The proc transpose statement tells sas to execute the transpose procedure on an existing dataset called datasetname. To perform a multicriteria lookup and transpose results into a table, you can use an array formula based on index and match. It contains three sample sas input files, a set of basic proc transpose variations, and their output results. Since there is a pattern when you use sql method, you can convert the query to a macro easily.
Proc transpose computer programming areas of computer. The transpose procedure 4 by statement 1273 default. Ods began with version 8 and is now in production in version 9. My problem is that i need to order the column variables in a particular order when i proc print the dataset. Cohen, 2011 and links to sas documentation on proc transpose and on special. The correct bibliographic citation for this manual is as follows. When i transpose this dataset it creates a dataset with 2.
Youve now got the data in a sas data set, but each month is in a separate column or variable. In the introduction we mentioned already that proc transpose rotates a sas data set, which is to say that. Saving this information to a sas data set is thus a twostep process. These types of modifications can include changing a variables type from numeric to string or vice versa, merging the categories of a nominal or ordinal variable, dichotomizing a continuous variable at a cut point, or computing a new summary variable from existing variables. Proc transpose has several rules regarding how variables. To create transposed variable, the procedure transposes the values of an observation in the input data set into values of a variable in the output data set. Base sas, macros, routines, functions, sas data integration studio, sas in mainframes, sas webreport studio, sas enterprise guide, proc compare sas statistical analysis system search web. Figure simple transpose sas dataset transposed using proc transpose. Like other destinations, the pdf destination automatically generates link names wi. How to reshape data wide to long using proc transpose. Proc transpose russell lavery, independent consultant abstract if one can think about a sas data set as being made up of columns and rows one can say proc transpose flips the columns of data into rows of data and the reverse. The by statement is used to determine the row structure of the transposed dataset. Transposing this matrix would turn it into a 3x2 matrix 3 rows, 2.
This sas software tutorial shows how to use proc transpose to transpose a datasets rows and columns, and. Sometimes you need to reshape your data which is in a long format shown below famid year faminc 1 96 40000 1 97 40500 1 98 4 2 96 45000 2 97 45400 2 98 45800 3 96 75000 3 97 76000 3 98 77000. Proc transpose provides the ability to go from a long dataset where there are multiple rows for a given subject to a wide dataset where there are multiple columns for a subject. There is a summary sheet at the end of the paper as well for later reference. The syntax for the proc tranpose is somewhat misunderstood amongst sas users. The simplest possible case of transposing switches the rows and columns of a matrix. In this section we will detail all of the features of the proc transpose. A stepbystep guide to downloading and installing sas. We will then explore proc transpose in increasing complexity as we test. Q1 q2 q3 q4 a 1 2 3 4 b 1 2 3 4 c 1 2 3 d 1 2 e 1 2 3 4 i have data like above and would like to import and reshape the data into what it looks like. Create a data file suitable for charting or reporting. Click the download now button on the left if you have a 64bit machine.
That is, either put all of the variables on one record for each by variable, or create one record for every combination of the by variable, the id variable, any variables to be copied, and only one of the tobetransposed var variables values. Visualizing proc transpose sas proceedings and more. You could plot 12 overlapping lines against year, but we really want them all together as 1 long timeseries line. After the clanguage functions are registered in proc proto, they can be called from any sas function or subroutine that is declared in the fcmp procedure. This paper presents an easy beforeandafter approach to learning proc transpose. Its a very powerful procedure when you need to change the shape of the data. Usually, convert tall files into wide files example. Example 2 on page 1280 out outputdataset names the output data set. The out keyword says that the transposed dataset should be created as a new dataset called newdatasetname. The report procedure is widely used in generating reports which include. This tutorial explains the basic and intermediate applications of proc transpose with examples. Once you click the blue button see above, a window will pop up.
Logistic gee syntax for spss, sas, and stata huh, d. The procedure pads the output data set with missing values if the number of observations in the input data set and the number of variables it transposes are. When sas compares character strings without the colon modifier, it pads the shorter string with blanks to the length of the longer string before making the comparison. Taming the proc transpose sas proceedings and more. Below is an example of using sas proc transpose to reshape the data from a long to a wide format. Suppose you have obtained the data presented below from a multicenter study, where each patient is identified by the means of the two variables centre and subjectno.
So lets transpose the data, and make the months become values, rather than variables. How to reshape data long to wide using proc transpose. Hyperlinks will no longer be applied to blank cells. Right now the column names are not in any particular order. If one can think about a sas data set as being made up of columns and rows one. For example, you have data in vertical long format and you are asked to change it to horizontal wide format. Proc transpose free download as powerpoint presentation. Thus, if we run the following simple proc transpose step. You can use these functions in sas as well as in clanguage structures and types. It contains three sample sas input files, a set of basic.
Transposing one group of variables for a data set in wide format such as the one below, we can reshape it into long format using proc transpose. That is to say, it permits one to switch sas variables with logical record keys. You can find multiple examples in the sashelp library to help illustrate what a long dataset looks like. Transposing data using proc transpose sas tutorials. Using it, one can switch the significance of row and column identifiers, either globally or selectively within bygroups. For a data set in wide format such as the one below, we can reshape it into long format using proc transpose. Proc transpose variations, and their output results. In this video you will learn about how to save your output from a sas proc in doc, pdf, rtf format in a local system. If outputdataset does not exist, proc transpose creates it using the datan naming convention. The following links describe a set of free sas tutorials which help you to learn sas programming online on your own. By using proc sql, you can eliminate the use of data steps, proc summary and transpose steps.
This paper will provide a non technical approach to understanding the transpose procedure by showing the programmer how to visualize the expected output. Proc transpose is a powerful yet underutilized proc in the base sas toolset. If you dont have a 64bit machine, click the launch now button on the right to run sas studio on amazon web services. From the first output of proc print, we see that the data now is in long format except that we dont have a numeric variable indicating year. Where proc transpose will only include all numeric variables if there is no var statement, this parameter lets you indicate if you want all numeric variables, all character variables or simply all variables the %transpose macros features. Proc transpose was designed to either make a long file wide, or a wide file long. Advanced report procedure tips and tricks updated for sas 9. Learn the basics of proc transpose douglas zirbel, wells fargo and co. Most of the time, youll need to make modifications to your variables before you can analyze your data. Using proc sql to summarize and transpose data core. To generate a link in pdf, use the same mechanism as that used in html. The ability to effectively transpose a data set is very important when working with different data structures and different data standards. United states steel corporation rows of the original data matrix become columns, and columns become rows.
Obs centre subjectno gender visit sbp wt 1 1 1 female a 121. Proc transpose has several rules regarding how variables are created and named. This video will show you how to save sas output result in file formats such as rtf, word and pdf in your personal computer. It includes tutorials for data exploration and manipulation, predictive modeling and some scenario based examples. Many of these defaults can be overridden or altered by either using the proc transpose options or within a sas data step, using sas data step options. Proc transpose help order of transposed columns sas. Because the fact book needed a polished, professional appearance, information had previously been transposed. I have a proc transpose see fingure 1 that ends up moving date style named variables to be column names see figure 2.
How to turn rows into columns in sas university edition. It is probably a little unorthodox when compared with other procedures that analysts use. Create a report from the class dataset that allows you to link to another file. Proc transpose is a powerful data manipulation tool in base sas. If applied to a traditional dataset, this would make it so that there was one row per variable, and one column per subject. A quick introduction to the powerful report procedure. Place the ods layout start code after the ods pdf statement. Proc transpose as sas documentation says, the transpose procedure can often eliminate the need to write a lengthy data step to achieve the same result. Transposing statistics from proc means posted 07102017 2390 views after running my codes sas ods generate very nice output which looks like this. The proc transpose can save time and complexity once it is properly explained. Using sas colon effectively, continued 2 in sas, character strings must be adjusted to the same length before they can be compared. I am trying to take transpose of above sas file, to construct a sas file similar ods output table. This will lead to the download page for sas studio and virtual machine.