Question about reghdfe and dropping a dummy?
Hi all, I have a short question, does Stata drop a dummy automatically when using the reghdfe as it does for reg in order to avoid multicollinearity? As I went through the paper of the reghdfe author...
View ArticleStata Automation not creating "StataOLEApp" Object (VBScript)
Hi folks, I am trying to create the Object stata.StataOLEApp, but when I execute the following code, in VBScript: Code: Dim objStata Set objStata = CreateObject("stata.StataOLEApp") I get the following...
View ArticleCalculating standard errors of proportions
Hi, I am performing a meta-analysis to identify pooled proportions of patients with specific complications across different subgroups. I have two columns (across 400 or so studies) - one that lists...
View Articlecreate index
Hello, I want to create an index. I created a variable that replaces the tiny by capital (cond1). It also replaces spaces with nothing (cond2). I wish to have an index. He will take the value of 1 if...
View Articleremoving substring of charachters
I am not very experienced in Stata but I have built a code to take information from a text file and turn it into a data file. Some of the text are in bullet points such as "a. " I have figured out how...
View ArticlePlot coeffients of regressions
Hi, I regress with the same independent variables for several dependent variables. This is the code i use to regess: foreach x of varlist ER_1- ER_12 { regress `x' Neg Market Price Mom } } Now I would...
View ArticleCox regression with categorical time-varying covariates
Hello everyone, I am currently struggling with some of my data analysis. I am not experiencing any problems with my results, but I am not sure whether I am using the right code. I get mixed messages on...
View ArticleBetween group comparisons in meta-analysis?
Hi, I am using metaprop to compare the pooled proportions of a particular outcome across different groups. I get the following output: Group 1 Sub-total | Fixed pooled ES | 0.13 0.13 0.13 53.73 Group 2...
View ArticleDouble quotes in outsheet
Dear All, I need to export data in a particular format and I am hoping outsheet or export delimited can deliver tab-delimited output where values are enclosed in quotes if and only if they contain...
View ArticleSelection bias due to competing risk problem?
I am studying the risk of colectomy in patients with ulcerative colitis. I have previously shown that the risk to have UC is very low in patients having appendectomy (especially for appendicitis before...
View ArticleHow to perform logistic regression for study purpose in this dataset?
Hi, I have a question regarding how to organize the data in order to perform logistic regression. Please see the below sample dataset (part of the whole dataset composing nearly 400 observations):...
View ArticleHow to delete all observations except the last one in each month?
Hello, I am new in Stata. I would appreciate your help. I want to delete all observations except the last one in each month. So, I want the last observation of jan/1927, the last observation of...
View ArticleChoice of Intel Xeon processor for running Stata
I am considering a new workstation for running Stata, both computationally demanding tasks such as boostrapping or mixed models on up to 10 millions of observations and manipulation of large files...
View ArticleRestricted Cubic Splines
Hi there, I'm pretty new to STATA, and I was just introduced to Restricted Cubic Splines. Our instructor told us to use the "RCspline" command (she uses SAS, and hasn't been very helpful). I'm trying...
View ArticleCombining many multiple variables in a bar chart
Hi there I'm looking to create a chart which looks like this http://imgur.com/a/POYQi I have 10 dummy variables for each person in my dataset of the form Dum1 = Coffee is favourite drink Dum2 = Coffee...
View ArticleOneway plot
Good evening all, I am trying to generate a one-way plot in which the y-axis has 8 dichotomous variables, and the X axis is a percentage of those who responded "yes" (coded as 1) on my Y variables. I...
View ArticleCode for Combining Variables
Client sent me STATA file. Haven't used STATA since Clinton Administration. Basic commands I can do, but I need to combine data within a variable. Example. I did a statewide survey where people had to...
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Retaining Individual Iterations of Bootstrap Estimates
Dear Stata Users: I'd like to retain individual parameter (B) and standard error (se) estimates from a bootstrap procedure. That is, sample with replacement N times, run a regression on each of the N...
View ArticlePoisson regression using mid-year population estimates (census data)
Dear all I am reasonably familiar with using Poisson regression as part of "stset" when I have dates individuals entering observation, dates they leave or the event happens and whether or not an event...
View ArticleGetting either error bars with "twoway" or connecting...
Hi I have three variables in my dataset that I have created separately from my original dataset: - mean (represents proportion with the outcome) - se (standard error of the mean) - year (explantory...
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