The input statement assigns the names name, idnumber, salary, site, and hiredate to the variables that appear after the datalines statement. Instructor here lets look at hive functionswe can use to manipulate our data. The basic steps of compiling a data step are as follows. Depending on the type of function, the number of arguments it takes can vary. A data step is a type of sas statement that allows you to manipulate sas data sets. An associated web resourcesoftware help manual an associated web resourcesoftware help manual. However, the traditional string functions, such as substr and index, assume that the length of a string in a sas character column is always one byte. The work of manufacturing this is done in a sas data step through the use of a datastatement. Sas system, and a user can create customized formats for date, time or datetime variables using proc format. Quite often, however, the data that you need to process are in a raw form.
Almost all the data needs to be manipulatedprepared before data analysis. Compbl function it compresses multiple blanks to a single blank. Sas datetime informats are able to convert raw data into a date, time or datetime variable. Do faster data manipulation using these 7 r packages. Functions that create sas date, datetime, and time values the first three functions in this group of functions create sas date values, datetime values, and time values from the constituent parts month, day, year, hour, minute, second. Sas transforms data into insight which can give a fresh perspective to business.
The collection of functions and call routines in this chapter allow you to do extensive manipulation on all sorts of character data. Sas programming on data manipulation and preparation part. Export data to standard and commadelimited raw data files. This course is for those who need to perform advanced data processing and manipulation, and create a variety of outputs. Copying a data set with new variables concatenating any number of data sets. The function is sometimes mistakenly understood to have the same feature with the call execute, but it is definitely different between the two. This course is for those who need to learn data manipulation techniques using sas data and procedure steps to access, transform, and summarize sas data sets. This tutorial covers most frequently used sas character functions with examples. Sas creates a pdv to store the information for all the variables required from the data step. Have data in some foreign format excel, csv, spss, etc. In previous clips weve already used one of thesewith the csv custom processor. Both of your code art297 s code and ksharps code work perfectly for the sample data i. It writes out the value of the first argument, according to the format specified in the second nesug 2006 data manipulation and analysisdata manipulation. Matchmerging data sets that lack a common variable if data sets dont share a common variable, you can merge them using a series of merges in separate data steps.
Advance tips for manipulating data in commonly used sas procedures raj suligavi, htc global services inc. Essentials course and is not recommended for beginning sas software users. Unlike other bi tools available in the market, sas takes an extensive programming. Sas string functions sas character functions 7 mins.
These formats are often used for data input and data output. Sas system procedures can operate only on sas data sets. Some useful techniques of proc format stan li, minimax information services, belle mead, nj abstract sas format is a very unique and powerful function. String manipulation in sas sas support communities. Sas checks the data step for any unrecognized keywords and syntax errors. The call execute submits the parameter sas code after the data step finished. Paper 5127 tips for manipulating data marge scerbo, chpdmumbc abstract as a beginning sas programmer, you could be easily overwhelmed with the sheer size of the language. Advance tips for manipulating data in commonly used sas. Sas data sets can be converted to jmp files to view them by using jmp applications such as the jmp graph builder ipad application.
Sas programming on data manipulation and preparation. This post covers how to deal some of the advanced string operations with sas. Sas date, time, and datetime functions sas support. Control which observations and variables in a sas data set are processed and output.
Sas programming on data manipulation and preparation part 1. A robust predictive model cant just be built using machine learning algorithms. Juldate date returns the julian date from a sas date value. Now, hive functions are builtin or extensionsto the hiveql language that allow for manipulation of data. The course builds on the concepts that are presented in the sas programming 1. Both of your code art297 s code and ksharps code work perfectly for the sample data i gave before, but my data is more complicated than that. This course is part of a series by the sas institute, designed to prepare you for the sas 9. Data manipulation techniques issued by sas this course teaches data manipulation techniques using sas data and procedure steps to access, transform, and summarize sas data sets. Through innovative analytics, it caters to business intelligence and data management software and services. Sas has a vast repository of functions that can be applied to strings for analysis. Sas embedded process is a portable, lightweight execution container that allows the parallel execution of sas processes inside hadoop, spark, teradata, and many other mpp databases. Ds2 is a procedural programming language influenced by the sas data step. It provides system builtin standard formats and the capability of allowing users to define their own formats.
Nesug 2006 data manipulation and analysisdata manipulation. This course is for those who need to learn data manipulation techniques using the sas. Simple data manipulation free sas tutorials sascrunch. These functions are used as part of the data statements. If you answer yes, then sas programming on data manipulation and preparation. Sas programming 2 data manipulation techniques pdf get file sas programming 2 data manipulation techniques pdf. Data manipulation with the sas system add course to watch list. The inttest function can be useful in verifying which values of multiplier n and the shift index s are valid in constructing an interval name. All three statements allow you to change data in the database, not changing the structure but changing the content. San francisco, california usa introduction many sas applications require that operations be performed on data collected in the time.
Sas data sets can be written to an external file in json representation. Beyond the basics builds on the concepts that are presented in the sas programming essentials course and is not appropriate for beginning sas software users. Character functions 3 introduction a major strength of sas is its ability to work with character data. Sas macros for faster data manipulation complete tutorial. Sas macros are typically considered as part of advance sas programming and are used widely in reporting, data manipulation and automation of sas programs. The put function is, in some ways, similar to the input function. In sas, there are various functions available for handling character strings but sometimes they are not enough to manipulate character strings. There are four different types of hive functionsi want to touch on. Improving the performance of data manipulation zhichang jiang alberta health services zhichang. Here you can explore techniques for transforming data into useable formats with sas functions. A simple approach to text analysis using sas functions.
Every sas programmer is required to master sas data manipulation and preparation programming skills, which are critical and highly demanded in the sas. They take the data variables as arguments and return the result which is stored into another variable. But, with an approach to understand the business problem, the underlying data, performing required data manipulations and then extracting business insights. Downloadsas programming 2 data manipulation techniques pdf. The k functions offer the power of sas string function handling for. This course is for those who need to learn data manipulation techniques using the sas data step and procedures to access, transform, and summarize data. Next, we use a put function to perform a numeric to character conversion. Proc sort is one of the most important procedures in sas. The book is an excellent handbook on sas the book is an excellent handbook on sas functionsfunctions new sas9. Jan 31, 2017 sas programming on data manipulation and preparation part 1. Dec 22, 2015 but with the help of sas macros, i can write sas macro for each specific task and call it whenever they are required. The insert statement is one of the three statements belonging to the socalled data manipulation language part of the sql that is the insert, update, and delete.
Sas offers a variety of string functions that help you get the most out of your character data. In contrast, the dosubl function can submit sas code while the data step is still. Sas programming on data manipulation and preparation part 1 modify variables. The first step is, therefore, to transform the raw data into a sas data set. Hence, it is required to know the practical usage of character functions. Sas i about the tutorial sas is a leader in business analytics. Its a little bit tricky to deal character strings as compared to numeric values. Data manipulation with excel seminar for the mba students at the. Sas has a wide variety of in built functions which help in analysing and processing the data. The format statement assigns the standard sas format date7. Instructor stacey syphus explains how to use functions to modify numeric, date, and character data, and change one data type to another. May 15, 2019 strings in sas programming are the values that are enclosed within a pair of single quotes.
Jan 31, 2017 sas programming on data manipulation and preparation part 1 modify variables. Managing data investigate sas libraries using utility procedures. Dec 11, 2015 data manipulation is an inevitable phase of predictive modeling. Choose sas procedures confirm that sas did what you think it did interpret results. Character data acquisition, manipulation, and analysis.
448 865 1149 899 851 103 1361 444 945 871 107 1374 1503 1137 65 288 573 920 1483 261 337 923 1148 1444 328 1130 630 262 666 325 1133