Help on creating descriptive tables
Dear members of the Statalist community, I am writing a paper where I look at several variables across industries which aim to explain stock returns. I would like to create neat and concise descriptive...
View ArticleRepeated measures independent variable(s) with binary outcome
Hello Statalisters, This is my first message on this forum, so please bear with me :-). I'm trying to assess the impact of several pre-operative independent variables on the outcome of interest (death,...
View ArticleConverting numeric to String
When I run the code forvalues i=1(1)20{ tostring `i', replace(s`i') format(%02.0f) } i got the error message: 1 invalid name What is wrong with the sintax?
View ArticleContradicting Stationarity results (ACF and Unit Root Tests)
I have done the Phillips-Perron Test and Augmented DF Test on my data and both point out that I have a stationary time series data. However, my ACF says otherwise. A symptom of non-stationarity is that...
View ArticleRobust Regression or Robust Errors
Hi, I'm fairly new to stata and am trying to estimate the effect of drug crimes on house prices. I am using a fixed effects model but it suffers from heteroskedasticity and outliers. Therefore, I am...
View Articlecv_regress: Leave-one-out cross-validation statistics for OLS regressions
Hello every one, I wanted to let you know a new program has been posted for the estimation of the leave one out error, and estimation of CV statistics for linear models. In specific, it provides the...
View ArticleMDS error: gradient of loss could not be computed or is missing r(498)
In September, I posted a question regarding using MDS with a dataset prepared for EFA and CA. Tenured Members Phil Bromiley and Oded Mcdossi helped me re-design my code, which made it work perfectly...
View ArticleEstimation of Counterfactual Distribution of the outcome using counterfactual...
Hello everyone: I am working with survey data on wages and sociodemographic factors to evaluate the change in educational attainment on inequality measures on hourly wages and quantile estimates. For...
View ArticleSimilarity Index
Dear All, I have to create a similarity index among names of products belonging to a same firm. For each product I have a string indicating the name of the product. Of course by using "bys firm_name...
View Articlemarginal effect when dependent variable is IHS transformed
I have a following model: yi=alpha+beta Xi+gamma Di+epsiloni where yi is transformed using inverse hyperbolic sine (asinh) because of negative and positive values in the raw data, X is continuous...
View ArticleBusiness Day computation
Hello everyone! I am dealing with an event study for financial application and I am facing the following issue: For each of my events I would like to pull data for the 5 trading days prior and 5...
View ArticleEvaluation / difference in difference graphs: plotting means and CIs of an...
Hi, I want to make a graph in STATA (15.1) that plots means and CIs of an outcome variable(y-axis) over years (x-axis) of a control and treatment group( may be separate graph for each group or one...
View ArticleHeteroskedasticity - Interpretation after reg robust
Hi, I am currently working on my thesis and I have a question regarding heteroskedasticity. I researched quite a lot but i could find no answer. I believe this might be related to the fact that I am...
View ArticleCreate dummy
Hi, I would like to create a variable how long a person has been married: From: BURGST What is your marital status? 1 married or registered partnership, having community of property (including...
View ArticleViewing output with eventstudy2 package
Dear all, I have conducted an event study using the eventstudy2 package by Thomas Kaspereit. However, whilst I can see the significance signs on the test results, I cannot view the associated number...
View ArticleHansen test for System GMM using xtabond2
I issued the following command to do a system GMM: Code: xi: xtabond2 gdpgrowth lisxp linirgdpch lopen ki liberty lkg i.year, gmm(linirgdpch, collapse) ivstyle(lisxp lopen ki liberty lkg i.year)...
View ArticleLooking up values in county level data file to combine with individual level...
I have a data set of about 500k incident cancer cases with characteristics of each case including the county of residence. I have a second data set with characteristics of the counties. How do I lookup...
View ArticleWTP doublet module
if the first bid price is one fix number, instead of a set of prices, can I still use the doublet module? if not , can I simply put the actual number in the function instead of treating it as a...
View ArticleI am getting the "factor variables and time series operators not...
Please help: When I run treatment effect analysis using the bmte command, I am getting the "factor variables and time series operators not allowed" error 101 message. Here is my syntax: bmte...
View ArticleSibling fixed effects
Ciao, I have data on siblings who were raised in foster care which I intend to use to investigate mental health. In some cases the siblings are raised together in foster care. In other cases the...
View Article
