Zelig | A statistical framework that serves as a common interface to a large range of models | Data Visualization library
kandi X-RAY | Zelig Summary
kandi X-RAY | Zelig Summary
All models in Zelig can be estimated and results explored presented using four simple functions:.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of Zelig
Zelig Key Features
Zelig Examples and Code Snippets
Community Discussions
Trending Discussions on Zelig
QUESTION
I would like to perform a logistic regression by adjusting for propensity score. My question is, do I have to include the outcome (binary in my case) in the propensity score calculation? Otherwise how else can I link the outcome variable to the matched data created?
...ANSWER
Answered 2020-Jun-10 at 08:33The propensity score is stored as the variable distance
in dataMatched
, so you can include that as a covariate in your outcome regression just like any other covariate. That said, you don't need to do this. Matching on the propensity score already uses the propensity score to adjust for imbalance, so you don't need to use it again in the outcome regression model, especially if you're including covariates. It probably will not hurt, though.
QUESTION
I have 2 tables:
Users:
...ANSWER
Answered 2020-Mar-06 at 15:19I want to select all users that have an unanswered chat (that in the last chat record of the user, 'fromPhone' != '' support) and I need to add the date of the last 2 chats (that were sent by the user - 'fromPhone' != '' support) to the result.
The basic idea is conditional aggregation:
QUESTION
It might be a trivial question to many of you.
I have matched the treatment observations with a large pool of control observations using the MatchIt
package in r
with method nearest
. After extracting the matched data, should I use independent sample t-test or paired t-test to compare a continuous outcome variable? My understanding is that matching mimics balanced randomization where treatment and control groups are similar in terms of exogenous confounders. However, I've found some tutorials which are using paired t-test after matching. That made me wonder which treatment observation is matched with which control observation? I couldn't find an index variable that may answer this question. Following is a sample code that is similar to what I have used for my data:
ANSWER
Answered 2019-Sep-13 at 02:38For your first question about matched pair id: according to MatchIt
documentation, you can get see Outcomes of Matched Pairs:
QUESTION
I am using Afrobarometer survey data using 2 rounds of data for 10 countries. My DV is a binary 0-1 variable. I need to use logistic regression, fixed-effects, clustered standard errors (at country), and weighted survey data. A variable for the weights already exists in the dataframe.
I've been looking at help files for the following packages: clogit, glm, pglm, glm2, zelig, bife , etc. Typical errors include: can't add weights, can't do fixed effects, cant do either or etc.
...ANSWER
Answered 2019-Apr-30 at 16:02I would check out the survey
package which provides everything for which you are asking. The first step is to create the survey object, specify the survey weights and then you are off to the races.
QUESTION
I am trying to complete seemingly unrelated regressions (SUR) using the systemfit package in R. However, it is not straightforward to complete these analyses with multiply imputed data (with mice package).
Upon googling this question, I see that there was a deleted post about the identical question, which seems to have utilized the following example (credit to poster, minor edits)
...ANSWER
Answered 2019-Feb-01 at 12:03I don't think mice support pooling the results from SUR. You have to pool the results manually using Rubin's rules. I can go up to a certain point using your example, perhaps you can take it from there.
QUESTION
I am trying to get the total employee count under a manager and trying to add it If IsManager=True from the below nested JSON
...ANSWER
Answered 2018-Oct-02 at 01:18Edit: Not sure if I understood your question the first time I answered it. Below is the updated answer.
Not sure the way you are structuring this data is the right way to do this. However, here is a recursive function that I built that will accomplish what you are trying to do.
QUESTION
I am trying to get the employee count under a manger and trying to add it If Manager=True from the below nested JSON
...ANSWER
Answered 2018-Sep-13 at 18:33We can get the DirectChildrencount
using the children.length
property.
Further, we will make use of Array.prototype.reduce() to calculate TBDCount
and EmployeeCount
. We will use Array.prototype.map() to recursively iterate over the children
.
Here is the code snippet that manipulates the input to obtain required output. Suppose a
is your array:
QUESTION
I am trying to use imputed data created with MICE in Stata.
My understanding of the steps are:
1) converting the mids object to mi in R
...ANSWER
Answered 2018-Apr-22 at 11:15Q4 looks straightforward. The syntax for that command (not function) is documented as
QUESTION
I am using a multiply imputed dataset with Amelia and would then like Zelig to calculate predicted values from a regression model. Zelig's documentation states that "When quantities of interest are plotted, such as expected and predicted values and first differenences, these are correctly pooled across those from each of the m imputed datasets". This is true, but I would also like to obtain estimated values pooled across each of the imputed datasets as the output of the "sim" command.
Here is sample code replicating the instructions on the Zelig webiste and generating the same output:
...ANSWER
Answered 2018-Mar-28 at 17:20You don't need to use Rubin's rules in this case, since the uncertainty is calculated from the variance in the simulations. I'm a bit surprised that Zelig doesn't average these for you, but you can do it yourself without too much difficulty:
QUESTION
I want to compute a logit regression for rare events. I decided to use the Zelig
package (relogit
function) to do so.
Usually, I use stargazer
to extract and save regression results. However, there seem to be compatibility issues with these two packages (Using stargazer with Zelig).
I now want to extract the following information from the Zelig
relogit
output:
Coefficients, z values, p values, number of observations, log likelihood, AIC
I have managed to extract the p-values and coefficients. However, I failed at the rest. But I am sure these values must be accessible somehow, because they are reported in the summary()
output (however, I did not manage to store the summary
output as an R
object). The summary cannot be processed in the same way as a regular glm
summary (https://stats.stackexchange.com/questions/176821/relogit-model-from-zelig-package-in-r-how-to-get-the-estimated-coefficients)
A reproducible example:
...ANSWER
Answered 2018-Feb-07 at 12:13Use from_zelig_model
for deviance, AIC.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Zelig
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page