What is the describe command in Stata?
The describe command shows you basic information about a Stata data file. As you can see, it tells us the number of observations in the file, the number of variables, the names of the variables, and more. describe. Contains data from auto.
Is Stata a coding language?
Stata has two programming languages. One, known informally as “ado”, is based on Stata’s commands. You can write scripts and programs to create reproducible analyses. You can even add new features to Stata.
Can you use multiple IF statements in Stata?
You can combine several statements under an if statement, but the whole block will either be executed or skipped. I recommend that you see [P] if or help ifcmd. if statements can be nested. An if statement can optionally be followed by an else statement.
What are the variable types 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 does tab1 mean in Stata?
tab1 produces a one-way tabulation for each variable specified in varlist.
Is Stata easier than Python?
Sullivan’s excellent notes. The biggest difference between Python and Stata is that Python is a fully-fledged programming language, which means it can do lots of things, while Stata is really just for data analysis….Stata <==> Python.
| Stata | Python (pandas) |
|---|---|
| outsheet using filename, comma | df.to_csv(‘filename’) |
How do you write or in Stata?
In Stata, these expressions use one or more various relational and logical operators. The operators ==, ~=, != , >, >=, <, and <= are used to test equality or inequality. The operators & | ~ and ! are used to indicate “and”, “or”, and “not”.
What is int type in Stata?
byte, int, and long are said to be of integer type in that they can hold only integers. Strings are stored as str#, for instance, str1, str2, str3, , str2045, or as strL. The number after the str indicates the maximum length of the string.
What does nol mean in Stata?
If labels are attached to the values of a variable, the data editor will display the labels by default. The “nol” (or “nolabel”) option will cause Stata to display the raw values instead: br var1 var17 in 1/20, nol. Of course, you may just enter “br” and will be able to look at the entire matrix.
Is Stata or R more useful?
I would like you to recommend R for data science if you have a basic knowledge of coding or are familiar with the coding environment. On the other hand, if you have some coding knowledge or no coding knowledge, you should choose Stata over R. Because it is quite easy to use and anyone can use it effectively.
How do you use if in Stata?
We can use if with most Stata commands. Here, we get summary statistics for price for cars with repair histories of 1 or 2. Note the double equal (==) represents IS EQUAL TO and the pipe ( | ) represents OR. A simpler way to say this would be… Likewise, we can do this for cars with repair history of 3, 4 or 5.
How to list observations if Rep78 >= 4 in Stata?
So, when we said list if rep78 >= 4, Stata included the observations where rep78 was ‘. ‘ as well. If we wanted to include just the valid (non-missing) observations that are greater than or equal to 4, we can do the following to tell Stata we want only observations where rep78 >= 4 and rep78 is not missing. make price mpg rep78 foreign 5.
What is a missing value in Stata?
These are missing values. For example, the value of rep78 for the AMC Spirit is missing. Stata treats a missing value as positive infinity, the highest number possible. So, when we said list if rep78 >= 4, Stata included the observations where rep78 was ‘. ‘ as well.