If you exit Stata by typing the equivalent exit command, you will see the following in the Results window if you have made changes to your data: . exit no; dataset in memory has changed since last saved r(4)
. do C:\Users\mydir\AppData\Local\Temp\STD08000000.tmp . * an example do-file . sysuse auto no; dataset in memory has changed since last saved r(4); . end of do-file [ GSW ] 13 Using the Do-file Editor—automating Stata 5 We now have a choice for what we ...
I don't understand what I'm doing wrong. In the data guidelines, it states that the data can be imported into Stata so I don't understand the issue here Solution 100%(1 rating) Step 1 This error message usually occurs when you have ...
滚动窗口回归(stata)
[D]describe Describe data in memory or infile [D]codebook Describe data contents [D]inspect Display simple summary of data’s attributes [D]count Count observations satisfying specified conditions [D]data types Quick reference for data types [D]missing values Quick reference for missing ...
在一份非平衡面板数据中,生成虚拟变量changed,表示企业(code)在样本期间行业类型(indcd)是否发生变化。若发生变化取值为 1 ,否则为 0 。如下图所示, changedcode=5=1 ,而 changedcode=6=0 。 分析问题 想了想,一共有三种处理方法: 方法一:简单粗暴但麻烦。保留企业和行业分类,去重,提取某个企业某一年的行业...
rolling — Rolling-window and recursive estimation 3 Options specifies that Stata replace the data in memory with the collected statistics even though the current data in memory have not been saved to disk. filename suboptions creates a Stata data file ( file) consisting of (for each...
3. no dataset in use You attempted to perform a command requiring data and have no data in memory. 4. no; dataset in memory has changed since last saved You attempted to perform a command that would substantively alter or destroy the data, and the data have not been saved, at least ...
drop eliminates variables or observations from the data in memory.keep works the same way as drop,except that you specify the variables or observations to be kept rather than the variables or observations to be deleted.Warning:drop and keep are not reversible.Once you have eliminated observations,...
Stata is a statistical package for managing,analyzing,and graphing data.Stata is available for a variety of platforms.Stata may be used either as a point-and-click application or as a command-driven package.Stata’s GUI provides an easy interface for those new to Stata and for experienced ...