Help Fixing Bar Graph of GDP and Dummy Variables

Dear all, I am using Stata 16, on mac. I used the following command in Stata: reg lnGDP lnagedpop lnpopulation WestCoast EastCoast, robust...

Trouble Generating Variable dependant on period

Array Above is a picture of a subset of my data. hs10 refers to a specific product being sold and m_val is a value the product takes on. W...

Stata returning missing when converting string date

Dear all, I have dates in two formats in a single variable one is 20-Apr-19 the other is 21-APRIL-2019. Stata is returning missing when con...

Different I-square results for meta summarize and meta forestplot using random empirical Bayes method

Hi The meta forestplot using random(ebayes) appears to produce a different value for the I2 result compared to the output for meta summari...

"Data have changed" dialog box

I searched the forum for this, but I didn't find anything. Sorry if it's a repeat question. In my workflow, I work from original d...

meta forestplot error in stata 16

Hello I am running several meta forestplots for subgroups which worked fine in the version of stata 16 on 14 Nov. meta forestplot _id ou...

Searching within strings

I have strL a variable (pgttype) that contains several results such as: "Aneuploidy CRMI 13, 15, 16, 17, 18, 21, 22, X, Y" ...

Method for continuous predictor and dichotomous dependent variable

Hi everyone, I am working on a research project asking: Do lower rates of school satisfaction and school engagement influence students’ su...

simulation study

so i have to write a short programe for a simulation study, so far i have written program define mysim drop _all set obs 19 gen b =inli...

Set Seed Random Sample

I would like to obtain a nationally representative sample from a (non representative) survey data set thereby using every individual from th...

Multiline model name for long variable names using esttab

Hi users, I am using esttab to generate tables in Latex. I have long model name that I want to appear in two lines because if I keep them ...

Clustered Errors and fixed effect on the same level

Hello Statalist-Forum, I was wondering if you could help me with a problem: I have a continous outcome variable (a health score) and info...

Division into two groups

Dear statalists, I am running an analysis with an unbalanced dataset for 10 years. I would like to see whether the results differ for two ...

one year survival - data management

good day all I have a list of children with 2 variables "date of birth" and "date of death". Both are recorded as nume...

Comparing two waves with RE-Logit

I am currently using Panel data from the SOEP to analyze and compare political interest in 2013 and 2017. My final Dataset contains around 1...

xtreg, fe robust: xtoverid error(2b) operator invalid when correcting Hausman test (V_b-V_B is not positive definite) due to year dummies

Dear Statalisters, I am analyzing a panel dataset with year dummies over a period of 2000-2018 and apparently like many other Stata begin...

Medeff command: invalid mediate (error r(198))

Dear Statalists, Could you please tell me the reason why when I type the following command: medeff (regress edb51 acled gdpgrowth1 gdppe...

Doubt on Heckprob model results

Hello everybody, I'm running a Heckman selection model based on a heckprob. I have some categorical variables such as grup_ha grupo_ed...

Help creating graph for multiple linear regression

Dear all, I am using Stata 16, on mac. I am estimating the regression: reg GDP agedpop population WestCoast EastCoast, robust. agedpop(=p...

Exporting residuals vs prediction data

Hi, So, I need to make a residuals versus predictor plot. However, the graphics aren't working in STATA. Yes, I've tried just abou...

how to delete specific observations

Hello everyone I need to delete the firms that does not have data for three years consecutively. please teach me how to do it for example...

Wagstaff concentration Index for binary outcome

Hi, I have read in existing literature that if we are dealing with a binary outcome (i.e th individual went for prenatal care/did not go f...

How to generate a new variable based on existing variables

Dear Stata experts, I have a dataset like below. "tiea"=1 means in a given year the company has a connection to the Senator ...

IKEA Corporate Social Responsibility (IKEA CSR): a brief overview

IKEA Corporate Social Responsibility (CSR) efforts are led by Chief Sustainability Officer, Pia Heidenmark Cook. The home improvement and fu...

ARDL lag coefficients

Hi everyone or anyone who knows this better than me, I am trying to fit the following short-run equation using ARDL, following in a higly ...

Interpreting a non-linear relationship with predicted values and margins plot

I am trying to interpret a non-linear relationship in a fixed effects model. Attached is my Stata output. As you can see from the output, ...

jackknife loop with wrong number of observations

forvalues i = 1/139 { reg fawtd fdistockgdp if seqnum != `i', robust outreg2 using table, append excel } I'm running the abov...

Calculation of standard errors after predictive margins: how are they computed?

Hello, I'm struggling how standard errors after -margins- are calculated, e.g. after -logit-. I am able to reproduce the productive ma...

Error terms for Time Series Regression with a Panel Variable

Dear all, For my master thesis, I would like as a first step to run a Fama-French three factor regression, and compute idiosyncratic volat...

How to change display of scientific notation of summary statistics to nummeric?

Stata 15.1 I am attempting to create a descriptive statistics table for my thesis. However, I found that variables with large numbers are ...

How to regress categorical variables without base

Hello, Currently I am investigating the impact of industry categorization (categorical variable) on premium's paid (continuous variabl...

Command problem with counting sample firms smaller than the firm for each country in each year (panel data)

Hi, guys, I would like to measure the percentage of sample firms smaller than the firm for each country in each year. But I don't know...

Mean of a group minus the observation's value in Panel data

Hi, I have a data structure like this: IO-IOarea-Year-index 1----4-------1997-0 2----4-------1998-2.2267373 3----5-------1998-0 4---...

Logging results in forvalues-loop: command lines are not shown in output-logfile

Hello, I want to save some output results using the -log- command. This works fine if I use -log- as in the example below: the command lin...

Reshaping Data

Dear members I am facing an issue with some data which is available with me in MS-Excel in the following format: SALES SALES SAL...

method for omitted variable bias cross sectional analysis

Dear all, I have a cross sectional analysis to analyse the effect of head circumference (continuous variable) on cognititve skills (continu...

Panel regression model with N>T and serial autocorrelated error.

Dear all, I've been trying to estimate a panel regression model on a dataset with N>T, where N is the number of cross-sectional uni...

Comparing non nested models with xtmelogit

Dear all, I am using xtmelogit to run a multilevel logistic regression with PISA data. My data is hierarchical (individuals nested into sc...

LOOP ERROR no observations defined

Dear Stata Users I have been running a loop for each out of 5 years. Code: clear all cd "\\registry\2017" save appended_2017...

Calculate volatility of daily returns by use of GARCH

Hi, We try to calculate the forecasted implied volatility of daily returns by use of the GARCH (1,1) model. So far we don't get any va...

Replace observations with another group in Panel data

Hi, I have panel data and I want to replace observations of one group with the same variable's observations for another group. I have 3...

Interpreting significance - HLM using REML and Kenward-Roger-corr.

Dear Statalisters, I struggle with interpreting my results from multilevel linear regressions, using restricted maximum likelihood and Ken...

Using loops to create local from other locals

I tell Stata that: Code: local 1 "a b c" local 2 "d e f" local 3 "g h i" and I want it to create the foll...

creating loop

Hi, I am new in stata, so I am doing long commands for a simple variable generating. I want to shorten the below commands. As you see only ...

Problem in reporting Arellano-Bond test for auto-correlation after xtabond2

Hello dear Stata Users, I am estimating a dynamical panel (370 firms; T=10) where my dependent var is leverage and my independents are the ...

why categorical variables regression only shows one group result?

Hey, I am running a regression with categorical variables. But I am quite confused why it only shows the second group result? Code: gen...

bootstrap test for a multilevel mediation analysis

Dear all, I'm trying to perform a 2-2-1 multilevel analysis, and my DV is binary. I used the command "melogit" by step to ac...

How get variable list for a condition

I wonder if its possible get a variable list for a condition, example: Code: clear all sysuse auto ds, has(type string) unab allvars: _...

average using past group information

Hi all, I have company-level information as follows. For each company id in a country, I have the current location (current_loc) and new l...

Analysis of Stock market data in Stata - First Time

Dear All, I have daily stock market data of 174 firms from 2000 to 2019 (about 4400 prices per stock). I also have the market indexes for ...

Expand data

Dear Statalist Members, I am looking for help with expanding my dataset below to include a categorical variable that takes the values 1 to...