What does compress does in SAS?
What does compress does in SAS?
COMPRESS function is basically used to compress/removes all the spaces/blanks in a character string. In other words, it removes leading, between and trailing spaces from the strings.
How do I compress a SAS dataset?
The two ways to compress data sets in SAS:
- Using the option in the DATA step to compress a data set: data ssd.income (compress=yes);
- To compress all data sets created within a SAS sessions: options compress=yes;
How do I compress a numeric variable in SAS?
compress(source, “1234567890”); compress(source, ”, “d”); To remove digits and plus or minus signs, you could use the following function call: COMPRESS(source, “1234567890+-“); compress(source, “+-“, “d”); The COMPRESS function allows null values and SAS missing values in the second argument.
How do I compress a word in SAS?
Examples
- Example 1: Compressing Blanks. data one; a=’AB C D ‘; b=compress(a); put b=; run;
- Example 2: Compressing Lowercase Letters.
- Example 3: Compressing Space Characters.
- Example 4: Keeping Characters in the List.
- Example 5: Compressing a String and Returning a Length of 0.
How do I compress a character in SAS?
The COMPRESS function compiles a list of characters to keep or remove, comprising the characters in the second argument plus any types of characters that are specified by the modifiers. All blanks have been removed. If the argument is completely blank, then the result is a string with a length of zero.
What does it mean to compress a function?
Vertical compression means making the y-value smaller for any given value of x, and you can do it by multiplying the entire function by something less than 1. Horizontal stretching means making the x-value bigger for any given value of y, and you can do it by multiplying x by a fraction before any other operations.
Which reduce the size of the data?
The process of reducing the size of a data file is often referred to as data compression. In the context of data transmission, it is called source coding; encoding done at the source of the data before it is stored or transmitted.
How do I compress in PROC SQL?
Re: Using COMPRESS function inside a PROC SQL with modifiers isn’t allowed. You can code the 2nd argument as an explicit list of characters to compress out, and omit the third argument altogether. Use the concatenation operator and create a string to list your characters.
How do I compress a macro variable in SAS?
How to use the compress function in a SAS macro? You can use the compress function in a SAS macro by using %sysfunc . An example would be if you want to keep only digits in a macro variable, you can use the below line of code.
What is Intck function in SAS?
Returns the number of interval boundaries of a given kind that lie between two dates, times, or datetime values.
How do I get rid of extra spaces between words in SAS?
Sometimes, a string variable can have many words in it and extra spaces between the words. The easiest way to get rid of the extra spaces is to use SAS function compbl.
How do you compress a function?
To vertically compress a function, multiply the entire function by some number less than 1. This is the opposite of vertical stretching: whatever you would ordinarily get out of the function, you multiply it by 1/2 or 1/3 or 1/4 to get the new, smaller y-value.