Using stata svyset command with acs pums acs public use. Ipums actually allows you to download extracts as csvs now sascii is unnecessary. Use svyset to identify the survey design characteristics. Albania 2005 lsms 4 strata central, coastal, mountain, tirana 455 primary sampling units psu 8 hhs by psu 455 3,640 hhs. To analyze data from a sample survey, you need to make sure that the design features of the. Datasets were sometimes altered so that a particular feature could be explained. Stata is more flexible than other software in accommodating survey designs and analyzing different.
Datasets used in the stata documentation were selected to demonstrate the use of stata. Below is the link for the using stata as well as sas and sudaan survey setup commands for nhanes iii and other datasets. If you are using an earlier version of one of these packages, the code provided below may not work. Use the svyset command to specify the variables that identify the survey design characteristics and default method for estimating. In this example, you will use stata to generate tables of means and standard errors for average cholesterol levels of persons 20 years and older by sex and raceethnicity. Conclusions understanding the survey design of the data is a critical step. Replicate weights in the current population survey ipums cps. The method outlined in this module uses a stata data file with cps population totals. This is why i use the following svyset command in stata. The chisquare statistics is requested from the stata command svy. The mse method providea larger variance estimation because of the addition of the familiar sqared bias tern in the mean square error. Its goals are to collect and preserve data and documentation, harmonize.
If a module or task is not listed it is because it did not have a related program. Using svyset to account for the complex survey design. Aside from the description, you will find generic commands as well. I am using a survey sample and am trying to analyze a subpopulation. Sas survey procedures and sascallable sudaan and stata programs. How can i produce collapsed data to graphically show the development in the unconditional mean of y over time and groups. Does anyone have experience using the stata svyset command or, more generally, specifying relevant survey design factors in a statistical analysis program with pums files. Analyzing data collected with complex survey design. Stata press, a division of statacorp llc, publishes books, manuals, and journals about stata and general statistics topics for professional researchers of all disciplines. In stata, obtaining correct standard errors for complex survey designs uses the svyset command which identifies the main sampling weight, the replicate weights, and the. Frequency weighting in r, comparing results with stata.
Christopher f baum bc diw using stata bbs 20 12 96. In this example, you will use stata to combine age subgroups and generate population estimates for high blood pressure hbp by sex and raceethnicity for persons 20 years and older. In this task, you will use the chisquare test in stata to determine whether gender and blood pressure cuff size are independent of each other. Using weights in data analysis bowling green state. You use svyset to designate variables that contain information about the survey design, such as the sampling units and. Hopefully, the provider of your data has told you what you need for the svyset command or has even svyset the data for you.
The svyset command tells stata about the design elements in the survey. The current settings are reported when svyset is called without arguments svyset use the clear option to remove the current settings svyset, clear. I am trying to get mean, median, 10th percentile and 90th percentile of a continuous varaible for my subpopulation of interets. Applied survey data analysis in stata 9 idre stats. Sample setups for commonly used survey data sets idre stats. Ipums nhis is a project dedicated to collecting and distributing census data from around the world. If you are new to stata s survey data commands, we recommend that you read the following sections. Validate that in stata, pweight is equivalent to using aweight with robust standard errors. Im preparing to run a probit regression in stata using acs pums data. Data includes decennial censuses from 1790 to 2010 and american community surveys acs from 2000 to the present. The y x1 x2 x3command specifies that y is a continuous dependent variable, while x1, x2, and x3 are independent variables. There are two series of commands you can use analyze nhanes in stata. Below is a listing of all the sample code and datasets used in the continuous nhanes tutorial. Validate that aweight in stata is equivalent to using the.
Applied survey data analysis in stata 11 idre stats. There are different survey setups for the different nhanes iii datasets depending upon whether using replicate weights or balancerepeated replicate weights brr or pseudostrata and pseudopsu variables. Datasets for stata survey data reference manual, release 8. Use the svyset command to specify the variables that identify the survey design characteristics and default method for estimating standard errors. What is done and can be done in stata article pdf available in stata journal 71. It would also be great to produce confidence intervals for these graphs. Data include demographic information, rich employment data, program participation and supplemental data on topics such as fertility, tobacco use, volunteer activities, voter registration, computer and internet use, food security, and more. Using if or in restrictions will often not produce correct variance estimates for. Doing bootstrapjackknife in stata doing repeated replication methods bootstrapjackknife. Once stata knows about the survey via the svyset commands, you can use the svy. Sample setups for commonly used survey data sets this page shows the survey setups for common public use data sets in various statistical packages, including sudaan, stata and sas.
Svy commands svy commands are a series of commands specifically designed to analyze complex survey designs like nhanes. Stata press 4905 lakeway drive college station, tx 77845, usa 979. The following options are available with svyset but are not shown in the dialog box. Odonnell o e van doorslaer a wagstaff and m lindelow 2008. Includes svyset with ess8, weighing data, svy functions, reg, making proper inferences through residual analysis. The solution is run your do file under version control and use the old svyset. The svyset command tells stata everything it needs to know about the data sets sampling weights, clustering, and stratification. Following that example, is an example of calculating the geometric means. To calculate the means and standard errors, you would use stata survey svy commands because they account for the complex survey design of.
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