Here's how YRDIF works (and I got this from an internal doc written by the developer, who apparently fields questions from leap-year-pedants all of. Using either the DATDIF() or YRDIF() functions with datetime values as the arguments to the function might cause aD) data directory; set faculty; run; B) data directory; set faculty staff; run; What must be true before two data sets can be merged in SAS using a by statement? A) The two data sets must be in the same library. One data set had a Birth Date variable and another data set had a Visit Date variable. e. Conditionally execute SAS statements. 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。YRDIF Function: Returns the difference in years between two dates. " YRDIF: Stata module to calculate daily date differences ," Statistical Software Components S458732, Boston College Department of Economics. ②「yrdif関数」の「age」オプションを使ったやり方。 「AGE」オプションは人の年齢を計算できるオプションで、SAS9. ZIPCITYDISTANCE Function. In YRDIF calculations that use the ACT/ACT basis, both a 365–day year and 366–day year are taken into account. - With all due respect if you think your SAS training course content should align exactly with real world usefulness then I think you are bound to beView Code_ Group12_Ws4. 6. sas. Include only the following variables in the new data se t: Customer_Name, Birth_Date, Birth_DOW, and Age. Learn. Re: yrdif function : act/act vs age. If. Dictionary of SAS Functions and CALL Routines. If the value of basis is AGE, then YRDIF computes the age. Allen Buxton, 2020. The age computation takes into account leap years. DS2 Hash and Hash Iterator Package Attributes, Methods, Operators, and StatementsIntroduction. Noone is going to retype code from a picture to test the results. SAS Viya Platform System Programming Guide. Includes unlimited streaming via the free Bandcamp app, plus high-quality. Here is a complete list of the pre-built SAS macro functions. 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. etc, to age 99. I think you intended to apply the INT function to the entire computed value, so you need to move a paren: MAT_AGE = int( (new_DOB - new_MomDOB) /365. Regular type indicates the name of a component that is described in SQL Procedure Component Dictionary. floor(YRDIF(birthDate, today(),"AGE")) is another way to get the current age in years. . EUCLID Function This will calculate the difference between two dates yielding the difference in years. However I cannot explain it. Since the DATDIF and YRDIF involve some standard basis values used in specific financial calculations. YRDIF function has been used to compute ages in this way: age = INT(YRDIF(birth-date, ending. PGStats. . data _null_;. You can get your expected result by setting the third parameter to the yrdif function (basis) to '30/360'. ; %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. data _null_; sdate='16oct1998'd; edate='16feb2010'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. Manage Data Sort observations in a SAS data set. CSS Function: Returns the corrected sum of squares. total_cohort_ person_years_age_1 = XX. d. Otherwise you have to write code that simulates the effect and from a certain amount of experience many people will miss something related to leap years. However I cannot explain it. However. No other values for basis are valid when computing a person’s age. ;It covers some of the most important modeling and prediction techniques, along with relevant applications. The documentation from SAS on the YRDIF function indicates to use the 'AGE' parameter rather than actual: I created a macro function to calculated age between two date and filtered data with specific time interval. Studies suggest that the prevalence of eye diseases and vision. 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. After merging all 4 I then had to create a new variable that shows what age the person. view-name indicates a SAS view of any type. For example, DATE =. Issue inputing sas date as datalines. 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. However, in using it, I noticed that when calculating date spans ranging from Jan. specifies a series of cash flows that corresponds to a schedule of payments in dates. 8,2)=4, 将4. Description. 6. The start_date is the first argument, so select “Date 1” as the cell reference, A2 cell. SAS Software for Learning Community. INTNX ( interval, from, n < , alignment >) ; o interval - interval name eg: 'MONTH', 'DAY', 'YEAR‘ , etc o from - a SAS date value (for date intervals) or datetime. informat for date. 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. Datdif and yrdif functions the datdif and yrdif. Syntax: ageinyrs = YRDIF(birthdate, enddate, ' act/act '); ag_indays = DATDIF(birthdate, enddate, ' act/act ');If I have a dataset structure like this, how can I code to determine the rate = visits/person years? ID Total number of Visits Start Date End date 1 15 Jan21,2002 April4,2008 2 4 Feb6,1991 June8,2015 3 7 June9,1999 July5,2000七天搞定SAS（六）：宏的编写、程序调错. I'm not sure what I did wrong. Cette valeur permet d'indiquer d'utiliser le nombre actuel de jours entre les dates dans le calcul du nombre d'années en divisant le nombre de jours en 365 par année. If your data contain both positive and negative values, you can also round numbers toward zero, or away from zero. If the value of basis is AGE, then YRDIF computes the age. user_id,max(named_struct('opr_time',d. d. SAS Customer Recognition Awards (2023) SAS Community Library. 3 Using round command for rounding them (values) along with yrdif function. 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. . Operating Environments. Re: Converting SQL code into SAS code. 第1個引數是開始日，所以我們要輸入出生日，從左下方的函數和變數的選擇區塊中點選. " Since age is the difference in years between two dates (a birth date and some other date), the YRDIF function has been used to compute ages in this way: age = INT(YRDIF(birth-date, ending-date,'ACTUAL')); 'ACT/ACT' uses the actual number of days between dates in calculating the number of years. Moreover, tumor growth in xenograft was significantly inhibited by MIR155HG knockdown in vivo. table, the newAge is the age of customer as of today using SAS function YRDIF (Birthday, today(), 'AGE'). sas /* Group 12 Mahima Devendrabhai Chhagani ID:143220200 Ekta Narendrabhai1. 6 from Applied Statistics and the SAS Programming. 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. 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. leap day), YRDIF returns the correct age in years (age=4. It is over 5000 char. In contrast, the INTCK function counts the number of interval boundaries (here yearSAS Certification Part 13 DATDIF & YRDIFDATDIF FunctionDATDIF Function Returns the number of days between two dates after computing the difference between t. For instance, you can use YEARFRAC to identify the proportion of a whole year's benefits, or. LEFT returns an argument with leading blanks moved to the end of the value. The YRDIF function can compute a person’s age. FedSQL Expressions and Predicates. 22 Lesson 4 Preparing Data The optional third argument in the YRDIF function is called the basis. It magisch be better to use either aforementioned YRDIF era by any decimal. 7677488. AAGE Derived: YRDIF(BRTHDT, RANDDT, ‘AGE’). So, although 22JUN2020 and 20JUL2020 belong to different months, the number of completed months between these. At least one argument is required. 2. Calculations can use months and years that contain the actual number of days. The SAS code is as follows: Data Null; Both dif and yrdif _func give the same result up to 6 digits after the comma in the example above. Missing if either date is missing. Client Authentication Using an Authinfo File. SAS Web Report Studio. To get today's date in SAS, you can either the today() or date() functions. 10 We would like to show you a description here but the site won’t allow us. Additionally, SRSF1 was identified as the binding protein of MIR155HG. txt header in picture. 0). The YRDIF function can be used in calculating interest for fixed income securities when the third argument, basis, is present. 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. SAS Interface to Application Response Measurement (ARM). SAS® Viya™ 3. 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). About This Book. sas. The appropriate format to use for SAS date or datetime valued ID variables depends on the sampling frequency or periodicity of the time series. DATE() returns today’s date as a SAS date value. 4 Step 3: Recode Data Type and Informats Data can be in different forms and the flat files may be generated by other software, e. Second, I would like to derive age from the stated variable based on today’s date. . Each line of data contains three dates, the first two in the form mm/dd/yyyy descenders and the last in the form ddmmmyyyy. X years total_cohort_ person_years_age_2 = XX. Data myage; set suvdata; AGE=floor(YRDIF(RB08. ) I write this program but it does not work data ageyear; documentation. Accessibility for Base. 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. When i open the data. As would be generally appropriate, the YRDIF function does not include the last day of the interval (the date of the second argument) when counting the total number of days. 実際の日数を含む月と年を計算に使用できます。. YRDIF: Stata module to calculate daily date differences. data _null_; sdate='16oct1998'd; edate='16feb2003'd;. We would like to show you a description here but the site won’t allow us. The first two arguments, start-date and end-date , are required. Macro Language Reference. Go and check out all the styles for more fun! Urdif Name. 1. And copy/paste Code using the forum {i} menu icon. Streaming Analytics. Topics include hypothesis testing, linear regression. First date of study was 1/1/2005,. libname bsta445 "C:445Course_data"; data dates; infile "C:445Course_datadates. Step4. The. Do it in plain SQL. The FIND function searches string for the first occurrence of the specified substring, and returns the position of that substring. SAS calculates this value as the number of days that fall in 365-day years divided by 365 plus the number of. SAS Interface to Application Response Measurement (ARM) Security. 2. As per SAS documentation "The YRDIF function can compute a person’s age. PROC SQL < option (s) >; ALTER TABLE table-name. If the value of basis is AGE, then YRDIF computes the age. MDY(10/15/15);, Select the proper syntax to. Here's my code! When I run the code, I'm not getting any errors or results. On the other hand, it might not hurt to see the review of the YRDIF function, among other things. The following example returns the fraction of a year represented by the difference between the dates, January 1 and March 1: DAX. This article describes the formula syntax and usage of the YEARFRAC function in Microsoft Excel. data=studypop; set=b; This can't be correct. When I finish all my data manipulation, I want the output displayed as an 8-character date (ie 20150819). Method 2: Round to Specific Decimal Places. Apache Hadoop is one of the earliest and most influential open-source tools for storing and processing the massive amount of readily-available digital data that has accumulated with the rise of the World Wide Web. Run PROC CONTENTS on your source datasets so you can see how the variables are defined. SAS/IML Software and Matrix Computations. Computing ages with YRDIF The SAS Help and Documentation states that the YRDIF function "Returns the difference in years between two dates. 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. On 31Dec2020 I would be 20 years old. There are 31 days in March, therefore Days_in_Month = 31. 0 + n366/366. then using yrdif function we calculated the age of the function by passing admit date and dob as arguments. The problem is that decimal months are not really defined; in fact, because some months have 30 days and some months have 31 days and some months have 28 or 29 days, I don't think you will find a unique answer, and I don't think there is anything programmed into SAS that will. SAS Visual Analytics Programming Guide. Using YRDIF in Financial Applications The Basics. DATEPART(. First, I do have a variable, year of birth (i. Well, it is in the Base exam prep guide, the YRDIF is useful, but I fail to see the purpose of learning this function for the base exam. new_num=input (character-variable, 4. comWhat's New in SAS 9. df1 = df1 self. Auto-call macro functions. . 9. It counts 29FEB birthdays on 28FEB instead of on 01MAR in non leap years. We would like to show you a description here but the site won’t allow us. sas. The resulting quality of life data are stored in a permanent SAS data set called qul . Also, strictly speaking, this is not a formatting issue, as the YRDIF or INTCK functions will work properly regardless of the format applied to the variable, and will work even if no format is applied. ( ) returns today's date as a SAS date value. Conclusion: Our findings demonstrated that MIR155HG knockdown inhibited the progression of cervical cancer by binding SRSF1, inspiring the usage of MIR155HG as. So use the MDY function to create date AGE=floor(YRDIF(mdy(1,1,RB080), today(),"AGE")); would use January 1 as the date in the year. In this video, you learn how to create a new column using the DATA step. It evolved from a project called Nutch, which attempted to find a better open source way to crawl the web. You can convert all or some of your RRSPs into RRIFs. start-date: a Date or DateTime. I'm working on exercise 12. 1. Study with Quizlet and memorize flashcards containing terms like what is the intck function?, what is the intnx function?, what are datdif and yrdif? and more. 4 DS2 Language Reference, Sixth Edition documentation. Metadata. new_num=input (character-variable, 4. This page lists all possible intervals. The YRDIF function want two date values. 4. Hello everyone, I am seeking SAS syntax for 'calculation person-year'. The option, yrunit (age), like the SAS function yrdif with basis 'AGE' calculates the. DATA DIFFERENCE; infile cards dlm=',' dsd; INPUT DATE1. For more information about standard securities. InRecentVisit=1 Incontact=1 Indemog=1 Inndi=1 SSN=XXXXXXX VisitDt=02APR2013 HtIn=67 WtLb=159 SBP=159 DBP=65 Inits=TRB City=Provo. Note I embedded the YRDIF function in the FLOOR function, assuming you want age as integers. R variables are similar to macro I am struggling to understand why a function with the same start and end dates is returning different values? YEARS_ON_JOB_c and YEARS2 have the same definition, the first being formatted as 10. (date () - datepart (col_C)) as age_bucket. txt"Study with Quizlet and memorize flashcards containing terms like Select the proper syntax to perform the following instructions: Specify the proper syntax for the MDY function to create a SAS value detailing how many days since Jan/01/1960. A character expression is counted as missing if it evaluates to a string that contains all blanks for has a length of zero. If you are referencing tables in multiple DBs/Schemas then any not in the DB/Schema you include in the connection would need. ; start-date: a. * from ( select d. Indeed, I would expect something more like this for January and February: data two; _start='01JAN2017'd; _end='15JAN2017'd; dif=(15*30/31)/360; output; The YRDIF function computes the difference in years between two dates. data data1_; attrib BRTHDAT_ DTHDAT_ length=8 format=date9. The Basics. JUL1991. Product. The YRDIF function can be used in calculating interest for fixed income securities when the third argument, basis, is present. “day” or “month”. 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. . The simple way using 365. Each line of data contains three dates, the first two in the form mm/dd/yyyy descenders and the last in the form ddmmmyyyy. The Little SAS® Book: A Primer, Sixth Edition. Matplotlib Tutorial : Learn by Examples. 25 as divider is actually a pretty good option. PROC SQL; %DO k=1 %TO 50; CREATE TABLE NewTable&k. Second, I would like to derive age from the stated variable based on today’s date. Below is a list of some examples in which we have demonstrated the INTNX function in SAS. 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. INTCK counts +1 every time it encounters 1 Jan. Abstract: yrdif Calculates people's ages from data on their birth date and some "current" daily date. The INTNX Syntax. 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. No other values for basis are val. If the values of DischargeDTS look like " 2015-06-09 00:00:00. Add 7 days to a specific date. Hi, I am using below condition for extracting the age column. order_type. School Middle Tennessee State University; Course Title STAT 4370; Uploaded By atwiyebaoh. YRDIF returns the difference between two dates according to specified day count conventions. This page lists all possible intervals. 4 Functions and CALL Routines: Reference, Fifth Edition documentation. First, I do have a variable, year of birth (i. ) The following example shows how to determine the date of the start of the week. ) 函数作用：sep是规定的分隔符，catx函数将字符数据前后拼接，中间分隔符相连。去除空格，且如有缺失值则不进行. This is my data dt_birth dt_death 4/21/1957 4/21/1967 4/21/1965 4/3/1976 I have to create a 3rd column called age. -----The hash OUTPUT method will overwrite a SAS data set, but not append. 3. The month difference should be closer to 12. 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. 19:08 – SAS Times Explored. When you run code that references a DBMS, a segmentation violation or an exception might occur. The first argument in udf. NumPy Tutorial with Exercises. StateCd=Utah ZipCd=84604 GenderCd=Male EthCd=Non-Hispanic RaceCd=White EthRaceCd=NH White BirthDt=. 3 Functions and CALL Routines. createDataFrame(data,schema=schema) Now we do two things. YRDIF returns the difference between two dates according to specified day count conventions. udf (Phases. I've see both of these questions asked, but the answers only seem to create something in memory. c. 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. I am getting wrong output. Contains up to 256 characters. uses the actual number of days between dates in calculating the number of years. 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. I am calculating age difference between birthdate & today's date. The newly created variable new_x is in numeric format. If COL_C has a DATETIME value (number of seconds since 1960) then first convert it to a DATE value. For instance, you can use YEARFRAC to identify the proportion of a whole year's benefits, or. If the value of argument is negative, the INT function has. birthday of 02/29/1960, date of 02/27/1965: yrdif gives 4. . In this section, we'll get a quick and broad overview of the fundamental things you need to know about working with dates in SAS. • Use the SORT Procedure to re-order observations in place or output to a new dataset. Merge two given maps, key-wise into a single map using a function. X years. IDF (minDocFreq: int = 0) [source] ¶. This release contains updates for many of the third-party technologies that are used by the platform, including the Java runtime environment (JRE) and many of the third-party JAR files. Fill in birth date for all missing records. YEARFRAC calculates the fraction of the year represented by the number of whole days between two dates (the start_date and the end_date). Table 3. 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. YYQ Function: Returns a SAS date value from year and quarter year values. SAS® 9. Now in its fourth edition, The Little SAS Book is a classic, helping many people learn SAS programming. YRDIF Function. 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. Moving and Accessing SAS Files. 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. The YRDIF function can be used in calculating interest for fixed income securities when the third argument, basis, is present. James Blum, UNC Wilmington. You only need to subtract the two numbers to calculate the difference in days. 11 #2 Using the dataset then calculating the difference between 1,2 and 3 variables, then rounding using YRDIF command. The informats for these two dates are different. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. About SAS DATA Step Statements. sas. = YEARFRAC("Jan 1 2007","Mar 1 2007") Use four-digit years whenever possible, to avoid getting unexpected results. I've the following code. 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. Accessibility for Base. DATA is in a format that is native to another host, or the file encoding does not match the session encoding. The DROP= option tells SAS which variables you want to drop. Ultimately, I don't want to informat the same variable three different ways just so that I can use the yymmdd8. 4. The following SAS program creates a temporary SAS data set called createdates that contains six date variables. phases_commence,T. 4 delivers a highly available and resilient platform for deploying SAS in traditional on. Thank you!! brth. Cross Environment Data Access will. 0). 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'. ; run;The only way I can get the YRDIF function to work is if I input the variables using the yymmdd8. SAS® Viya® Platform Programming Documentation . 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. Add 7 days to a specific date. The newly created variable new_x is in numeric format. 01M7P. MDY(20,15,15); B. 8 A SAS function, YRDIF, is used to create new variables similar to those created in step #7. (date () - col_C) as age_bucket. Posted 01-04-2021 05:26 PM (1057 views) | In reply to wheddingsjr. data temp; x = '12345'; new_x = input (x,5. 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. pdfVision Impairment in CKD Patients: Epidemiology, Mechanisms, Differential Diagnoses, and Prevention. If the date represented in the second argument is to be included in the interval an extra day should be added. INTNX(interval, start date, increment <, alignment>). I’ve attempted the derivation using the following code but I’ve been unsuccessful. 997260274, which is wrong. YRDIF 209 . This article describes the formula syntax and usage of the YEARFRAC function in Microsoft Excel. e. 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,. That can be costly. NOTE: Invalid second argument to function SUBSTR at line 26 column 9. 3479 : Print with formatted dates: startdate enddate duration . 07, the total interest is 1,670,206. (Note that each observation in the QUL data set corresponds to just one patient visit date. Operating Environments. Dictionary of SAS Statement Environment Variables. 2. Mark as New; Bookmark; Subscribe; Mute; RSS Feed; Permalink; Print; Report Inappropriate Content; Re: INTCK to compute ageAyapparaj / Praxis Business School 8 Chapter 9 Working with Dates Chapter 9 Working with Dates /* 2. ZIPCITYDISTANCE Function. Here are some real-world examples of how the INTCK function is used in SAS. The SAS INTNX function consists of 4 arguments of which 3 are obligatory: interval: a character constant, variable, or expression (in lower or uppercase) that specifies your interval, e. comYRDIF 209 . YRDIF returns the difference between two dates according to. 七天搞定SAS（四）：数据输出. opr_time,'order_type',d. In other words, it returns the date value for 30APR1796. ; it showed for each observation May2018, so basically nothing happened. Here is a complete list of the pre-built SAS macro functions. 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. Posted 06-19-2016 02:35 PM (12054 views) Hi , I need to calculate age at graduation. However, for pediatric studies, different approaches could give quite bit. 10. From SAS ®. The PROC statement would immediately end the data step, if the preceding IF had been properly terminated with a semicolon. 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. month_number=intck ('month',&start_date,mydate,'cont')+1; qtr_number=floor (. That said, AGE is not very granular, particularly forward infants, where aforementioned time lapse between ages 0 and age 1 can be how more as two years. 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. Cette fonction retourne la différence d'année entre deux dates. I am receiving the error: "Invalid character data" (Log below) Any help would be appreciated. In YRDIF calculations that use the ACT/ACT basis, both a 365–day year and 366–day. Expected output would be. The input file: sales. The appropriate format to use for SAS date or datetime valued ID variables depends on the sampling frequency or periodicity of the time series.