Stack area graph help
hi guys! The dataset that I am using provides me with height, weight and waist dimensions n information. This allows me to compute both BMI and WHtR for the adult population. My intent is to present...
View ArticleCheck multicollinearity (panel data)
Hi everyone. I have difficulties with working with panel data (i also new with working with STATA as statistical program) At this moment, I have a model with 17 variables but I'm sure that there will...
View ArticleDestring Date Variable
Hello, am trying to run odkmeta import do file but there are some error brought by the Variable "today" that it cannot be converted using the mask MDY, i have tried even DMY and its not working. Here...
View Articleusing a string variable in the replace command
Hi, I have a dataset containing a string variable called "Signal" that contains cells with text like SBDE, SBLM, and so on. I need to create a new variable that takes on different values depending on...
View Articleloop for dummies?
Hi Guys, I'm sorry but I wasn't sure about the title for this post. I'm working with the following configurations: OS: Windows 7 Stata 14 I'm trying to to prepare my data to run a diff-in-diff. For...
View ArticleBusiness Calendar Dates with Hourly Data
I have data on a frequency of every hour that only appears on business days. bcal seems to deal with business days, but is there a %tc equivalent of bcal?
View ArticleExporting results to MS Excel
Dear All, Is there a syntax that one could use to export the output below, maintaing thesame format, to MS Excel? Thanks, Dapel Code:...
View ArticleChanges-in-changes (CIC)
Hi, I am trying to estimate the changes-in-changes model developed in Athey and Imbens (2006) Econometrica . Here is a link to the paper and abstract: Keywords:Difference-in-differences;...
View ArticleLogistic regression: Post estimation, non linear proportion??? and...
Let say that I have a very simple model. My dependent variable is whether or not (yes and no categories) patients in a mental clinic were involved in a violent incident in their last admission. My...
View ArticleVariable suffix for long-to-wide reshaped data
Hello! I am working with data on women's contraceptive histories. In long form, cases are episodes of contraceptive use or non-use. In wide form, cases are women. I have reshaped my data from long to...
View ArticleCalculating average of specific number of observations across industry and years
Dear statalists, I’m using Stata 13.1 on Windows 7 and I’ve data from 2009-2012. I’ve calculated the market share of each company (i.e., comp_share). I would like to generate two variables, avrg1 and...
View ArticleSimulate data for conditional logistic regression
Hi: I have this sintaxis that you can read above, but I want to simulate the same model but now considering that I have a case and control study matched 1:3. (3 controls for each case), I will use a...
View ArticlePredict after Firthlogit
To calculate the Human Opportunity Index I need the probabilities that are obtained by using the command "predict prob" after logistic regression. It occurs, however, I detected in my database a...
View ArticleLeft single quote problem
I would like to display a left-single-quote character, i.e. ` . I know this can be done trivially with Code: dis "`" However, this is part of a larger program where other strings are also evaluated,...
View Articleconverting negative number to positive without affecting positive number
Hello I have a variable "Number" containing both positive and negative numbers. I want to convert all the negative numbers to positive number without disturbing the sign of positive numbers.How can i...
View ArticleDiscrete Labour supply model
Hi. I really need help about it. I want to estimate the discrete labour supply model. Do i have to make code or i go with the mixed logit model?
View ArticleMximum likelihood
I have a utility that i want to estimate. And then get the probability. Pij = exp(Uij)/Σexp(Uik). First i do maximum likelihood ? Is this a mixed logit?
View ArticleSpeeding up melogit estimation
Hi, I have a relative small data set (_N = 8800), with 44 subjects and each with 200 trials of data. I am running the following code: Code: melogit chose_left left_minus_right_rating...
View ArticleChi2 test for Trend
Hi, I am interested to perform a chi2 test for trend on my data, where Y variable is binary and X variable are my timepoints. I want to see if the positive increase over time is significant. Would the...
View ArticleIncreasing Number of Decimal Places for Output of Various Statistical Tests
I apologize for the basic question. I understand how to change the format of data itself to manipulate the number of decimal places displayed. However, I've been unable to change the format of the...
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