Graph of event study for multiple regressions using eventdd package

Using the following command and using the data, you can use an event study graph for only one set of regressions, but I want to create the s...

Correlation between variables

Hello Statalists, Please, could anyone help with the correct command? I have two datasets measuring the weight of a product using two diff...

Finding sum per row based on conditions

Members, I have a dataset with multiple columns (var1, var2, var3, etc.) with missing observations. Per row, I want to find the sum of the...

extract letters from words

Dear All, Suppose that I have this data set (with variable "Journal_e": Code: * Example generated by -dataex-. For more info, ty...

Heteroskedasticity - Breusch–Pagan test

Dear Stata community! I am running the three Breusch–Pagan tests versions most common in Stata (estat hettest estat hettest, iid estat he...

using collect to place frequency distributions from two variables next to each other

Dear Stata Forum, I would like to use the collect command to make a table that has two frequency distributions (from two different variabl...

Working with dates

Hello, I am attempting to turn a string value "2020-2021" into a date value. Nothing I am doing is actually working, its only ret...

Stock variable problem

Dear Statalist, I am trying to address the perpetual method in order to build a stock variable. Basically, first it generates a initial stoc...

Panel data OLS time and ID restrictions.

Hello I want to make an OLS regression in Stata my regression will be Code: regress regress interestrate lag_interestrate i...

Error (3200) in meglm, when using X##X, but no error with X and X_squared

Dear Statalist members, I am using Stata 17 MP (duly updated). The models and the data I am fitting negative binomial (NB2) 3-levels g...

How to get price spells ?

I have Monthly prices data of many goods for 10 years. I need to get the price spells i.e. the duration for which the prices remain unchange...

A squared term is negative and significant but the graph is not.

A squared term is negative and statistically significant, suggesting an inverted-U relationship as hypothesized, but the graph for the predi...

Help with interpreting regression results

I run this code in Stata 17 Code: reg sbpd ib6.group i.black_or_not ib6.group#i.black_or_not i.sex age stratum urpot, cformat(%9.2f) vce(c...

Case control matching with age, gender and BMI

Hi I am trying to match data by gender, age range +/- 5 years and BMI +/- 3. With the code below it matches but it is including BMI values ...

Cannot install estout package

Hello everyone, I have been experiencing some issues while trying to install the estout package on my computer using Stata 17. The code I us...

Dealing with Highly Collinear Independent Variables

Dear Stata Members I have a panel data where my independent variables are highly COLLINEAR(Index1 to Index4). In that case, rather than dr...

Trim and fill using metatrim

I looked through other forum posts ( post1 , post2 , post3 , post4 ) and this question has been asked many times in the forum, but it remain...

Creating a new variable (that changes value in every 3 days....)

I am working with survey dataset. It has 30 people (variable name = dlp, numeric) who start work in different date (variable name= date, dat...

encode with strange number?

Dear All, I have this data set in Stata format (dataex may not be appropriate for my purpose), encode.dta . I use Code: encode Journal_e, ...

Convert date variable to scale variable

Hi all I imported an excel dataset to Stata 15. Unfortunately a scale variable (Body Mass Index measured up to 2 decimal places) had a wron...

Stata histogram Help

Hi, I'm attempting to find the 80th percentile of sales transaction totals in stata and graph it. I'd like the top of the first bar...

Mediation: Direct effect greater than the Total effect !

Dear all, i hope you are doing good in this period of Covid in my work i have studied the following relationships: impact of financial...

Interpret IRF scale

Dear all, I have got an annual database with a short term interest rate in percent, a long term interest rate in percent and consumption e...

How to create a binary variable that identify whether another variable has duplicates in the dataset using Stata?*

The dataset is laid out in longitudinal format where the patient id (pid) is the first column, and the second column "PE"is if th...

How to create a binary variable that identify whether another variable has duplicates in the dataset using Stata?*

Please help me to delete this post because it is duplicated as above. Thank you!

add a command and all generated variables and data lost.

rename __merge __merge1 /* rename previous merge commands in order to merge tax+financial data with hotel groups data*/ variable __merge no...

Please Help with Code

Hi All, I am trying to make a variable that identifies whether a person's second to last work history entry was employment (as opposed t...

Invalid name in foreach loop

Hi all, I'm trying to iterate over two variables, with the names "category" and "month_created". The code is below...

Merging two data sets based on ranges and assign a number

I would like to merge two data sets where the first dataset contains probabilities. The second data set contains a column indicating the num...

Negative statistic chi2 after hausman test

Hello everyone, I have panel data and my dependent variable is a dummy variable. N=801 (individuals) and T=8 (periods) I am running xtlogi...

Stata vs Mplus for LPA?

Dear researchers, I am trying to conduct Latent Profile Analysis but wonder conducting it with Stata doesn't get me into any trouble. ...

How should I fix this error in my scatter plot?

Hello, I've been trying to make a more advanced scatter plot and have managed to figure out the bits and pieces of it. Essentially, I ...

Controlling for differences caused by occupation

Hello - I am new to the world of econometrics and am working on a small research paper. I am trying to identify the difference in hourly wag...

Using the character ehat_t in the y-axis

Dear all, I hope you are all keeping well! I want to use the character ehat_t in my y-axis So I tried to add to my code the following ...

geonear r(459) error message advice

Hi All, I am trying to calculate the distance of disaster occurrences from specific place names within a 50km radius. The code that I am...

Different lagged variables

Hello, I am trying to generate a variable based on the lagged values of other variables, where the time variable is actually the individual...

Plotting nonlinear predicted probabilities from multivariate model against a continous variable

Apologies if this has already been answered, but I have been unable to find a clear answer/I am not exactly sure what I am looking for. I wo...

Help manipulating data groups

Hello, I am currently working with data about initial operations and subsequent readmissions which are recorded as separate observations. T...

technical inefficiency with determinants and marginal effects

I am doing research in tax efficiency. I would like to determine tax effort (persistent and transient including determinants) and marginal e...

Stata overrides the command for which level to omit in a regression

Hi Statalist, I would like to seek help for a problem I encountered. I tried to estimate a regression where I regress outcome variable IHS...

Calculating 95% CI of difference in AUC

Array After running 2 different logistic regressions with the predict command and then running roccomp- how do we calculate the 95% confide...

Accessing ado files (icalc) to save to a newer computer

Hi, This is a basic question (for which I apologise), but it's tripping me up. I'm trying to access the "icalc" suite of...

Margins for panel

Dear all, I am having a macro panel for a larger period of years (1945- 2020) and for large number of countries with the solid macro varia...