What does long mean in Stata?
Storage types
| byte | integer values between -127 and 100 |
|---|---|
| long | integer values between -2,147,483,647 and 2,147,483,620 |
| float | real numbers (i.e. numbers with decimal places) with about 8 digits of accuracy |
| double | real numbers (i.e. numbers with decimal places) with about 16 digits of accuracy |
What is E 06 in Stata?
e6 would be 1 million, e-6 1 part in 1 million. Your number is about 2 parts in 100 million. If you want that with 2 decimal places it will just show as 0.00.
What are the types of variables in Stata?
Storage Types in Stata Numeric variables are stored as byte, int, long, float or double. Float and double are the two that can hold non-integer numbers (decimals) and are the most common.
What are float variables in Stata?
For example, float variable type data will be stored with a 7-digit level of accuracy. This means that Stata will not round a number stored as a float type, as long as the number is 7 total digits or fewer. If precision is needed past the 7- digit limit, however, the “double” storage type should be used.
What is the difference between numeric and string variables?
Numeric variables contain only numbers and are suitable for numeric calculations such as addition and multiplication. String variables may contain letters, numbers and other characters. You can’t do calculations on string variables -even if they contain only numbers.
How many variables can you have in Stata?
There’s a limit of 2,047 variables in Stata/IC, 32,767 in Stata/SE, and 120,000 in Stata/MP. You can have as many observations as your computer’s memory will allow, provided you don’t go too far above 2 billion cases with Stata/SE and 1 trillion with Stata/MP.
What is the difference between string and float?
A STRING is literally a “string” of characters. A letter, a sentence, anything that is not a “value” .. A FLOAT is just a number with a decimal. As an INT is a whole number (no decimal) – a FLOAT is basically like an INT but with a decimal.
What is the difference between an integer and a float?
Integers and floats are two different kinds of numerical data. An integer (more commonly called an int) is a number without a decimal point. A float is a floating-point number, which means it is a number that has a decimal place.
What is 1e 12 mean?
a million million
1E12 is the same as 1000000000000 (a million million).
What is 1e 03k?
1 million xp. This is similar to exponential notation on your calculator; in this case the “1e*03” part is like saying 10 to the 3rd power, or 1000. So you get 1000k experience, or 1 million.
What can you do with Stata’s String variables?
You can now use Stata’s string variables to hold exceedingly long strings, even the contents of files or even binary files. Say we have data on 500 patients stored in our Stata dataset patients.dta.
Can I reshape data with a suffix in Stata?
Stata can handle that as long as you use the string option to indicate that the suffix is a character. In the example below, the string option has been added at the end of the command. Let’s look at the data before and after reshaping.
What are the three integer formats used in Stata?
Stata’s three numeric formats are denoted by a leading percent sign, %, followed by the string w.d (or w,d for European format), where w and d stand for two integers. The first integer, w, specifies the width of the format. The second integer, d, specifies the number of digits that are to follow the decimal point; d must be less than w.
What are the different types of string variables?
The string-variable storage types are str1, str2., str2045, and strL. strL? Think of it like this: after 2,045 comes L. The L stands for long. strL is pronounced sturl. strL variables work just like str# variables: