How to create a log variable in stata
How do you create a natural log in Stata?
Note: In Stata, ln(x)=log(x), in other words, log(x) defaults to natural log instead of log base 10. If you want log base 10, use log10(x).
How do I create a new categorical variable in Stata?
What is a log variable?
Taking the log of one or both variables will effectively change the case from a unit change to a percent change. A logarithm is the base of a positive number. For example, the base10 log of 100 is 2, because 102 = 100. So the natural log function and the exponential function (ex) are inverses of each other.
What is a log in Stata?
A Stata log file is an electronic record of your commands and results that can be printed or saved to a file. 2) If you do not have an active log (i.e. you have not already opened a log file), then Stata gives you the option to open one. You can specify any file name for your log. The log suffix should be .
How do you create a log?
Do-file vs log file?
A do–file is a series of commands to be executed in the correct sequence. Do–files document what you did and they are also a good way to identify and correct any mistakes that have been made. Log–files are Stata output files. They also include the documentation of what you did and also your results.
Do log files file Stata?
smcl file can only be opened in Stata. 2 Alternately, you can use the menu: click on File, then on Log, then on Begin. Navigate to the folder where you want to save your log file, enter the file name, and specify whether you want to save the log as a . log or .
What is Stata do file?
Stata programs are called do–files. The do–file contains the Stata commands that you wish to execute. Executing a do–file is the same as executing a series of commands interactively, only you have a permanent record of your commands. This allows you to quickly reproduce work you have already done and go from there.
How do you write do file in Stata?
To create a do file on a Mac, click on File, then on New, then on Do File in the Stata window. Alternatively, you can click on the “Do–file Editor” icon in the Stata window. A new window will appear: This blank text document is your do file.
What does || mean in Stata?
That || is a synonym for | is in the help, but that is as a logical > operator. The | is used to overlay graphs.
What does CD mean in Stata?
1.0 Stata commands in this unit
| pwd | Show current directory (pwd=print working directory) |
|---|---|
| cd | Change directory |
| keep if | Keep observations if condition is met |
| keep | Keep variables or observations |
| drop | Drop variables or observations |
Why do we use CDS?
The cd command, also known as chdir (change directory), is a command-line shell command used to change the current working directory in various operating systems. It can be used in shell scripts and batch files.
How do you set a directory?
To change to a directory specified by a path name, type cd followed by a space and the path name (e.g., cd /usr/local/lib) and then press [Enter]. To confirm that you’ve switched to the directory you wanted, type pwd and press [Enter].
What is a directory Stata?
A directory (also known as a folder) is a place on your computer or network to store and sort files. An example of a directory is the Documents folder on your Windows or Mac computer. Stata needs to work from a directory on your computer. It automatically loads a directory when it starts.
Can Stata create folders?
Stata has a tree-style structure to organize directories as well as folders similar to other operating systems, such as Windows, Linux, Unix, and Mac OS. This makes things easy and folders can be retrieved later on dates that are convenient.
Which command is used to display your working directory?
The pwd command is used to display the current working directory.
What is a working folder?
Your ‘working folder‘ is a folder on (one of) your drives where you keep all of your data for a particular project or piece of analysis. If you have never been so organised with your data sets, now is an excellent time to start!
How do I access my work folder?
Type File Explorer in the search box on the taskbar, and then select File Explorer. Find your Work Folders location (usually located at C:\Users\user name\Work Folders, where user name is your Windows user name).
What is an offline folder?
Offline Folders allow you to compose email and make updates to items such as Contacts and Calendar events when you are unable to have a network or Internet connection, such as on an airplane. When you first enable Offline Folders, all the information in your Exchange Server mailbox is copied to this file.
How do I create an offline folder online?
To make files or folders available offline
- When your PC is connected to the network, open File Explorer and find the network file or folder you want to make available offline.
- Select the file or folder, tap or click the Home tab, tap or click Easy access, and then choose Always available offline.
How do I make something available offline?
If you’re using an Android phone, you can activate offline mode by opening the Google Drive or Docs app, pressing and holding a file that you’d like to access offline, and tapping the icon that looks like a checkmark.