SAS calculates this value as the number of days that fall in 365-day years divided by 365 plus the number of. Recommended Reading. 選擇進階運算式->下一步. To know the interval between two dates in Years: data _null_;The SAS INTCK Function: Syntax. newdate=date-yrs; format newdate monyy7. CustDOB) format date09. = YEARFRAC("Jan 1 2007","Mar 1 2007") Use four-digit years whenever possible, to avoid getting unexpected results. The total payment for the Constant Payment Mortgage is 3,670,206. I need to remove duplicates with a condition on specimen_date. To calculate a person’s age, enter the start date and end date arguments followed by a. There are 31 days in March, therefore Days_in_Month = 31. PROC SQL; %DO k=1 %TO 50; CREATE TABLE NewTable&k. Lastly, we also touch on date constants , which are useful if you want to subset a dataset based on date values, or calculate a date variable based on a reference date. Function That Computes Dates of Standard Holidays 212 HOLIDAY 212 Functions That Work with Julian Dates 214 DATEJUL 214 JULDATE 215 . In addition, the option yrunit (ageact) will calculate the fractional part of the as a 365 th or 366 th. I have a data set (sample below). Merge two given maps, key-wise into a single map using a function. Note: This module should be installed from within Stata by typing "ssc install yrdif". V45B Dependent Variable teerq Covariance Structure Unstructured Subject Effect subjno Estimation Method REML Residual Variance Method None Fixed Effects SE Method Model-Based Degrees of Freedom Method. com - Manuel pour le langage de programmation SAS. Auto-call macros, some of them are type 1 (macros), and some – type 2 (macro. For more information about standard securities. Also the very useful Base SAS date functions such as intck and yrdif are not available. Table of Contents: The SQL Procedure. I really appreciate your generous help,this function named_struct solved my problem. The first two arguments, start-date and end-date , are required. The first argument is the Start Date, so this will be the column Date. On the other hand, it might not hurt to see the review of the YRDIF function, among other things. Missing if either date is missing. To convert it to a date use the DATEPART () function. The second argument is the End Date. 標準の証券計算方法の詳細については. Returns the geodetic distance between two ZIP code locations. . Step2. data temp; mydate = '02JAN2017'd; day=intnx ('day', mydate , 7); format mydate day date9. . This page is a complete repository of statistics tutorials which are useful for learning basic, intermediate, advanced Statistics and machine learning algorithms with SAS, R and Python. When I calculate using the yrdif function I get 12. If COL_C has a DATETIME value (number of seconds since 1960) then first convert it to a DATE value. 0). (333) In Stock. If the variable "looks like" 05OCT2009:00:00:00 and has a DATETIME20 format then the value should be the number of seconds since 1/1/1960. sql. I have added answers to exercise sums (chapters 7 to 15 - even number problems) for Ron Cody's Learning SAS by Example Programmer's Guide. To dev elop spa rk applications in Python, we will use PySpark. 6. Allen Buxton, 2020. ,19450,'AGE') at line 80 column 15. . Just count the number of months and divide by three. It supports a wide variety of customer-facing activities such as personalized marketing and next best action, and customer-impacting decisions including credit services and fraud prevention. It approximates the SAS function yrdif with basis 'ACTUAL' or 'AGE'. 1か月を30日または1年を360日として計算することもできます。. YRDIF function has been used to compute ages in this way: age = INT(YRDIF(birth-date, ending. And it is reading only when there's two spaces between the date values in the cards and if there's only one space it reads the second value as missing. In this implementation, YRDIF first determines the actual number of days between two dates. I am getting wrong output. The YRDIF function can compute a person’s age. YRDIF counts +1 for every 365 (or 360 or 366 days depending on the optional third argument you use, I don't know how the 30/360 work tho) SAS Base Programming (2022 Dec), Preparing for SAS Advanced Programming (Cancelled). If COL_C is a character string in the style YYYY-MM-DD then use the INPUT () function. First, I do have a variable, year of birth (i. Operating Environments. The decimal difference is explained by the handling of the leap years, as the documentation states: 'ACT/ACT' uses the actual number of days between dates in calculating the number of years. $45. 04. For example, in an datastep if I have a SAS variable defined as: AGE = YRDIF( birthdate, today(), 'ACTUAL'); but for some reason in my data the birthdate is missin. The INPUT Function is used to convert character variable to numeric. 0 として計算されます。 The YRDIF documentation is a bit sketchy. Output and Graphics. Regular type indicates the name of a component that is described in SQL Procedure Component Dictionary. Therefore ROUND (x, 100) rounds x to the nearest 100. Must be enclosed in single or double quotes. Learn. Java Version: Java 1. In other words, it returns the date value for 30APR1796. , so you INPUT with MMDDYY10 to get to a number, and then PUT to the format you like ( DATE9 ). is a numeric constant, variable, or expression with an integer value that specifies the position at which the search should start and the direction of the search. (date () - datepart (col_C)) as age_bucket. Functions and CALL Routines. (To convert the SAS date value to a calendar date, use any valid SAS date format, such as the DATE9. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. The informats for these two dates are different. The. ) I write this program but it does not work data ageyear;YRDIF Function. With the YRDIF function, you can also calculate a person’s age. Name the three date variables Date1, Date2, and Date3. You can use the following methods to round numbers in SAS: Method 1: Round to Nearest Integer. I understand there still is a discrepancy with the yrdif function but unless there are no other options with in. When I calculate using the yrdif function I get 12. (date () - datepart (col_C)) as age_bucket. ZIPCITYDISTANCE Function. date1 = year (date): Extracts the year component from the variable date. 9. The beauty of these functions is that they automatically handle leap years! If you request the number of days between two dates, the INTCK function includes leap days in the. 0). Posted 01-04-2021 05:26 PM (1057 views) | In reply to wheddingsjr. table, the newAge is the age of customer as of today using SAS function YRDIF (Birthday, today(), 'AGE'). 231-2019Getting Started with PROC DS2. Here's my code! When I run the code, I'm not getting any errors or results. SubscriberKey, Datepart(t1. The age computation takes into account leap years. g. Issue inputing sas date as datalines. If you are referencing tables in multiple DBs/Schemas then any not in the DB/Schema you include in the connection would need. Note that with column input, you must read the date of birth as a. Name the three date variables Date1,. 2) Using yrdif function we'll calculate the difference between date1, date2 and date3 variables. If the value of basis is AGE, then YRDIF computes the age. total_cohort_ person_years_age_2 = XX. regards . 基本; act/act基準を使用する計算; 人の年齢の計算; 会計アプリケーションでのyrdifの使用 基本. 2 Answers. , soLearn how to use SAS Enterprise Guide, a powerful graphical user interface for SAS programming and analysis. Should also be 4. Table of Contents Syntax Arguments Details Using YRDIF in Financial Applications Computing a Person’s Age Examples Example 1: Calculating a Difference in Years Based on Basis Example 2: Calculating a Person’s Age The DATDIF function has a specific meaning in the securities industry, and the method of calculation is not the same as the actual day count method. Client Authentication Using an Authinfo File. The YRDIF function can compute a person’s age. Topics include hypothesis testing, linear regression. This parameter is used to control how the actual day count is calculated - the default in the Excel yrfrac formula appears to be '30/360' whereas in SAS the default is 'AGE'. And copy/paste Code using the forum {i} menu icon. com. Dictionary of SAS DATA Step Statements. In YRDIF calculations that use the ACT/ACT basis, both a 365–day year and. ;It covers some of the most important modeling and prediction techniques, along with relevant applications. Moving and Accessing SAS Files. The first two arguments, start-date and end-date, are required. DATA Step Programming for CAS. @staticmethod def. PROC SQL; %DO k=1 %TO 50; CREATE TABLE NewTable&k. The YRDIF function can be used in calculating interest for fixed income securities when the third argument, basis, is present. specimen_Date :mmddyy10. N requires numeric arguments, whereas CMISS works with both numeric and character values. CAS Fundamentals. SAS Interface to Application Response Measurement (ARM) Security. 2 Using the SAS data set Hosp, use PROC PRINT to list observations for Subject values of 5, 100, 150, and 200. The age computation takes into. $egingroup$ Thanks so much for the answer, but with my little experience in python, I have not yet understood how to pass to the function all the lines of the 4 columns (loan_id, loan_amount, disburse-time, planned_time) of the loan_different_year dataframe. dates; input Subj $ DOB: ddmmyy10. The resulting quality of life data are stored in a permanent SAS data set called qul . SAS incorporates economic and credit risk factors to quantify the uncertainty around loan and fixed-income【免责声明：本文用于教学】 日期时间数据及数据格式 （一）SAS日期和时间数据 SAS将所有的日期转化成一个以1960年1月1日为起点的数值（日期数值）。比如：日期数值January 1, 19600January 1, 1959-365January 1,…First, I do have a variable, year of birth (i. Base SAS Utilities. X years etc, to age 99 . 0027 for biological purposes. The variables current1 and current2 are assigned the current date using the date( )and today( ) functions. SAS Interface to Application Response Measurement (ARM). 注意： 可以看到，length year month day $10;虽然规定了year month day的长度，但cats将多余的空格去掉了；而对于缺失的数据，仍然进行了拼接； catx函数 函数结构：catx(sep，str1, str2, str3,. 22 Lesson 4 Preparing Data The optional third argument in the YRDIF function is called the basis. g. act/act基準を使用するyrdif計算では、365日の年と366日の年の両方が考慮されます。たとえば、n365が365日の年の開始日から終了日までの日数と等しく、n366が366日の年の開始日から終了日までの日数と等しい場合、yrdif計算は yrdif=n365/365. DATEJUL( yyddd) returns the SAS date value when given the Julian date in yyddd or yyyyddd format. c. Visit the SAS documentation for the YRDIF function to learn about other values for. Using YRDIF in Financial Applications The Basics. Recommended Reading. I have an age variable and i need to recode it into categories. From SAS ®. First, we create a function colsInt and register it. Re: yrdif function : act/act vs age. INTNX(interval, start date, increment <, alignment>). Accessibility for Base. A Complete Guide to Python DateTime Functions. H…You can't insert a PROC FREQ in the middle of a DATA step. 19:08 – SAS Times Explored. Effective Reporting and Record-Keeping in Health and Social Care Services85810739. 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. the YRDIF function (new in version 8). 0 Likes 5 REPLIES 5. Tables of Perl Regular Expression (PRX) Metacharacters. The YRDIF function requires three arguments: the starting date of an interval; the ending date of an interval; the method to be used to calculate the interval. Table of Contents Syntax. For example, DATE = DATEJUL(99001); assigns the SAS date value '01JAN99'D to DATE, and DATE = DATEJUL(1999365); assigns the SAS date value '31DEC1999'D to DATE. In this lesson, we will investigate various aspects of processing dates and times within the SAS System. I’ve attempted the derivation using the following code but I’ve been unsuccessful. docx from BA 658 at Bellevue University. Fill in birth date for all missing records. Moving and Accessing SAS Files. . Inverse document frequency (IDF). The Basics. Dictionary of SAS Functions and CALL Routines. format. The INTCK function has three obligatory arguments and one options argument: interval: a character constant, variable, or expression (in lower or uppercase) that specifies your interval, e. This implementation supports filtering out terms which do not appear in a minimum number of. YRDIF returns the difference between two dates according to specified day count conventions. However. %let a = 10; %macro filter_age(age_start, age_end); %local today_; %let toda. SAS Viya. The standard formulation is used: idf = log((m + 1) / (d(t) + 1)), where m is the total number of documents and d(t) is the number of documents that contain term t. This can be done on a per row/case basis and then I can sum using proc sql, but I'm thinking there may be a simpler way to do this, as I said. It also provides the Pyspark shell for real-time data analysis. Dates before January 1, 1960 are negative numbers; dates after are positive numbers. The newly created variable new_x is in numeric format. data _null_; sdate='16oct1998'd; edate='16feb2003'd; y30360=yrdif(sdate, edate, '30/360'); yactact=yrdif(sdate, edate, 'ACT/ACT'); yact360=yrdif(sdate, edate, 'ACT/360'); yact365=yrdif(sdate, edate, 'ACT/365'); put y30360. a. Create a new variable that is only the substr function, what you're using in the input () function. Topics include basic SAS concepts such. CSS Function: Returns the corrected sum of squares. constraint-clause >>. I match merged 4 data sets into one. intck、intnx、datdif、yrdif関数を使用した、日付と日時の値と時間間隔 での計算の実行 sas 関数を使用した文字データから数値データへの変換、またはその逆の 変換 sasがデータタイプ間で値を変換するために使用する自動変換についての説明4) Many times when there are so many variables with indexed names such as Result, Test Sampledate and so on it indicates that the data structure may be incorrect. Meaning of yadirF. etc, to age 99. " Since age is the difference in years between two dates (a birth date and some other date), the YRDIF. sql. When i open the data. 16 #7. 11504. comYRDIF 209 . Scott, The month difference should be closer to 12. The first payment is optional and corresponds to a cost or payment that occurs at the beginning of the investment. In this video, you learn how to create a new column using the DATA step. You either need to include this information in your connection definition or in your SQL. leap day), YRDIF returns the correct age in years (age=4. For an adult study, all of these approaches in calculating Age seem to be ok. YRDIF Function. table, the newAge is the age of customer as of today using SAS function YRDIF (Birthday, today(), 'AGE'). data data1_; attrib BRTHDAT_ DTHDAT_ length=8 format=date9. B and C. YRDIF Function: Returns the difference in years between two dates. YYQ Function. Statment: Using column input, read NAME, GENDER, and DOB, where NAME is in columns 1-10, Gender is in column 12, and DOB is in columns 13-22. D) The two data sets must be sorted according to the. To show the total payment and the total interest, we use PROC REPORT to generate a summary table as Figure 2. For this to be today's Date, whatever the current date is when the program runs, use the TODAY function as the second argument. SAS Visual Analytics Programming Guide. Age calculation will automatically take care of any leap years. informat for date. Using intck will say there is 1 month interval between the two, so Month = 1; Temp is set to Date1 + Month, but to the same day, hence Temp = 09/03/2011. If you work in the industries that use those basis value frequently then they are helpful. FedSQL and System Options. YRDIF returns the difference between two dates according to. 8 A SAS function, YRDIF, is used to create new variables similar to those created in step #7. INTCK counts +1 every time it encounters 1 Jan. That can be costly. net dictionary. 1. SAS Servers. 4. You then apply a format to this number so it becomes human readable (=number prints as a date). 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. Lastly, we also touch on date constants, which are useful if you want. Whatʼs New. Here are some real-world examples of how the INTCK function is used in SAS. uses the actual number of days between dates in calculating the number of years. Pre-built macro functions that are part of the macro processor. < ADD <CONSTRAINT> constraint-clause <,. Tenure of an employee with company : The INTCK function is used to find out the number of months between date of joining and today's date. FedSQL. For example, DATE =. The functions that can be used to take apart date values include: ) returns the day of the month from a SAS date value (. YRDIF calculates the number of years between two dates, as a real number; hence, unless we round it, it will not show up as an integer. Dictionary of SAS Functions and CALL Routines. 11504. SAS® 9. SAS Web Report Studio. This PDF document provides an overview of the features, benefits, and capabilities of SAS Enterprise Guide, as well as examples and tutorials to help you get started. DATEJUL( yyddd) returns the SAS date value given the Julian date in yyddd or yyyyddd format. 13492785 2017 Jane North; 1000 78534520 2012 Tim South; 95020192756 2017 Linda East; 15000 19273458 2012 Paul West; 500078520192 2017 Mary Jane Doe; 5001 32278520 2012 Victor Smith;. Then run a proc freq on that. The YRDIF function can compute a person’s age. INTNX(interval, start date, increment <, alignment>). start-date: a Date or DateTime. Welcome to SC statistical Programming!The video is from our premium course SAS BASE certification prep courses for SAS Beginners (Part 1 - 4). Figure 1: Details of Constant Payment Mortgage payment. The beauty of these functions is that they automatically handle leap years! If you request the number of days between two dates, the INTCK function includes leap days in the result. The reference to the variable "age15b" below was because when I tested the YRDIF method for age15 below without the INT function, the age resolved to 19. A registered retirement income fund (RRIF) is an extension of your RRSP and the non-locked-in portion of your VRSP. Anyone know how to fix this? My Code: %let todaysDate = %sysfunc(today()) format date09. 2 and latter having no format YRDIF(start_date, DATE_OF_DATA, 'act/act') Current version: 9. | Next Page DATDIF Function Returns the number of days between two dates after computing the difference between the dates according to specified day count. data temp; x = '12345'; new_x = input (x,5. Thank you!! brth. ) returns a SAS date value from the given month (. set emp (keep=Manager_EMP_ID Employee_ID Salary); Then if you look at the data set option closely, it's a DROP. CV Function: Returns the coefficient of variation. 1 2015 Praxis Business School Vibeesh C S Solution for Even Numbered Problems For Chapters 7-15 from Learning SAS by Example - A Programmer’s Guide by Ron Cody. However, i didn't understand why the following function output with 'age' as '. The age computation takes into account leap years. Posted 08-30-2018 12:08 PM (619 views) | In reply to VarunD. Trying to use yrdif to calculate how old the datasets would be today but it won't output correctly in SAS. missing data after reading data lines. • Use the SORT Procedure to re-order observations in place or output to a new dataset. To round DOWN, you'll need to subtract off half of the rounding unit. how to use informats to read dates and times into a SAS data set. The YRDIF function can be used in calculating interest for fixed income securities when the third argument, basis, is. StateCd=Utah ZipCd=84604 GenderCd=Male EthCd=Non-Hispanic RaceCd=White EthRaceCd=NH White BirthDt=. Now in its fourth edition, The Little SAS Book is a classic, helping many people learn SAS programming. documentation. ; start-date: a. 0. Here is a complete list of the pre-built SAS macro functions. select temp. DATDIF関数は証券業界にとって特定の意味を持ち、その計算方法は実際の日数の数え方とは異なります。. 000. SAS calculates this value as the number of days that fall in 365-day years divided by 365 plus the number of days that fall in 366-day years divided by 366. sas. I have one variable called date_of_birth that is a numeric value with default length 8. Solved: Hello, I want to make the difference between date in year ( date format is mmddyy10. Auto-call macro functions. If I wanted to extract the date data from column 'First_date' format DDMMYY from table 'table_X' and comparing it to a certain date to get the number of months between these 2 dates, with no decimals. The first argument in udf. 3 to include a handy-dandy 'AGE' option. view-name indicates a SAS view of any type. The Clinical Data Interchange Standards Consortium (CDISC) is an open, non-profit organization that develops and supports global data standards to improve the quality and interoperability of medical research and healthcare. 3 Using round command for rounding them (values) along with yrdif function. SAS Viya Programming. NOTE: Invalid argument to function YRDIF( ,18189,'actual') at line 12378 column 30. Here, your characters are like MMDDYY10. SAS Viya on Microsoft Azure. If COL_C has a DATETIME value (number of seconds since 1960) then first convert it to a DATE value. sas. No other values for basis are valid when computing a person’s age. 4 releases continue to fully use multicore technologies to deliver increased processing capabilities through high-performance, in-database and in-memory analytics resulting in greater insights more quickly from big data and streaming data. . If the date represented in the second argument is to be included in the interval an extra day should be added. In other words, it returns the date value for 30APR1796. The CEIL function. JULDATE7 216 . The age computation takes into account leap years. 七天搞定SAS（一. 16 #3. There is also an article in SAS blog discussing this. " YRDIF: Stata module to calculate daily date differences ," Statistical Software Components S458732, Boston College Department of Economics. Table of Contents Syntax Required Arguments Optional Argument Details Using YRDIF in Financial Applications Computing a Person’s Age Examples Example 1: Calculating a Difference in Years Based on Basis In the following example, YRDIF returns the difference in years between two dates based on each of the options for basis. C) The two data sets must contain a common variable. Study with Quizlet and memorize flashcards containing terms like Which of the following statements correctly computes Age in years at time of visit, given DOB (date of birth) and VisitDate?, Which date format should be specified to have the date variable appear in the following form: 15Mar2001, True/False: SAS converts all dates to equal the. 2 examples of R syntax in this paper use a data frame. Sorting and Row-Wise Operations proc sort data=old_data out=new_data; by id descending income; run; new_data <-old_data %>% arrange( id, desc( income) ) proc sort. 2 shows recommended formats for common data sampling frequencies and shows how the date ’17OCT1991’D or the datetime value ’17OCT1991:14:45:32’DT is. CALERIE Phase 2 Data handling rules for RMR, TEE and AREE Residuals 4 The Mixed Procedure Model Information Data Set WORK. The INT function returns the integer portion of the argument (truncates the decimal portion). That said, AGE is not very granular, particularly for infants, where the time lapse between age 0 and age 1 can be as much as two years. 3. The following values for basis are valid: '30/360' specifies a 30-day month and a 360-day year, regardless of the actual number of calendar days in a month or year. Another hint: do NOT do this: data birth; set birth; If anything untoward happens in that step, you have trashed your dataset and must recreate it from where you started. 6 from Applied Statistics and the SAS Programming. If the value of basis is AGE, then YRDIF computes the age. Second, I would like to derive age from the stated variable based on today’s date. INTCK counts +1 every time it encounters 1 Jan. The statement. Method 2: Round to Specific Decimal Places. But the difference is more than one year, so we will use the YEARFRAC function in the C2 cell to get the full difference of a year. data HW. About This Book. please, in this case (and in all cases in the future), if there is a problem in the log, show us the ENTIRE log for this segment of code, every single line in the log for this segment of code, so we can see the code as it appears in the log, along. Handle: RePEc:boc:bocode:s458732. 7677488 etc. Matplotlib Tutorial : Learn by Examples. You either need to include this information in your connection definition or in your SQL. 2. The YRDIF function can be used in calculating interest for fixed income securities when the third argument, basis, is present. When the date is or. The simple way using 365. yrdif関数は開始日付から終了日付までの年数を計算するための関数です。 年数= YRDIF(開始SAS日付値,終了SAS日付値,表示形式) ; 両関数とも3番目の引数「表示形式」には、年・月の扱いを変更するための設定値を指定します。 Using YRDIF in Financial Applications The Basics. Exploring the yrdif and datdif functions in SAS as well as INTCK function: There are several ways to calculate the number of years between two dates and out of all the methods, YRDIF function results the most accurate value. With the YRDIF function, you can also calculate a person’s age. The age computation takes into account leap years. These are such macro functions as %eval, %length, %quote, %scan, %str, %sysfunc, %upcase, etc. 会計アプリケーションでのyrdifの使用. In summary, your job is to use the quality of life data to create the following. Usage Note 3036: YRDIF function returns unexpected results with partial leap year. Again, the YRDIF (Yrdif_fcn) function and 3 age formulas were programmed: the “standard calculation” (Std_age_calc); the adjusted calculation using the FLOOR function (Adj_form1); and the adjusted calculation using the INTCK function alone (Adj_form2). PROC SQL < option (s) >; ALTER TABLE table-name. data temp; x = '12345'; new_x = input (x,5. birthday of 02/29/1960, date of 02/27/1965: yrdif gives 4. that specifies how sas must interpret the character string, you will get a numeric number 22593. Computing ages with YRDIF The SAS Help and Documentation states that the YRDIF function "Returns the difference in years between two dates. I am calculating age difference between birthdate & today's date. sometimes birthdates such as full date(2000-12-12), only year+month(2000-12) or only year(2000) is available. Problem 9. I much appreciate anyone helps me with this concept. comBut the difference is more than one year, so we will use the YEARFRAC function in the C2 cell to get the full difference of a year. The option, yrunit (age), like the SAS function yrdif with basis 'AGE' calculates the. I am using the following procedure but it is giving syntax errors. 2. When I finish all my data manipulation, I want the output displayed as an 8-character date (ie 20150819). The result is a NUM variable. user_id,max(named_struct('opr_time',d. Consider voting for Add a HASH object method which would append a hash object to an existing SAS data set Would enabling PROC SORT to. Table 3. Method 2: Round to Specific Decimal Places. And it is reading only when there's two spaces between the date values in the cards and if there's only one space it reads the second value as missing. You can round a number up, round it down, or round it to the nearest integer. DATA DIFFERENCE; infile cards dlm=',' dsd; INPUT DATE1. serv_number,r. 8. Returns the geodetic distance between two ZIP code locations. DROP; KEEP; RETAIN; VAR; Both A or B; Both A, B or C; Solution: (E) Both DROP and KEEP can be used to limit the variables in the dataset. NOTE: - Returns the difference in years between two dates. Ultimately, I don't want to informat the same variable three different ways just so that I can use the yymmdd8. Enrichment Exercise Weeks 7 & 8 Joshua Wohleb The article “The Ultimate Guide to Data Cleaning”, written by Omar Elgabry. ; %END; QUIT; %mend; %sqlloop; [/pre] If you data are BIG, this will not be an efficient method as it will read the data 50 times - perhaps apply an index on MyDataSet on the variable MyVar to boot performance. (Note that each observation in the QUL data set corresponds to just one patient visit date. data temp; mydate = '02JAN2017'd; day=intnx ('day', mydate , 7); format mydate day date9.