//检测所有能通过ssc安装的以d开头的命令列表
ssc describe d
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// http://fmwww.bc.edu/repec/bocode/d/
// (no title)
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// PACKAGES you could -net describe-:
// d3network module to create network visualizations using D3.js to view in browser
// dadjoke module to produce terrible dad jokes
// dag module to provide utilities for directed acyclic graphs
// dagfit module to fit a Generalized Beta (Type 2) distribution to grouped data via ML
// dagumfit module to fit a Dagum distribution by maximum likelihood
// dash module to score Disabilities of the Arm, Shoulder and Hand
// dashgph module to construct dashed lines in scatterplots
// dashln module to add dashed lines to graphs
// datacheck module to perform data checks and produce informative output
// dataex module to generate a properly formatted data example for Statalist
// dataframe module to store/restore multiple Stata datasets to/from memory
// datanet module to facilitate dataset organization for network analysis purposes
// dataout module to export a dataset or tab-delimited file into various formats
// dataplink module to import data from plink
// datelist module to to create ascending numeric lists of dates
// datesum module to display summary statistics for date variables
// datmat module to multiply variables via matrix multiplication
// dbmscopybatch module to produce a batch file for DBMS/Copy
// dbnomics module for DB.nomics, the world's economic database
// dcreate module to create efficient designs for discrete choice experiments
// ddf2dct module to facilitate infiling US Government data distributed with a DDF
// ddml module for Double/Debiased Machine Learning
// deci module to perform Variable Base conversion
// decomp module to compute decompositions of earnings gaps
// decompose module to compute decompositions of wage differentials
// delaunay module for Delaunay triangulation
// delta module to compute the Delta index of scale discrimination
// demotivate module to remind users of the harsh reality of econometric & statistical practice
// denton module to interpolate a flow or stock series from low-frequency totals via proportional Denton method
// dep4asm module to create [in]dependent variable for alternative-specific models
// dependencies module to manage required user-written commands (ado version freeze)
// depthplot module to plot one or more variables with depth as vertical axis
// des2 module to describe current dataset with clickable output
// descgen module to add Stata dataset attribute variables to a xdir resultsset
// desclong module to create and save a dataset holding variable information while including long variable labels
// descogini module to perform Gini decomposition by income source
// descsave module to export data set and machine-readable codebook
// designplot module to produce a graphical summary of response given one or more factors
// desma module to design and simulate (adaptive) multi-arm clinical trials
// desmat module to generate interactions and contrasts
// detect module to compute the DETECT, Iss and R indexes to test a partition of items
// devcon module to apply the deviation contrast transform to estimation results
// devnplot module for deviation plots
// devr2 module to compute Cameron and Windmeijer's deviance based R-squared measure
// dfao module to perform Dickey-Fuller unit root test in the presence of additive outliers
// dfgls module to compute Dickey-Fuller/GLS unit root test
// dfl module to estimate DiNardo, Fortin and Lemieux Counterfactual Kernel Density
// dfsummary module to compute the (Augmented) Dickey-Fuller unit-root test and reports a summary table for different lags
// dftol module to compute distribution-free tolerance intervals
// diagma module for the split component synthesis method of diagnostic meta-analysis
// diagram module to analyze executed ado programs and produce a dynamic profile diagram
// diagreg module to compute Model Selection Diagnostic Criteria
// diagreg2 module to compute 2SLS-IV ModeL Selection Diagnostic Criteria
// diagsampsi module for computing sample size for a single diagnostic test with a binary outcome
// diagt module to report summary statistics for diagnostic tests compared to true disease status
// diagtest module to report summary statistics for diagnostic test
// dichoct module to dichotomizes a variable at a specified centile and generates a new variable containing the dichotomized values
// dict module to loop over multiple arguments
// did2s module to estimate a TWFE model using the two-stage difference-in-differences approach
// did_imputation module to perform treatment effect estimation and pre-trend testing in event studies
// did_multiplegt module to estimate sharp Difference-in-Difference designs with multiple groups and periods
// didq module to compute treatment effects under alternative Parallel-q assumptions
// difd module to evaluate test items for differential item functioning (DIF)
// difdetect module to detect and adjust for differential item functioning (DIF)
// diff module to perform Differences in Differences estimation
// diffpi module to calculate difference expressed as a percentage
// difwithpar module for detection of and adjustment for differential item functioning (DIF)
// digdis module to analyze the distribution of digits
// digits module to examine digit preferences in numeric variables
// diplot module to draw double interval plot
// diptest module to compute dip statistic to test for unimodality
// directma module to conducts multiple pair-wise meta-analysis (head-to-head comparisons) and export the pooled results to Excel
// dirifit module to fit a Dirichlet distribution
// dirlist module to retrieve directory information
// dirtools modules to manage files in the working directory
// discrates module to provide estimation and statistical test for gross and net discrimination rates
// discrepancy module to implement a pseudo-ANOVA method for partitions of pairwise distance matrices
// disjoint module to generate end variable demarcating disjoint spells
// dissim module to calculate dissimilarity index
// distan module to generate similarity measures
// distcomp module to compare distributions
// distinct module to display distinct values of variables
// distmatch module to perform distance matching based on latitudes and longitudes
// distplot module to generate distribution function plot
// distrate module to compute direct standardized rates with improved confidence interval
// divcat module to calculate five measures of diversity for multiple categories
// divratio module for estimating diversion ratios and willingness-to-pay from a semiparametric choice model
// dkdensity module for deconvolution kernel density estimation and construction of its uniform confidence band
// dlagif Module to Estimate Irving Fisher Arithmetic Distributed Lag Model
// dldq module to compute treatment effects under alternative Parallel-q assumptions
// dlist module to list with variable labels
// dlogit2 modules to compute marginal effects for logit, probit, and mlogit
// dmariano module to calculate Diebold-Mariano comparison of forecast accuracy
// dmerge module to merge datasets using a modification of Stata's merge
// dmexogxt module to test consistency of OLS vs XT-IV estimates
// dmout module to create difference-in-means tables
// do2screen module to display do-files in result window
// docd module to change the working directory before executing a do-file
// docxtab module to list variables to a Word table with head or foot rows from characteristics
// doiplot module for visualization of asymmetry and heterogeneity in meta-analysis
// dolog modules to execute commands from a file with logging
// dologx modules to execute commands from a file with logging
// domdiag module to construct dominance diagrams
// domin module to conduct dominance analysis
// domme module to conduct dominance analysis with multiple equation models
// doparser module to look for dta-files used in do-files
// doptimal module to find the D-optimal Design for Dose Ranging studies
// doseresponse module to estimate dose-response function through adjustment for the generalized propensity score
// doseresponse2 module to estimate generalized propensity score
// dotemplate module to creates templates for do-files
// dotex module to generate TeX log from do-file
// doub2flt module to change storage type of real variable
// doubleb module to compute Contingent Valuation using Double-Bounded Dichotomous Choice
// doubletofloat module to recast variables from double to float storage type
// doubmass module to draw double mass plot
// dpplot module for density probability plots
// dpredict module to produce dynamic forecasts for ARIMA(p,s,q) models
// dqd module to compute treatment effects under alternative Parallel-q assumptions
// drarea module to overlap two range area plots
// drcate module to estimate and plot conditional average treatment effect functions with uniform confidence bands using a doubly robust method
// drdecomp module to estimate Shapley value of growth and distribution components of changes in poverty indicators
// drdid module for the estimation of Doubly Robust Difference-in-Difference models
// drm module to fit Sobel's Diagonal Reference Model (DRM)
// drmeta module for dose-response meta-analysis
// drmmws module to perform doubly-robust marginal mean weighting through stratification
// ds2 v6 module to describe variables in memory
// ds3 module to describe variables in memory
// ds5 module to describe variables in memory
// dsconcat module to concatenate a list of Stata data files into memory
// dsearch module to find variables with given variable label
// dseg module to compute decomposable multigroup segregation indexes
// dsginideco module to compute decomposition of inequality change into pro-poor growth and mobility components
// dstat module to compute summary statistics and distribution functions including standard errors and optional covariate balancing
// dsweight module to generate direct standardization weights
// dta2ddi module to convert Stata data to DDI standards
// dta2html module to generate HTML code to display a Stata dataset on the web
// dta2kml module to output a KML file from selected datapoints in a Stata dataset
// dta2md module to convert Stata system file to metadata
// dta2sav module to export in SPSS format
// dtalink module to implement probabilistic record linkage
// dtanotes module to add metadata as dataset notes
// dtapaper module to create an HTML datapaper
// dtastamp module to store current date and time in dataset characteristics
// dthaz module to compute discrete-time hazard and survival probability estimates
// dtobit2 module to estimate a tobit model with marginal effects at observed censoring rate
// dubois module to provide Du Bois graphic scheme
// dudahart module to calculate and graph Duda-Hart cluster stopping indices from distance matrix
// dummies function to create families of dummy variables
// dummies2 module to create indicator variables from categorical variable and vice versa
// dummieslab module to convert categorical variable to dummy variables using label names
// duncan module to calculate dissimilarity index
// dups module to identify and optionally remove duplicate observations
// durbinh module to calculate Durbin's h test for serial correlation
// dyadid module to perform Dyad ID matching
// dyads module to transform observations into dyads
// dynardl module to dynamically simulate autoregressive distributed lag (ARDL) models
// dynpandoc module creating dynamic documents using dynamic tags and pandoc
// dynsimpie module to examine dynamic compositional dependent variables
// dynsimple module to examine dynamic compositional dependent variables
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// (type ssc describe pkgname for more information on pkgname)
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