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. This procedure transforms the data from rows to columns or from columns to rows. For example, you have data in vertical long format and you are asked to change it to horizontal wide format. 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. My proc transpose is not turning out the way i need it to. Neither data set is currently structured correctly for the merge. You cannot use proc transpose with an id statement or a by statement with an engine that supports concurrent access if another user is updating the data set at the same time.
Sas tutorials transposing data using proc transpose search this guide search. Transposing data using proc transpose sas tutorials. In the input data set, each variable represents the scores from one tester. Using an array to transpose a table stack overflow. 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. A transpose samples lookup table, a syntax summary, and the full sample sas code are located in.
In the output data set, each observation now represents the scores from one tester. Note problem statementthis is quite similar to using proc transpose using values in sas. Besides these two, this paper also introduces a third way, proc. Hi all, first of all, thanks very much to all of you guys for actively showing interest in many of my queries and giving solutions. I did a groupby in a proc sql to get the data in a table that i needed but i am not getting my proc transpose to look right. Type is the by variable, and sold, notsold, repaired, and junked are the variables to transpose. Built for developers verifications can be initiated through the transpose dashboard, triggered based on ecommerce rules or. She also provides support for macro, data step and base procedures, with an emphasis on hash, arrays and merge. Data transposition with proc report midwest sas users group. You could plot 12 overlapping lines against year, but we really want them all together as 1 long timeseries line. Title op transpose conjugate transpose operator descriptionsyntaxremarks and examplesconformability diagnosticsalso see description a0 returns thetransposeof a or, if a is complex, the conjugate transpose.
How to reshape data wide to long using proc transpose. Most of the time, youll need to make modifications to your variables before you can analyze your data. This tutorial explains the basic and intermediate applications of proc transpose with examples. Proc transpose for multiple values kanhaiya gupta, tcs, fond du lac, wisconsin abstract proc transpose can be used to rotate transpose sas data sets. Creates an output data set by restructuring the values in a sas data set, transposing selected variables into observations. Sas variable names cannot begin with a number unless you have set validvarnameany. Naming transposed variables when the id variable has duplicate values. It contains three sample sas input files, a set of basic. In sas, the transpose procedure can perform simple transposes, wide.
Data step and proc transpose are the two most common methods. This macro runs all 50 ttests and customizes what sas prints to the results output, so all i have to do is copy and paste the output into my empty table shell. The proc transpose is part of the sas language that. We are transposing the count variable with popflag as the title of each column, and transposing it by state.
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. Below is an example of using sas proc transpose to reshape the data from a long to a wide format. The following example illustrates a simple transposition. You can find multiple examples in the sashelp library to help illustrate what a long dataset looks like. Using reshape2 for transposing datasets in r decision stats. For example, if you are transposing from a to c, use the a row row 1 to identify the chord, and then go down to the c row row 4 to find the transposed chord. How to convert pdf to word without software duration. The default tool in r would be reshape, although this is so user friendly that a reshape package has been added too. Taming the proc transpose matt taylor, carolina analytical consulting, llc abstract the proc transpose is often misunderstood and seldom used. This paper presents an easy beforeandafter approach to learning proc transpose.
The label option designates a sas variable character to hold the sas labels of the. Because the copy statement copies variables directly to the output data set, the number of observations in the output data set is equal to the number of observations in the input data set. How to reshape data long to wide using proc transpose. Introduction proc transpose is a flexible procedure that allows you to transpose one or more variables of all the. For a data set in wide format such as the one below, we can reshape it into long format using proc transpose. If you do not use the notsorted option in the by statement, the observations must be either sorted by all the variables that you specify, or they must be indexed appropriately. Preparing and reshaping data is the ever continuing task of a data analyst. Also, if you are going to use the %let assignment statement to remove leading and trailing blanks there is no need for any macro functions, at least in ver 9 or greater. A natural label for a report year is the year value itself, and hence the choice.
With sas, data transposition can be carried out in more than one way. If however two or more variables need to be transposed, you need to transpose each variable separately and then merge the transposed data sets, which can be time consuming. When i transpose this dataset it creates a dataset with 2. The transpose procedure transposes selected variables into observations. Transpose payment verification and identity authentication. 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.
Instead, for each by group, proc transpose creates one observation for each variable that it transposes. The output dataset resulting from running proc transpose on example 3 could be corrected. Li, city of hope comprehensive cancer center, duarte, ca. So lets transpose the data, and make the months become values, rather than variables. There is a summary sheet at the end of the paper as well for later reference. How to transpose a sas data set by using arrays and proc transpose. The transpose procedure creates an output data set by restructuring the values in a sas data set, transposing selected variables into observations. Youve now got the data in a sas data set, but each month is in a separate column or variable. Simplifying effective data transformation via proc transpose arthur x. 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. Simplifying effective data transformation via proc.
The first transpose is similar to previous examples. Sas principal technical support analyst grace whiteis is a technical support analyst in the foundation sas group. The above code creates a data set called outdata which contains values of variable marks stored in horizontal wide format. Structuring the data for a merge university of maryland.
A concrete example of the start data and the transpose used would help. 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. Transpose also analyzes dozens of data points to verify your customer is the real, legitimate owner of the payment method used in the transaction. For simplicitys sake, ive restricted this code to just 9 dxa variables.
It contains three sample sas input files, a set of basic proc transpose variations, and their output results. Paper 0602009 learn the basics of proc transpose douglas zirbel, wells fargo and co. Proc transpose variations, and their output results. Its a very powerful procedure when you need to change the shape of the data.
This sas software tutorial shows how to use proc transpose to transpose a datasets rows and columns, and discusses when to use a transpose. How to reshape data long to wide using proc transpose sas. How to turn rows into columns in sas university edition. Proc transpose vs arrays vs proc summary mike zdeb, university at albany school of public health, rensselaer, ny abstract when data for the same entity person, place, thing are stored across multiple observations, it is a common task to place all the data for a given entity into a single observation. If youd like to download the sample dataset to work through the examples, choose one of the files below. Data transposition with proc report lingqun liu the university of michigan, ann arbor abstract transposition is a very common data manipulation task.