- What can proc FREQ be used to create?
- How do you proc sort descending?
- What is the difference between proc means and proc freq?
- What is a SAS library?
- What is proc frequency SAS?
- How do you create a two way table in SAS?
- What is PROC content SAS?
- What is SAS Libname?
- How do I convert character to numeric in SAS?
- What is Proc Tabulate in SAS?
- How do I make a contingency table in SAS?
What can proc FREQ be used to create?
Proc FREQ can be used to create one-way, two-way or n-way tables.
These tables are useful in analyzing the various values of a particular variable and their contributions to the overall dataset as a whole or subset therein.
A two-way cross-tabulation table provides a summarization for two variables in a dataset..
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.
What is the difference between proc means and proc freq?
PROC MEANS is used to calculate summary statistics such as mean, count etc of numeric variables. It requires at least one numeric variable whereas Proc Freq does not have such limitation. In other words, if you have only one character variable to analyse, PROC FREQ is your friend and procedure to use.
What is a SAS library?
In short, a SAS library is simply a collection of SAS files that are stored in the same folder or directory on your computer. … Other files can be stored in the same folder or directory, but only the files that have SAS file extensions are recognized as part of the SAS library.
What is proc frequency SAS?
The PROC FREQ is one of the most frequently used SAS procedures which helps to summarize categorical variable. It calculates count/frequency and cumulative frequency of categories of a categorical variable. … It also produces bar charts and tests for association between two categorical variables.
How do you create a two way table in SAS?
As you can see, to tell SAS to create a two-way table of ed_level and sex , we merely use an asterisk (*) to join the two variables in the TABLES statement. Launch and run the SAS program. Review the output to convince yourself that SAS created the requested two-way table.
What is PROC content SAS?
Summarizing Data with PROC CONTENTS. The CONTENTS procedure generates summary information about the contents of a dataset, including: The variables’ names, types, and attributes (including formats, informats, and labels) How many observations are in the dataset.
What is SAS Libname?
One or many datasets can be assigned to the same library. A library is assigned a location with a LIBNAME statement in SAS. A LIBNAME statement is one of those global statements that we mentioned in Section 1 that does not occur in a data step or a proc step.
How do I convert character to numeric in SAS?
To convert character values to numeric values, use the INPUT function. new_variable = input(original_variable, informat.); The informat tells SAS how to interpret the data in the original character variable.
What is Proc Tabulate in SAS?
Proc tabulate is predominately used to make nice looking tables. Unlike proc freq this procedure can handle multiple variables in the row and column expressions. It can also handle multiple levels in both rows and columns whereas proc freq will only create two variable contingency tables.
How do I make a contingency table in SAS?
To create a cross-table or contingency table in SAS, use the FREQ procedure: PROC FREQ; TABLES gender * grade; RUN; The above example creates a cross-table of gender and grade containing frequencies and cell percentages, row percentages, and column percentages.