Question: How Do You Use Proc Contents?

What procedure mean?

1a : a particular way of accomplishing something or of acting.

b : a step in a procedure.

2a : a series of steps followed in a regular definite order legal procedure a surgical procedure.

b : a set of instructions for a computer that has a name by which it can be called into action..

How do you use proc frequency?

Syntax. PROC FREQ DATA=sample ORDER=freq; TABLE State Rank / MISSING; RUN; The ORDER=freq option in the first line of the syntax tells SAS to order the values in the table in descending order.

What is Proc Freq?

Proc FREQ is a procedure that is used to give descriptive statistics about a particular data set. Proc FREQ is used to create frequency and cross-tabulation tables. … Any dataset that requires analysis on an individual or multi-variable level can be manipulated with this procedure.

What is the difference between proc means and proc summary?

Proc SUMMARY and Proc MEANS are essentially the same procedure. Both procedures compute descriptive statistics. The main difference concerns the default type of output they produce. Proc MEANS by default produces printed output in the LISTING window or other open destination whereas Proc SUMMARY does not.

Does Proc means ignore missing values?

PROC MEANS excludes missing values for the analysis variables before calculating statistics. … If a FREQ variable value is missing or nonpositive, PROC MEANS excludes the observation from the analysis. If a WEIGHT variable value is missing, PROC MEANS excludes the observation from the analysis.

What is Proc short for?

proc (plural procs) Abbreviation of procedure.

How do I convert numeric to character in SAS?

To convert numeric values to character, use the PUT function: new_variable = put(original_variable, format.); The format tells SAS what format to apply to the value in the original variable. The format must be of the same type as the original variable.

What does Proc print do?

Proc print is used to display data in the output window. The output can be saved, printed, or copied into a word processor or other program.

What does noobs mean in SAS?

“NOOBS – Suppress the column in the output that identifies each observation by number” “LABEL – Use variables’ labels as column headings”

How do you define a proc in SAS?

PROC MEANS is one of the most common SAS procedure used for analyzing data. It is mainly used to calculate descriptive statistics such as mean, median, count, sum etc….Common Statistical Options.Statistical OptionDescriptionMEANArithmetic averageSTDStandard DeviationMINMinimumMAXMaximum12 more rows

What is _N_ in SAS?

According to the SAS Data Step Documentation, two automatic variables are created in a data step. The _ERROR_ variable and the _N_ variable. The _N_ variable is commonly used to keep track of the number of times the data step has iterated. … This means that the data step iterates three times.

How do I remove a variable format in SAS?

To remove a format from specific variable(s): ADD format varname ; to the data step (where varname is the name of the specific variable you want to display without the format labels). Example: Use a data step to create a new data set, and remove format from genhealth in the new data set.

What is nway in Proc Summary?

The NWAY option enables you to generate summary statistics for one particular combination of class variables—all of the class variables—in a single PROC MEANS step.

What is Proc format?

PROC FORMAT is a procedure that creates map- pings of data values into data labels. The user de- fined FORMAT mapping is independent of a SAS DATASET and variables and must be explicitly as- signed in a subsequent DATASTEP and/or PROC. PROC FORMAT can be viewed as a table lookup.

What does Proc Summary do in SAS?

When we specify NWAY, Proc Summary limits the output statistics to the observations with the highest _TYPE_ value. This means, that SAS outputs only the observations where all class variables (if any) contribute to the statistic.

How do you proc sort descending?

If you list just one variable, then SAS will sort the observations in the dataset based on ascending values of that variable. … You can sort in descending order by placing the keyword DESCENDING before the variable name that you want the dataset to be sorted on. … You can sort by as many variables as are in the dataset.

Do loop SAS data step?

General Form of Iterative Do LoopsDO, index-variable, start, TO, stop, and END are required in every iterative DO loop.index-variable, which stores the value of the current iteration of the DO loop, can be any valid SAS variable name. … start is the value of the index variable at which you want SAS to start the loop.More items…

Where are SAS formats stored?

Permanent SAS data sets can be created by specifying a two-level dataset name. Formats created using PROC FORMAT are stored in format catalogues. By default, the format catalogue is stored in the work directory and deleted at the end of the SAS session (along with temporary data sets).

What does nway missing mean in SAS?

If you omit the MISSING option, the SUMMARY procedure excludes any rows with a missing value in a CLASS variable from the resulting output SAS data set. … The NWAY options instructs the SUMMARY procedure to only create rows with a combination of all class variables.

What is Nobs SAS?

nobs is a SAS automatic variable which contains the number of records in the data set named in the set statement. The code, nobs = n, places the value of nobs (the number of records in the sashelp.

What is Proc print in SAS?

In the SAS code above, PROC PRINT tells SAS to execute the print procedure on the dataset specified by the DATA command. As with all SAS procedures, the DATA command is optional, but recommended. If you do not specify a dataset, SAS will use the most recently created dataset by default.