Calculate Standard Error Stata
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Standard Error Stata Output
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Calculate Mean Stata
resellers Careers Our sites Statalist The Stata Blog Stata Press Stata Journal Advanced search Site index Purchase Products Training Support Company >> Home >> Resources & support >> FAQs >> summarize and aweights and pweights Why doesn’t summarize accept pweights? What does summarize calculate when you use aweights? Title Probability weights, analytic weights, and summary statistics Author William Sribney, StataCorp Question My data come with probability weights (the inverse of the probability of an observation being selected into the sample). I am trying to compute various summary statistics, including the mean, standard deviation, and various percentiles of the data. Is there any way to compute the mean, standard deviation, and percentiles of a variable with probability weights? Short answer It is important to distinguish among an estimate of the population mean (mu), an estimate of the population standard deviation (sigma), a
This module shows resources you can use to help you learn and use Stata. Stata online help When you know the name of the command calculate median stata you want to use (e.g., summarize), you can use the Stata help calculate covariance stata to get a quick summary of the command and its syntax. You can do this in two ways:1. type
Standard Deviation Stata
help summarize in the command window, or2. click Help, Stata Command, then type summarize. Here is what help summarize looks like. help summarize help summarize dialog: summarize --------------------------------------------------------------------- Title [R] http://www.stata.com/support/faqs/statistics/weights-and-summary-statistics/ summarize -- Summary statistics Syntax summarize [varlist] [if] [in] [weight] [, options] options description --------------------------------------------------------------- Main detail display additional statistics meanonly suppress the display; only calculate the mean; programmer's option format use variable's display format separator(#) draw separator line after every # variables; default is separator(5) --------------------------------------------------------------- varlist may contain time-series operators; see tsvarlist. by may be used with summarize; see by. http://www.ats.ucla.edu/stat/stata/modules/help.htm aweights, fweights, and iweights are allowed. However, iweights may not be used with the detail option; see weight. Description summarize calculates and displays a variety of univariate summary statistics. If no varlist is specified, summary statistics are calculated for all the variables in the dataset. Also see ci for calculating the standard error and confidence intervals of the mean. Options +------+ ----+ Main +--------------------------------------------------- detail produces additional statistics including skewness, kurtosis, the four smallest and four largest values, and various percentiles. meanonly, which is allowed only when detail is not specified, suppresses the display of results and calculation of the variance. Ado-file writers will find this useful for fast calls. format requests that the summary statistics be displayed using the display formats associated with the variables, rather than the default g display format; see format. separator(#) specifies how often to insert separation lines into the output. The default is separator(5), meaning that a line is drawn after every 5 variables. separator(10) would draw a line after every 10 variables. separator(0) suppresses the separation line. Examples summarize summarize mpg weight summarize mpg weight if foreig
the five number summary on one line? Stata provides the summarize command which allows you to see the mean and the standard http://www.ats.ucla.edu/stat/stata/faq/univar.htm deviation, but it does not provide the five number summary (min, q25, median, q75, max). You can use the detail option, but then you get a page of output for every variable. If you want to get the mean, standard deviation, and five number summary on one line, then you want to get the univar command. The univar command was written by standard error John R. Gleason and appears in the Stata Technical Bulletin #51. You can download univar from within Stata by typing findit univar (see How can I used the findit command to search for programs and get additional help? for more information about using findit).Let's illustrate use of the univar command using the high school and beyond data file we use in our Stata standard error stata Classes. use http://www.ats.ucla.edu/stat/stata/notes/hsb1, clear (highschool and beyond (200 cases)) Here you see the output you get from summarize. summarize read write math science socst Variable | Obs Mean Std. Dev. Min Max ---------+----------------------------------------------------- read | 200 52.23 10.25294 28 76 write | 200 52.775 9.478586 31 67 math | 200 52.645 9.368448 33 75 science | 195 51.66154 9.866026 26 74 socst | 200 52.405 10.73579 26 71 Here is the output you can get from univar. univar read write math science socst -------------- Quantiles -------------- Variable n Mean S.D. Min .25 Mdn .75 Max ------------------------------------------------------------------------------- read 200 52.23 10.25 28.00 44.00 50.00 60.00 76.00 write 200 52.78 9.48 31.00 45.50 54.00 60.00 67.00 math 200 52.64 9.37 33.00 45.00 52.00 59.00 75.00 science 195 51.66 9.87 26.00 44.00 53.00 58.00 74.00 socst 200 52.40 10.74 26.00 46.00 52.00 61.00 71.00 ------------------------------------------------------------------------------- If you include the vlabel option, it also includes the variable labels in the table. univar read write math science socst, vlabel -------------- Quantiles -------------- Variable n Mean S.D. Min .25 Mdn .75 Max ------------------------------------------------------------------------------- read reading score read 200 52.23 10.25
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