I. SAS Steps
1. DATA Step
Function: to create SAS data sets
2. PROC Step
Function: to perform data manipulation, statistical analysis and report / graph production
II. SAS Statements
3. Libname Statement
Function: to create a SAS library
4. Input and Datalines statement
Function: create a SAS data set with specified contents
5. Filename statement
Function: to specify the external data file
6. Infile statement
Function: to read in an external data file
7. Set statement
Function: to copy the contents from one data set into another
8. If-then statement
Function: set conditional statement to execute different functions
9. Keep, drop statement
Function: to keep only the variables needed in the data set
10. Merge statement
Function: to merge multiple data set into one
III. SAS Statements
11. Sum function
Function: to add up values
12. Basic mathematical operation
Function: to perform basic mathematical operations
13. Random Variable (Exponential)
Function: to create a random value from an exponential distribution
14. Random Variable (Uniform)
Function: to create a random value from a uniform distribution
15. Square / Square Root
Function: to calculate square and square root of a numeric value
16. Combine character variable
Function (double stroke): to combine two character values
17. Substr
Function: to extract partial text from a character value
18. Trim / Compress
Function: to remove trailing space (TRIM) or to remove all spaces (COMPRESS) from a character value
19. Index
Function: to identify the position where the specified text is found from a character value
20. Upcase, lowcase, propcase
Function: to convert the character value into upper case (UPCASE), lower case (LOWCASE) or proper case (PROPCASE)
Note: Proper case = Upper case in the first letter of each word and lower case in the rest
21. Label
Function: to change the label of the variable
22. Length
Function: to change the length of the variable
23. Format
Function: to change the format of the variable
24. ABS
Function: to convert the numeric value into an absolute value
25. INPUT
Function: to convert a character value into a numeric value
26. PUT
Function: to convert a anumeric value into a character value
27. Log
Function: to convert the numeric value into logarithm
28. Mean, Min, Max
Function: to compute the mean, minimum and maximum of a set of numeric values
29. Rename
Function: to rename a variable
30. Round / Floor
Function: to round a numeric value
IV. SAS Procedures (PROC Step)
31. Proc Sort
Function: to sort a data set
32. Proc Transpose
Function: to convert rows into columns in a data set
33. Proc Freq
Function: to compute frequency count and percentage of a variable
34. Proc Means
Function: to compute summary statistics such as mean, standard deviation and median
35. Proc GChart
Function: to create pie chart or histogram
36. Proc Reg
Function: to perform regression analysis
37. Proc GLM
Function: to perform general linear modeling
38. Proc Gplot
Function: to plot graphs
39. Proc Print
Function: to print the content of the data set
40. Proc Report
Function: to create a report from the data set
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