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Forum: Stata

Stata usage and programming, Stata help

  1. Requesting help with creating a semi-complex variable

    My datafile looks something like this: COUNTRY REGION YEAR GDP Albania ECA 1995 5 Albania ECA...

    Started by solarium‎, Yesterday 09:42 PM
    • Replies: 1
    • Views: 54
    Yesterday, 10:34 PM Go to last post
  2. Business Calendars/ STATA 11

    Hi all; I use STATA 11 and i would like to create my own business calendar. I have daily data starts from 05/01/2004 to 25/07/2014. i would be...

    Started by Nour‎, 09-14-2014 05:17 AM
    • Replies: 1
    • Views: 107
    Yesterday, 10:29 PM Go to last post
  3. Create tables /// export tab results directly to excel

    I generating a descriptive report for my boss ( that is just frequency tables). I tab everything in stata and the copy as a table and paste it excel....

    Started by Marvin85‎, 09-03-2014 09:46 AM
    • Replies: 7
    • Views: 325
    09-16-2014, 08:16 AM Go to last post
  4. Transformation of multiparty partnerships into dyadic relationships

    Dear Stata gurus, I'd like to ask for your help once more. The problem is as follows: I have data on multiparty partnerships structured in the...

    Started by Slavutich‎, 09-13-2014 06:04 PM
    • Replies: 2
    • Views: 150
    09-15-2014, 03:41 AM Go to last post
  5. statistical tests for a special period of time

    Hi, I need to run statistical tests for a special period of time, not for all period how can i do that? Thanks in advance

    Started by Nour‎, 09-12-2014 05:41 AM
    • Replies: 1
    • Views: 104
    09-14-2014, 07:18 PM Go to last post
  6. Help with matrix and loop

    Hi I'm trying to generate a matrix with the following code matrix A=J(17,8,0) forval i=1/17 { forval j=0/7 { quietly summarize cise if...

    Started by jfca283‎, 09-02-2014 11:50 AM
    • Replies: 3
    • Views: 164
    09-14-2014, 12:09 PM Go to last post
  7. Need help with -keep-/-drop- function in Stata

    Hello everybody, I'd like to ask for your help with -keep-/-drop- function in Stata. The problem is as follows: suppose I have a column, called...

    Started by Slavutich‎, 09-10-2014 03:35 PM
    • Replies: 2
    • Views: 173
    09-12-2014, 06:43 AM Go to last post
  8. Export three way table to excel o csv?

    Hi I hope you can help me. I need to export multiple tables of this kind table varx1 sex education , c(mean ing_t_p) center row col...

    Started by jfca283‎, 09-09-2014 04:31 PM
    • Replies: 1
    • Views: 123
    09-10-2014, 05:01 AM Go to last post
  9. ML est. with oprobit per Huasman et al in Stata 13?

    Hi. I am using Stata IC 10 and having difficulty implementing the ml estimation to determine sensitivity to misclassification in limited dependent...

    Started by JFalcon‎, 09-09-2014 11:19 AM
    misclassification, ologit, oprobit, stata 13, stata10
    • Replies: 1
    • Views: 116
    09-09-2014, 03:24 PM Go to last post
  10. Regression lines parallelism test in STATA

    Hello everybody, Please help me with the following issues. ANCOVA rests on the assumption that the regression lines are parallel, or that...

    Started by kiton‎, 09-08-2014 09:13 PM
    • Replies: 6
    • Views: 176
    09-09-2014, 10:53 AM Go to last post
  11. Comparing proportions in a subgroup to proportions in the overall population

    I am trying to compare the proportion of patients in my subgroup with the outcome of interest to the proportion of patients in the overall population...

    Started by apandya‎, 09-08-2014 11:41 PM
    proportion test, stata, subgroup
    • Replies: 3
    • Views: 91
    09-09-2014, 10:32 AM Go to last post
  12. Correlation between 2 variables across the quantiles of independent variable

    Hi, I need to estimate correlation between 2 variables across quantiles of volatility (volatility is an independent variable).. I want to show how...

    Started by Nour‎, 09-08-2014 11:12 AM
    • Replies: 2
    • Views: 114
    09-09-2014, 08:49 AM Go to last post
  13. Post string values (several male names) to numerical var

    Hi, this is my first question here, i'm learning STATA. I have a string var ("names") and I need to make a list of a group of those names in order...

    Started by cafu‎, 09-06-2014 01:41 PM
    names, numerical variable, string variable
    • Replies: 1
    • Views: 149
    09-08-2014, 08:04 AM Go to last post
  14. Find the lowest ordinal variable score of many variables

    Hello guys, I have an task to do that is a little bit weird and could find a solution. I have a series of liker-scale ordinal variables. Do...

    Started by Marvin85‎, 09-02-2014 04:40 PM
    egen, gen, list, scale
    • Replies: 2
    • Views: 178
    09-03-2014, 09:34 AM Go to last post
  15. Wordfreq command (from Wordscores) replaces variables

    Hello. I'm trying to test Wordscores using the example here. Unfortunately, when creating new variables using the command: wordfreq...

    Started by Edmund‎, 09-02-2014 11:09 AM
    • Replies: 0
    • Views: 85
    09-02-2014, 11:09 AM Go to last post
  16. Stata Unbalanced Panel Data - which ttest should I use to compare means?

    Hi, Apologies if this question is very basic but I have spent hours looking online and in forums such as this one for an answer and I am still...

    Started by statauser2109‎, 09-02-2014 04:06 AM
    averages, panel data, stata, ttest
    • Replies: 0
    • Views: 120
    09-02-2014, 04:06 AM Go to last post
  17. 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, 08-22-2014 12:08 PM
    multiple response, tab
    • Replies: 3
    • Views: 257
    08-28-2014, 10:51 PM Go to last post
  18. 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: 5
    • Views: 286
    08-26-2014, 05:21 PM Go to last post
  19. Complex reshape

    Hello guys, I really need help with this on. I have a dataset of healthcare organization with the following variables: ContactID : organization...

    Started by Marvin85‎, 08-23-2014 11:20 AM
    • Replies: 4
    • Views: 269
    08-26-2014, 01:21 PM Go to last post
  20. 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, 08-22-2014 03:34 PM
    egen corr pwcorr
    • Replies: 2
    • Views: 220
    08-23-2014, 02:59 AM Go to last post
  21. 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, 08-22-2014 11:40 AM
    • Replies: 0
    • Views: 90
    08-22-2014, 11:40 AM Go to last post
  22. 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: 134
    08-18-2014, 05:26 PM Go to last post
  23. 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: 121
    08-18-2014, 03:43 PM Go to last post
  24. 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: 388
    08-18-2014, 02:46 PM Go to last post
  25. 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: 64
    08-18-2014, 12:54 PM Go to last post
  26. 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: 171
    08-15-2014, 03:47 PM Go to last post
  27. 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: 80
    08-14-2014, 08:29 AM Go to last post
  28. 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: 263
    08-09-2014, 01:28 PM Go to last post
  29. 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: 113
    08-08-2014, 11:07 AM Go to last post
  30. 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: 134
    08-06-2014, 08:56 AM Go to last post
  31. 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: 200
    08-05-2014, 11:01 PM Go to last post
  32. 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: 201
    08-05-2014, 10:29 PM Go to last post
  33. 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: 118
    08-05-2014, 02:44 AM Go to last post
  34. 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: 150
    08-01-2014, 06:38 PM Go to last post
  35. 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: 658
    08-01-2014, 06:23 PM Go to last post
  36. 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: 741
    07-31-2014, 11:25 PM Go to last post
  37. 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: 108
    07-31-2014, 11:13 AM Go to last post
  38. 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: 124
    07-31-2014, 02:01 AM Go to last post
  39. 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: 51
    07-30-2014, 06:20 PM Go to last post
  40. 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: 129
    07-30-2014, 04:07 PM Go to last post
  41. 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: 268
    07-30-2014, 06:00 AM Go to last post
  42. 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: 112
    07-29-2014, 09:34 AM Go to last post
  43. 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: 196
    07-29-2014, 07:34 AM Go to last post
  44. 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: 181
    07-25-2014, 10:40 PM Go to last post
  45. 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: 184
    07-24-2014, 08:56 AM Go to last post
  46. 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: 175
    07-22-2014, 08:12 AM Go to last post
  47. 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: 349
    07-22-2014, 02:19 AM Go to last post
  48. 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: 127
    07-21-2014, 11:04 AM Go to last post
  49. 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: 287
    07-21-2014, 02:30 AM Go to last post
  50. 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: 171
    07-20-2014, 12:29 PM Go to last post
  51. 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: 148
    07-20-2014, 12:34 AM Go to last post
  52. 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: 314
    07-17-2014, 02:50 PM Go to last post
  53. 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: 237
    07-16-2014, 09:32 PM Go to last post
  54. 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: 260
    07-16-2014, 07:18 PM Go to last post
  55. 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: 183
    07-16-2014, 07:17 PM Go to last post
  56. 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: 220
    07-16-2014, 07:16 PM Go to last post
  57. 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: 125
    07-15-2014, 07:56 AM Go to last post
  58. 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: 359
    07-13-2014, 11:29 AM Go to last post
  59. 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: 192
    07-13-2014, 12:27 AM Go to last post
  60. 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: 235
    07-12-2014, 12:53 AM Go to last post

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