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Forum: Stata

Stata usage and programming, Stata help

  1. Create correlation coefficients and p-values as variables

    I need assign a correlation coefficients and its p-values to a variable I can do this for the correlation coefficient using: egen corr_IBSMR =...

    Started by kmatthews‎, Yesterday 03:34 PM
    egen corr pwcorr
    • Replies: 2
    • Views: 79
    Today, 02:59 AM Go to last post
  2. multiple response tables

    I have a multiple response variable: race=participants can select more that one race. race1 race2 race3 so on I need to create a table in...

    Started by Marvin85‎, Yesterday 12:08 PM
    multiple response, tab
    • Replies: 1
    • Views: 52
    Yesterday, 10:15 PM Go to last post
  3. Error while using vif command

    Hi all, I generated a regression model in stata with the mvreg command. (.mvreg dv = iv1 iv2 iv3 etc.) After that I want to assess the data on...

    Started by surveyman‎, Yesterday 11:40 AM
    • Replies: 0
    • Views: 34
    Yesterday, 11:40 AM Go to last post
  4. How to keep the IDs only from the master dataset while merging?

    Hi, I have 2 datasets a master and a second one that has some extra variables that I want to use. The IDs in the two datasets are not quite the same,...

    Started by leilafg‎, 08-20-2014 05:27 AM
    • Replies: 4
    • Views: 147
    Yesterday, 05:27 AM Go to last post
  5. Merging two datasets, one with repeated IDS!

    Hi, I have a main dataset that I am working on and a second one that is relevant to my main dataset via ID number of the subjects. I am using STATA...

    Started by leilafg‎, 08-18-2014 08:48 AM
    • Replies: 2
    • Views: 104
    08-18-2014, 05:26 PM Go to last post
  6. Matrix for storing results from a tabulate

    Hi I hope i will write well my problem. I need to store the results from this tab variable1 variable2 in the matrix form. But additional to...

    Started by jfca283‎, 08-18-2014 03:43 PM
    • Replies: 0
    • Views: 83
    08-18-2014, 03:43 PM Go to last post
  7. Question How to convert a data stored as year (only) to 01/01/year?

    Hi, I am using STATA and in my dataset date of birth is as year (no md). I want to calculate the age. So I need the dob as mdy do that can format it...

    Started by leilafg‎, 07-23-2014 05:13 PM
    • Replies: 6
    • Views: 307
    08-18-2014, 02:46 PM Go to last post
  8. Asynchronous DCC-GARCH

    Has anyone worked on an Asynchronous or Threshold DCC-GARCH in STATA? I've been trying to figure out how to write the code and am looking for a...

    Started by vikingo‎, 08-18-2014 12:54 PM
    dcc, dcc-garch, garch, mgarch, stata
    • Replies: 0
    • Views: 38
    08-18-2014, 12:54 PM Go to last post
  9. Tipping points

    Hi, I have some basic descriptive data for religious personnel over a 20 yr time period. I graphed this data in Stata. I am trying to figure out...

    Started by Counting‎, 08-15-2014 09:24 AM
    • Replies: 4
    • Views: 143
    08-15-2014, 03:47 PM Go to last post
  10. gllamm model

    Hi everyone, I am struggling with hierarchical SEM, which gllamm should be able to perform. In detail I have a data set with one variable which...

    Started by hvalica‎, 08-14-2014 08:29 AM
    • Replies: 0
    • Views: 61
    08-14-2014, 08:29 AM Go to last post
  11. Creating Community-level Categorical Variables from Household Level data

    Good day everyone, I am trying to create community-level categorical variables from equivalent household categorical variables. For example I have a...

    Started by Busi‎, 08-07-2014 05:27 PM
    • Replies: 3
    • Views: 215
    08-09-2014, 01:28 PM Go to last post
  12. Bootstrapping residuals

    Hi! I am writing my master thesis in mutual funds in norway. in this I have to bootstrap some residuals according to the method of Kosowski et al...

    Started by neztirual‎, 08-08-2014 11:07 AM
    • Replies: 0
    • Views: 88
    08-08-2014, 11:07 AM Go to last post
  13. Fixed effects regression for panel data - help needed, please.

    I wonder could people shed some light on a issue for me, please? Having carried out a unit root test I have determined that all my variables are...

    Started by seanyshuffler‎, 08-06-2014 08:56 AM
    • Replies: 0
    • Views: 108
    08-06-2014, 08:56 AM Go to last post
  14. Date variable- only month

    Hi Guys, I have a date variable, save in the type below. example 03 Jul 14 DateToday long %dD_m_Y I would like to...

    Started by Marvin85‎, 07-24-2014 11:05 AM
    date, month
    • Replies: 2
    • Views: 174
    08-05-2014, 11:01 PM Go to last post
  15. Ranking in Stata

    Hi all I have a panel data with the following variables: firm......year.......Carhart alpha So, I would like to assign a rank from 0 to 1 for...

    Started by Man‎, 08-01-2014 06:07 AM
    • Replies: 3
    • Views: 173
    08-05-2014, 10:29 PM Go to last post
  16. Need help with VAR

    Hi, I am planning to run VAR to gather insight about the feasibility of inflation targeted monetary policy. I have been reading up on the three...

    Started by Zaineb Naveed‎, 08-05-2014 02:44 AM
    var
    • Replies: 0
    • Views: 98
    08-05-2014, 02:44 AM Go to last post
  17. Ordinal logistic regression: g-o-f test in Stata13

    I'm running an analysis on ordinal data in Stata13. I'm looking at 7 different DVs (separately), so parsimony is crucial--I will be repeating every...

    Started by layacoop‎, 07-28-2014 01:59 PM
    chi-square, composite score, goodness-of-fit, ordinal logistic
    • Replies: 1
    • Views: 115
    08-01-2014, 06:38 PM Go to last post
  18. Question Graphically check linearity in logit regression

    Hi all, I am running a logit regression where the outcome variable is binary. I am interested in checking, graphically, whether the relationship...

    Started by Phaedrus‎, 07-21-2014 07:50 AM
    2 Pages
    1 2
    • Replies: 21
    • Views: 538
    08-01-2014, 06:23 PM Go to last post
  19. Keep IDs - "too many literals" error

    Hey guys, I want to keep only certain sample of my population based on agency_id. My try was keep if agency_id==1 | agency_id==2...

    Started by Marvin85‎, 04-29-2014 11:57 AM
    error, keep id, too many literals
    • Replies: 14
    • Views: 647
    07-31-2014, 11:25 PM Go to last post
  20. Tabout - I need to print the database used

    Hi I hope you can help me I print the following result with this loop in excel cd C:\Users\JC\Bases\Stata local filelist: dir . files "*.dta"...

    Started by jfca283‎, 07-31-2014 11:13 AM
    • Replies: 0
    • Views: 82
    07-31-2014, 11:13 AM Go to last post
  21. joinby / merge help

    Hi All! After going through the help files on STATA for joinby and merge I still can't figure out how to do the following: For example I have...

    Started by rukimaru‎, 07-31-2014 02:01 AM
    • Replies: 0
    • Views: 96
    07-31-2014, 02:01 AM Go to last post
  22. Interpreting quadratric interaction in logistic regression

    I am running a survey-weighted logistic regression (svy: logit) to determine the significant predictors of a particular medical outcome. I have...

    Started by sharatp‎, 07-30-2014 06:20 PM
    • Replies: 0
    • Views: 35
    07-30-2014, 06:20 PM Go to last post
  23. Indexing of data to make it comparable

    Hi everybody, I am a new STATA user and I would need to create an index. I have values per month for two products. I would like to make their...

    Started by kstrodel‎, 07-30-2014 04:07 PM
    comparing, indexing
    • Replies: 0
    • Views: 97
    07-30-2014, 04:07 PM Go to last post
  24. Exclamation no observation error r(2ooo)

    i have panel data set as follow, . xtset cn year panel variable: cn (unbalanced) time variable: year, 1970 to 2012 ...

    Started by jawhar amini‎, 07-26-2014 10:32 AM
    • Replies: 6
    • Views: 222
    07-30-2014, 06:00 AM Go to last post
  25. household expenditure analysis

    hi, this is the first time I am using stata. I am trying to analyse the change in household expenditure with respect to the head of the household. ...

    Started by kiranj‎, 07-29-2014 09:34 AM
    • Replies: 0
    • Views: 93
    07-29-2014, 09:34 AM Go to last post
  26. Question Single and double quote issue with a label define

    I'm trying to create a label define with text that has single and double quotes. Is there a way to escape these characters? Here is some of my...

    Started by jerry898969‎, 07-25-2014 03:21 PM
    • Replies: 5
    • Views: 163
    07-29-2014, 07:34 AM Go to last post
  27. autocorrelation and heteroskedasticity tests (panel data)

    Dear all, I have an unbalanced panel data and I want to estimate the fixed effects model. I have the following regression specification: x =...

    Started by Aiko‎, 07-25-2014 11:02 AM
    • Replies: 3
    • Views: 151
    07-25-2014, 10:40 PM Go to last post
  28. Value Labels to many Variables

    I have a series of variables with responses 1=Yes 0=No. I want to label the values of these variable in a efficient way. This is my try but it is...

    Started by Marvin85‎, 07-14-2014 01:02 PM
    foreach, label values
    • Replies: 2
    • Views: 155
    07-24-2014, 08:56 AM Go to last post
  29. Controlling for autocorrelation in a regression

    Hi all I have a panel data; I ran the Hausman test and it showed a significant p-value, thus I conduct my regression by using 'xtreg' command +...

    Started by Man‎, 07-22-2014 08:12 AM
    autocorrelation
    • Replies: 0
    • Views: 146
    07-22-2014, 08:12 AM Go to last post
  30. Outreg2 - table with summary statistics

    I run the regression and then type: outreg2 using myfile, sum word seeout replace In Stata the table is seen with obs, mean, std.dev, min and...

    Started by Eric_B‎, 06-15-2014 02:15 AM
    • Replies: 1
    • Views: 278
    07-22-2014, 02:19 AM Go to last post
  31. Volatility of abnormal returns.

    Hi all, When employing raw returns, one defines performance volatility as the standard deviation of these raw returns over some prior period (say...

    Started by Man‎, 07-21-2014 11:04 AM
    • Replies: 0
    • Views: 105
    07-21-2014, 11:04 AM Go to last post
  32. How to save constant terms (_cons) as a new variable in STATA.

    Hello, I have an unbalanced panel data. I examine 850 mutual funds during the period of 2000-2013. I ran regressions to estimate performance by...

    Started by Man‎, 07-15-2014 03:45 AM
    constant, intercept, new variable, save, stata
    • Replies: 3
    • Views: 244
    07-21-2014, 02:30 AM Go to last post
  33. Power analysis for a 4x2 Experimental Design

    Hi everyone, I am trying to run a power analysis for a 4x2 design based on a 6x2 design. So far, the examples I've found online are for simpler...

    Started by g2007‎, 07-20-2014 12:29 PM
    • Replies: 0
    • Views: 140
    07-20-2014, 12:29 PM Go to last post
  34. merging the same number two datasets into one, but does not work

    deleted, no long available

    Started by colstat‎, 07-20-2014 12:34 AM
    • Replies: 0
    • Views: 128
    07-20-2014, 12:34 AM Go to last post
  35. Why are the predicted values similar and the regression coefficients dissimilar?

    Hello, Have searched the boards for an answer to this question to no avail, any help would be greatly appreciated. I'm running two regressions...

    Started by deesiel‎, 07-17-2014 10:21 AM
    • Replies: 7
    • Views: 276
    07-17-2014, 02:50 PM Go to last post
  36. Smile Generate Variable "quarterly_rebalancing" if "date" < "rebalancing"

    Hi all, I have about 8 years daily stock returns that I would like to transform to cumulative returns over a quarters. I would like to create a...

    Started by amazon‎, 07-10-2014 12:13 AM
    rebalancing date quarter
    • Replies: 2
    • Views: 201
    07-16-2014, 09:32 PM Go to last post
  37. How to multiply observations within one variable in Stata

    I want to multiply observations within a variable in stata. Here's how my data looks like: ID Return 1 1.1...

    Started by Man‎, 07-16-2014 11:15 AM
    • Replies: 2
    • Views: 199
    07-16-2014, 07:18 PM Go to last post
  38. Multiplication of two variables one of which is lagged

    I have a panel data. Basically I need to generate a new variable for each id and year that will be the product of the following formula: new_var(t)...

    Started by Man‎, 07-16-2014 01:27 PM
    • Replies: 2
    • Views: 152
    07-16-2014, 07:17 PM Go to last post
  39. Creating a new variable from several existing ones

    Hello, I already have ID variable, DATE variable, and now I want to create a new variable that will assign a certain number (say new id) to each...

    Started by Man‎, 07-15-2014 07:02 AM
    new variable
    • Replies: 3
    • Views: 188
    07-16-2014, 07:16 PM Go to last post
  40. Getting alphas for each fund in each year and saving them

    :wave:Dear all, I have an unbalanced panel data of monthly returns on 200 funds over 10 years. I need to estimate Fama-French alphas (with HAC...

    Started by Aiko‎, 07-15-2014 07:56 AM
    • Replies: 0
    • Views: 103
    07-15-2014, 07:56 AM Go to last post
  41. Using .dat file on Stata

    Hello all, I need to use a .dat file in Stata. I have never used this type of file before and do not know how to convert it to a format which...

    Started by econlearner‎, 06-14-2014 02:52 PM
    • Replies: 3
    • Views: 293
    07-13-2014, 11:29 AM Go to last post
  42. Unhappy Help Needed :( - Problem Basic Reshape - Stata

    Hi everybody, I have the following data: date A AAP AAPL ABC ACN ACT ACXM 8/15/2006 9.3 0.4 3.9 0.3 1 1 0.9...

    Started by amazon‎, 07-12-2014 03:58 PM
    reshape long
    • Replies: 1
    • Views: 155
    07-13-2014, 12:27 AM Go to last post
  43. Unhappy Help Needed

    Hello everyone I am new to stata and have a question to all you Pro guys: I have two variables, disease A and B. If these two disease occur at...

    Started by Usman Khalid‎, 07-08-2014 01:18 PM
    • Replies: 1
    • Views: 204
    07-12-2014, 12:53 AM Go to last post
  44. stratifying a box plot for two variables

    Dear all, this is my problem: I have two depvar and I want to graph them over two different variables in a way to obtain a combination of the two....

    Started by Rerun‎, 07-09-2014 12:08 PM
    • Replies: 0
    • Views: 143
    07-09-2014, 12:08 PM Go to last post
  45. testing size difference between 2 groups

    Hi, I am trying to compare the proportion of spending (all values except those in the percent column are in dollars) on Policy between each YC. The...

    Started by winnie1825‎, 07-07-2014 01:39 PM
    • Replies: 0
    • Views: 181
    07-07-2014, 01:39 PM Go to last post
  46. limited dependet variables : xtreg ,fe or probit / predict yhat or ..... . ??

    Dear Sir, I am having a dependent variable Credit Rating and it is a limited dependent variable. Independent variables are profibitability, firm...

    Started by ivobaren‎, 07-04-2014 05:06 PM
    • Replies: 0
    • Views: 242
    07-04-2014, 05:06 PM Go to last post
  47. STATA panel regression with fixed effects : xtreg dependent independent,fe

    Dear Sir, My professor told me to use stata with the following commands: 1 Encode Cusip,gen(Cusip1) 2 xtset Year Cusip1 3 xtreg dependent...

    Started by ivobaren‎, 07-03-2014 07:09 PM
    • Replies: 1
    • Views: 165
    07-04-2014, 02:19 AM Go to last post
  48. problem merging 1:1

    Hello all, I'm trying to merge two data sets. Data 1 contains the following variables: interview date, household longitude and latitude,...

    Started by Keily‎, 07-01-2014 11:57 AM
    1:1, merge, merging, stata
    • Replies: 2
    • Views: 215
    07-02-2014, 02:46 PM Go to last post
  49. How to interpret log independent variable in a fixed effects model

    Hi, I'm currently doing an fixed effects analysis with vaccine incidence as the dependent variable and log non-hospital healthcare spending as the...

    Started by samiam9508‎, 07-02-2014 09:05 AM
    • Replies: 1
    • Views: 206
    07-02-2014, 01:20 PM Go to last post
  50. Recode all variables missings

    How can I recode -99=. for all my variables? I think there is something that represent all variables maybe *? Or foreach X? I am not so familiar...

    Started by Marvin85‎, 06-30-2014 10:30 AM
    recode all
    • Replies: 4
    • Views: 230
    07-02-2014, 08:44 AM Go to last post
  51. Merging three files, building panel data and regression

    I'm not a complete newbie in Stata, but I think I'm probably newbie by the standards of the forum, I think. The thing is, I'm trying to build a...

    Started by Daeiooo‎, 07-01-2014 09:29 PM
    merge variables, panel data, stata
    • Replies: 1
    • Views: 151
    07-02-2014, 02:29 AM Go to last post
  52. graphing an interaction in Stata

    Hello, I am trying to find the correct way to graph an interaction effect between two continuous variables in Stata. My regression, the code is ...

    Started by jesse‎, 11-19-2012 02:31 AM
    • Replies: 2
    • Views: 3,968
    06-30-2014, 08:43 AM Go to last post
  53. Question How to draw cubic splines after Cox regression in Stata 11.1?

    Hi everyone:), In a cohort study, I would like to draw cubic splines, including HR and 95% CI, after Cox regression adjusted for age and sex. Yet,...

    Started by xiaoyanhuang‎, 11-10-2011 02:10 PM
    • Replies: 11
    • Views: 5,711
    06-26-2014, 03:26 AM Go to last post
  54. How to construct industry portfolio?

    Good afternoon, all! My problem is constructing weights of industry portfolio properly in STATA. I have panel data of market capitalization,...

    Started by Onlyvictory‎, 11-21-2012 10:57 AM
    • Replies: 6
    • Views: 974
    06-25-2014, 10:27 AM Go to last post
  55. Basic t-test question

    Hi everyone, I have to conduct a t-test for a proportion in Stata and was going to use the command prtest. However, this command calculates a z...

    Started by takemeaway‎, 06-25-2014 07:30 AM
    • Replies: 1
    • Views: 281
    06-25-2014, 08:22 AM Go to last post
  56. loop regression based on variable

    Dear statisticians, I'm trying to loop a regression on a panel data set. I have the following variables: iden1: cross sectional variable...

    Started by CPJR‎, 06-17-2014 03:17 PM
    forvalues, loops, panel data
    • Replies: 1
    • Views: 259
    06-22-2014, 05:47 AM Go to last post
  57. Modeling ARCH effects in Vector Autoregression

    Hi all, I have constructed a VAR(p) model with 3 time series in Stata. When I predict the residuals and run an AR(p) model (with p=1, 2, 3, and 4)...

    Started by claimed101‎, 06-21-2014 07:04 AM
    arch, heteroskedasticity, var
    • Replies: 0
    • Views: 281
    06-21-2014, 07:04 AM Go to last post
  58. Ratio as an independent variable

    Hi, I am planning to use ratio of the type of ownership as the independent variable in one of my Tobit models. I am considering three ratios;...

    Started by Fernando1981‎, 06-20-2014 12:56 AM
    • Replies: 0
    • Views: 233
    06-20-2014, 12:56 AM Go to last post
  59. How can I extract 10th occurrences in panel data Today

    Hi All I have panel data which consist of stock prices of 1000 stocks over 20 years. I want to get the stock price of the 1st & the 10th trading...

    Started by Sam J‎, 06-19-2014 01:31 AM
    • Replies: 1
    • Views: 213
    06-19-2014, 10:33 PM Go to last post
  60. Exclamation What is the stata command for two way repeated measures ANOVA??!!

    Hi :wave: I was hoping if anyone can clear up this minor confusion with regards to stata (im a beginner) and it would be great if someone can...

    Started by Emma121‎, 06-17-2014 03:57 AM
    anova, commands, repeated measure anova, stata, stata 12
    • Replies: 1
    • Views: 181
    06-19-2014, 07:08 AM Go to last post

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