The collapse command in Stata is used to create summary variables from an existing dataset. It allows you to aggregate observations within groups, summarizing them into a new dataset. Collapsing a dataset can be
#To print the range of salary packages range.sal <- range(read.data$empsalary) print(range.sal) Output: [1] 20000 36000 #To print the details of a person with the highest salary, we use the subset() function to extract variables and observations max.sal <- subset(read.data, empsalary...
http://www.stata-press.com/books/imeus.html On Apr 6, 2008, at 02:33 , Jose wrote: I ran stcox with 1473 observations, each with two variables (sexo, admaecentro), plus the time of failure (tempoemdias) and the indicator of censoring (status). To analyse for the leverage (influe...
Why reprex? Getting unstuck is hard. Your first step here is usually to create a reprex, or reproducible example. The goal of a reprex is to package your code, and information about your problem so that others can run it…
Yulia Marchenko (StataCorp) September 12, 2024 8 Professional statistical software development Professional statistical software development Efficiency and reliability Some good programming practices Avoid duplicate code by writing reusable functions and programs. Perform intermediate computations in the highest-...
I'm attempting to output observations to a SAS dataset on my company's server in SAS Enterprise Guide from within a data _null_ step. Here's the basic idea using a test dataset: data test_data; input y x1 x2; cards; 1 2 3 10 20 30 100 200 300 ; run; data _NULL...
In general, the screening process should be conducted stepwise, beginning with a removal of duplicate citations from different databases, followed by abstract screening to exclude clearly unsuitable studies and a final full-text screening of the remaining articles (Pigott and Polanin2020). A graphical...
Because our model can include multiple observations per respondent, we report cluster-robust standard errors in the structural models to account for the non-independence of two or more observations from the same respondent. The entire analysis was carried out with the software package Stata 15. 4....
I'm attempting to output observations to a SAS dataset on my company's server in SAS Enterprise Guide from within a data _null_ step. Here's the basic idea using a test dataset: data test_data; input y x1 x2; cards; 1 2 3 10 20 30 100 200 300 ; run; data _NULL...
In general, the screening process should be conducted stepwise, beginning with a removal of duplicate citations from different databases, followed by abstract screening to exclude clearly unsuitable studies and a final full-text screening of the remaining articles (Pigott and Polanin2020). A graphical...