or as a SAS date constant. INTNX () is basically used to get the future or back dated date with a gap of given specific intervals like MONTH, WEEK, YEAR etc. However, it simply produces an error: options intervalds=(wdays=wrkdays); data wrkdays (keep=begin end); format begin end date9. The INTCK Function is used for figure of difference betw two dates and times. However, the sas functions such as INPUT, PUT, INTCK etc do not work inside the CONNECT TO TERADATA sql query. The form of the INTCK function is. The INTNX function returns the SAS date value for the beginning date, time, or datetime value of the interval that you specify in the start-from argument. 1 Answer. The INTCK function in SAS is used to calculate the number of intervals between two dates or times. The COALESCE function checks the value of each argument in the order in which they are listed and returns the first non-missing value. Date1: 09/02/2011. Difference between two dates in year in SAS – Method 1: complete year – rounding off year. new_num=input (character-variable, 4. The first argument of the intck( ) function, which must appear in single quotes, tells SAS what time interval you are interested in counting. i tried the code below : data eail ; infile cards dlm='09'x truncover ; input NO 1-2 Code $ Stn_Name: $25. One of the ones I am running into is the SAS SQL is using a condtional statement in a make. Difference between two dates in year is accomplished using INTCK function with ‘year’ as argument as shown below. (INTCK returns a negative value whenever the first date is later than the second date and the two dates are not in the same discrete interval. 1. Hello, This code has worked for me in the past, but not today. 結果データセット「AGE2」. data temp; x = '12345'; new_x = input (x,5. The ROUND function is the same as the ROUNDE function except when the first argument is halfway between the two nearest multiples of the second argument, ROUNDE returns an even multiple. '. A data step seems significantly easier here IMO using CALL SYMPUTX (). Make your decision as to what you need to do! Also, here are some additional resources that may be helpful if you want to truly understand what is going on underneath the hood. 1. 11 = 4-YEAR intervals starting on November. Artificial Intelligence. sas. len_in_mths = intck(‘month’,start_dt,end_dt,’c’); INTCK PARAMETERS What do the parameters for intck in the above example mean. The increment is based on a starting date, time, or datetime value, and on the number of time intervals that you specify. end date: Ending SAS date. This means that YRS would have been 29 for any DOB in 1975 as well as for any second date in 2004. So we will be using EMP_DET Table in. value_dt) < today ();. It does not count the number of complete intervals between two dates: The following example returns 0, because the two dates are within the same month. For the INTCK method, age is computed only as an integer. 03 -5 15 0. Second you can use the %SYSFUNC() macro function to call the INTCK() function in macro code. Parameter 1 is the interval. - SAS Help CenterContents Chapter 1 / Introduction to SAS Enterprise Guide . Dictionary of Component Object Language Elements. January 2, 2017 to January 30, 2017 ==> INTCK returns 0, since there are no "1st of the month" dates within the interval. ); start date: The start date; end date: The end date; method: Count. diff_months_cont = intck ('month', mydate1, mydate2, 'C'); run; If you set the method argument equal to ‘C’ when you calculate the difference in months, SAS calculates the number of complete months between two dates. If you want to convert the text value 20150301 to the text value 20148 (This is the SAS date of March 1, 2015), you can use the INPUTN function. The INTCK function works both with time variables and datetime variables. The intck function can return a negative value if the second value is less than the first. Question eg: INTCK('QTR',FIN_YR,CNT_DATE)+5 What would provide me with the same answer in a SQL-Netzza code. The function INTCK ('MONTH', '1feb2021'd, '31jan2021'd) returns –1 because the first date is in a later discrete interval than the second date. The sample code on the Full Code tab illustrates how to determine the exact number of years, months, and days between two SAS date values. 9. These functions are crucial for prediction, scheduling, trend analysis, and reporting. This function uses the following basic syntax: INTCK(interval, start date, end data, method) where: interval: Interval to calculate (day, week, month, year, etc. ”We would like to show you a description here but the site won’t allow us. Once you convert the date, you can find the number of days between the two dates with the INTCK function, and then subset the table appropriately. Hello everyone, I am working with a dataset and carried out difference in recorded dates using the intck function as below: dif = intck ('day’, startdate, enddate, 'DISCRETE'); The sample result is shown below: dif frequency percent -6 18 0. 01jan60. options intervalds= (BankingDays=BankDayDS); data BankDayDS (keep=begin); start = '15DEC1998'd; stop = '15JAN2002'd; nwkdays = intck ('weekday',start,stop); do i = 0 to nwkdays; begin = intnx. 2 Language. When I try to run the %let monthdiff=%sysfunc(INTCK(MONTH,date1,&lastdate)) line, I get the ERROR: Argument 2 to function INTCK referenced by the %SYSFUNC or %QSYSFUNC macro function is not a number and then ERROR: Invalid arguments detected in %SYSCALL, %SYSFUNC, or. Re: How to extract a timestamp with one hour interval. Note: The INTCK function returns the integer number of time intervals in a given time span. Could you please help me correct the code? Thanks in advance. ; run; proc print data=b; run; You're using the today function. More specifically, it cares whether the value is a datetime value or a date value. ) If you prefer to learn by watching (while listening. The INTCK() function can also count backwards: when end-of-period is a date prior to start-of-period, the INTCK() function will return a negative number. The INTCK function using the default discrete method counts the number of times the beginning of an interval is reached in moving from the first date to the second. Given that the original question represented dates, using the HOURS interval with date values. Metadata. 1 Answer. g. PG. SAS INTCK ( ) function is one of the important date functions in SAS. Let's run a little test. For Instance No of Months between 1st July 2018 and. Your then filtering based on anndats, only selecting records where b anndats value is less than a anndats or b. Saturday(7). /*Comparing different ways of computing age*/. For more information on the INTCK and INTNX functions, see INTCK and INTNX: Two essential functions for computing intervals between dates in SAS, an article by @Rick_SAS. Basically, l am calculating the number of days from the 10th of each month to the 10 of the next month, where weekdays plus saturdays are considered as. This function uses the following basic syntax: INTCK(interval, start date, end data, method) where: interval: Interval to calculate (day, week, month, quarter, year, etc. 3 SAS Date and Date/Time variables In order to properly use SAS date and datetime variables, you first have to determine in a variables is: Numeric or CharacterThe first part of the code uses the intck function to calculate the number of times a 'month boundary' (e. ); Example -. For the INTCK method, age is computed only as an integer. There is an enormous difference between days since 1/1/60, and seconds since midnight, 1/1/60. Re: INTCK Function and Rounding. It's joining two datasets using the amaskcd field as the key. data new_data; set original_data; new_value = round (value); run; . The function INTCK ('MONTH','31jan1991'd,'1feb1991’d) returns 1, because the two dates lie in different months that are one month apart. Thanks a lot for your reaction! What I try to accomplish is the following: I have a dataset that has monthly observations for the following variables from CRSP (i. 25 methods, age is computed both as a decimal and an integer value. vectorize(intck_month)(df["obs"], df["out"]) Runtime. 1); /*round to 1 decimal place*/ new_value2 = round (value,. The INTCK function using the default discrete method counts the number of times the beginning of an interval is reached in moving from the first date to the second. ); run; In the above example, the variable x is a character variable as it is defined in quotes '12345'. You need to apply a format to the date value so it displays properly. ①結果自体は、SASテクニカルサポート「年齢の計算方法」にあるやつと同じになる。. nmonths=intck('month',date1-1,date2-1); Just subtract 1 day less than the month starting day from both dates. For example, if you are using the INTCK function to count the months between two dates, regardless of the actual day of the month specified by the date in the beginning value, SAS treats it as the first of that month. Data set example: Subject_ID Date Obs 10 01/02/21 1 10 01/. I have both these variables, but I am unable to figure out a proper syntax to get the de. options intervalds= (BankingDays=BankDayDS); data BankDayDS (keep=BEGIN); start = '15DEC1998'D;WEEKDAY<daysW> in INTCK Function: The INTCK function in SAS returns the number of interval boundaries that lie between two SAS dates, times, or timestamp values. Timestamp ('2019-07-15') mydate2=pd. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. More specifically, it cares whether the value is a datetime value or a date value. You cannot use the WHERE statement with the POINT= option in the SET and MODIFY statements. 前回、intck関数とintervaldsのコンボを紹介したので、次はintnx関数とintervaldsのコンボをやろうと思うのですが、まずintnx関数を使ったことない方も多いと思うので、基本を紹介します。. Rather than asking for an R function equivalent to some SAS function, it sounds like you're just interested in computing the number of weeks. You can use this function to calculate the number of days, weeks, months. len_in_mths = intck(‘month’,start_dt,end_dt,’c’); INTCK PARAMETERS What do the parameters for intck in the above example mean. Whether you're a beginner or an advanced user, this tutorial offers a hands-on approach. Otherwise, fairly self-explanatory! Let's take a look at an example. So, I've created a flag that says if Release Date = Day 1, then flag = 1 else flag = 0. SAS software treats the year 2000 like any other leap year. You will get better and faster answers when you specify the entire set of requirements in your original question. Example This program computes age using each of these methods (YRDIF, dividing by 365. Or create a second data step to read the data back in and run your age calculations. ; informat date_of_last_repricing end_date date9. An Introduction to SAS Viya Programming for SAS 9 Programmers. . No problem. intck() returns the number of interval boundaries. Sample 41732: Determine the week number of a month. The function INTCK ('MONTH', '1feb2013'd, '31jan2013'd) returns –1 because the first date is in a later discrete interval than the second date.