Introducing Stata tips

Stata tip 1: The eform() option of regress, R. Newson

Stata tip 2: Building with floors and ceilings, N. J. Cox

Stata tip 3: How to be assertive, W. Gould

Stata tip 4: Using display as an online calculator, P. Ryan

Stata tip 5: Ensuring programs preserve dataset order, R. Newson

Stata tip 6: Inserting awkward characters in the plot, N. J. Cox

Stata tip 7: Copying and pasting under Windows, S. Driver and P. Royston

Stata tip 8: Splitting time-span records with categorical time-varying covariates, B. Jann

Stata tip 9: Following special sequences, N. J. Cox

Stata tip 10: Fine control of axis title positions, P. Ryan and N. Winter

Stata tip 11: The nolog option with maximum-likelihood modeling commands, P. Royston

Stata tip 12: Tuning the plot region aspect ratio, N. J. Cox

Stata tip 13: generate and replace use the current sort order, R. Newson

Stata tip 14: Using value labels in expressions, K. Higbee

Stata tip 15: Function graphs on the fly, N. J. Cox

Stata tip 16: Using input to generate variables, U. Kohler

Stata tip 17: Filling in the gaps, N. J. Cox

Stata tip 18: Making keys functional, S. Driver

Stata tip 19: A way to leaner, faster graphs, P. Royston

Stata tip 20: Generating histogram bin variables, D. A. Harrison

Stata tip 21: The arrows of outrageous fortune, N. J. Cox

Stata tip 22: Variable name abbreviation, P. Ryan

Stata tip 23: Regaining control over axis ranges, N. Winter

Stata tip 24: Axis labels on two or more levels, N. J. Cox

Stata tip 25: Sequence index plots, U. Kohler and C. Brzinsky-Fay

Stata tip 26: Maximizing compatibility between Macintosh and Windows, M. S. Hanson

Stata tip 27: Classifying data points on scatter plots, N. J. Cox

Stata tip 28: Precise control of dataset sort order, P. Schumm

Stata tip 29: For all times and all places, C. H. Franklin

Stata tip 30: May the source be with you, N. J. Cox

Stata tip 31: Scalar or variable? The problem of ambiguous names, G. I. Kolev

Stata tip 32: Do not stop, S. P. Jenkins

Stata tip 33: Sweet sixteen: Hexadecimal formats and precision problems, N. J. Cox

Stata tip 34: Tabulation by listing, D. A. Harrison

Stata tip 35: Detecting whether data have changed, W. Gould

Stata tip 36: Which observations?, N. J. Cox

Stata tip 37: And the last shall be first, C. F. Baum

Stata tip 38: Testing for groupwise heteroskedasticity, C. F. Baum

Stata tip 39: In a list or out? In a range or out?, N. J. Cox

Stata tip 40: Taking care of business, C. F. Baum

Stata tip 41: Monitoring loop iterations, D. A. Harrison

Stata tip 42: The overlay problem: Offset for clarity, J. Cui

Stata tip 43: Remainders, selections, sequences, extractions: Uses of the modulus, N. J. Cox

Stata tip 44: Get a handle on your sample, B. Jann

Stata tip 45: Getting those data into shape, C. F. Baum and N. J. Cox

Stata tip 46: Step we gaily, on we go, R. Williams

Stata tip 47: Quantile–quantile plots without programming, N. J. Cox

Stata tip 48: Discrete uses for uniform(), M. L. Buis

Stata tip 49: Range frame plots, S. Merryman

Stata tip 50: Efficient use of summarize, N. J. Cox

Stata tip 51: Events in intervals, N. J. Cox

Stata tip 52: Generating composite categorical variables, N. J. Cox

Stata tip 53: Where did my p-values go?, M. L. Buis

Stata tip 54: Post your results, P. Van Kerm

Stata tip 55: Better axis labeling for time points and time intervals, N. J. Cox

Stata tip 56: Writing parameterized text files, R. Gini

Stata tip 57: How to reinstall Stata, W. Gould

Stata tip 58: nl is not just for nonlinear models, B. P. Poi

Stata tip 59: Plotting on any transformed scale, N. J. Cox

Stata tip 60: Making fast and easy changes to files with filefilter, A. R. Riley

Stata tip 61: Decimal commas in results output and data input, N. J. Cox

Stata tip 62: Plotting on reversed scales, N. J. Cox and N. L. M. Barlow

Stata tip 63: Modeling proportions, C. F. Baum

Stata tip 64: Cleaning up user-entered string variables, J. Herrin and E. Poen

Stata tip 65: Beware the backstabbing backslash, N. J. Cox

Stata tip 66: ds—A hidden gem, M. Weiss

Stata tip 67: J() now has greater replicating powers, N. J. Cox

Stata tip 68: Week assumptions, N. J. Cox

Stata tip 69: Producing log files based on successful interactive commands, A. R. Riley

Stata tip 70: Beware the evaluating equal sign, N. J. Cox

Stata tip 71: The problem of split identity, or how to group dyads, N. J. Cox

Stata tip 72: Using the Graph Recorder to create a pseudograph scheme, K. Crow

Stata tip 73: append with care!, C. F. Baum

Stata tip 74: firstonly, a new option for tab2, R. G. Gutierrez and P. A. Lachenbruch

Stata tip 75: Setting up Stata for a presentation, K. Crow

Stata tip 76: Separating seasonal time series, N. J. Cox

Stata tip 77: (Re)using macros in multiple do-files, J. Herrin

Stata tip 78: Going gray gracefully: Highlighting subsets and downplaying substrates, N. J. Cox

Stata tip 79: Optional arguments to options, N. J. Cox

Stata tip 80: Constructing a group variable with specified group sizes, M. Weiss

Stata tip 81: A table of graphs, M. L. Buis and M. Weiss

Stata tip 82: Grounds for grids on graphs, N. J. Cox

Stata tip 83: Merging multilingual datasets, D. L. Golbe

Stata tip 84: Summing missings, N. J. Cox

Stata tip 85: Looping over nonintegers, N. J. Cox

Stata tip 86: The missing() function, B. Rising

Stata tip 87: Interpretation of interactions in nonlinear models, M. L. Buis

Stata tip 88: Efficiently evaluating elastics with the margins command, C. F. Baum

Stata tip 89: Estimating means and percentiles following multiple imputation, P. A. Lachenbruch

Stata tip 90: Displaying partial results, M. Weiss

Stata tip 91: Putting unabbreviated varlists into local macros, N. J. Cox

Stata tip 92: Manual implementation of permutations and bootstraps, L. Ãngquist

Stata tip 93: Handling multiple y axes on twoway graphs, V. Wiggins

Stata tip 94: Manipulation of prediction parameters for parametric survival regression models, T. Boswell and R. G. Gutierrez

Stata tip 95: Estimation of error covariances in a linear model, N. J. Horton

Stata tip 96: Cube roots, N. J. Cox

Stata tip 97: Getting at ρ's and σ's, M. L. Buis

Stata tip 98: Counting substrings within strings, N. J. Cox

Stata tip 99: Taking extra care with encode, C. Schechter

Stata tip 100: Mata and the case of the missing macros, W. Gould and N. J. Cox

Stata tip 101: Previous but different, N. J. Cox

Stata tip 102: Highlighting specific bars, N. J. Cox

Stata tip 103: Expressing confidence with gradations, U. Kohler and S. Eckman

Stata tip 104: Added text and title options, N. J. Cox

Stata tip 105: Daily dates with missing days, S. J. Samuels and N. J. Cox

Stata tip 106: With or without reference, M. L. Buis

Stata tip 107: The baseline is now reported, M. L. Buis

Stata tip 108: On adding and constraining, M. L. Buis

Stata tip 109: How to combine variables with missing values, P. A. Lachenbruch

Stata tip 110: How to get the optimal k-means cluster solution, A. Makles

Stata tip 111: More on working with weeks, N. J. Cox

Stata tip 112: Where did my p-values go? (Part 2), M. L. Buis

Stata tip 113: Changing a variable's format: What it does and does not mean, N. J. Cox

Stata tip 114: Expand paired dates to pairs of dates, N. J. Cox

Stata tip 115: How to properly estimate the multinomial probit model with heteroskedastic errors, M. Herrmann

Stata tip 116: Where did my p-values go? (Part 3), M. L. Buis

Stata tip 117: graph combine—Combining graphs, L. Ãngquist

Stata tip 118: Orthogonalizing powered and product terms using residual centering, C. Sauer

Stata tip 119: Expanding datasets for graphical ends, N. J. Cox

Introducing Stata tips

Stata tip 120: Certifying subroutines, M. L. Buis

Stata tip 121: Box plots side by side, N. J. Cox

Stata tip 122: Variable bar widths in two-way graphs, B. Jann

Stata tip 123: Spell boundaries, N. J. Cox

Stata tip 124: Passing temporary variables to subprograms, M. L. Buis

Stata tip 125: Binned residual plots for assessing the fit of regression models for binary outcomes, J. Kasza

Stata tip 126: Handling irregularly spaced high-frequency transactions data, C. F. Baum and S. Bibo

Stata tip 127: Use capture noisily groups, R. B. Newson

Stata tip 128: Marginal effects in log-transformed models: A trade application, L. J. Uberti

Stata tip 129: Efficiently processing textual data with Stata’s new Unicode features, A. Koplenig

Stata tip 130: 106610 and all that: Date variables that need to be fixed., N. J. Cox

Stata tip 131: Custom legends for graphs that use translucency, T. P. Morris

Stata tip 132: Tiny tricks and tips on ticks, N. J. Cox and V. Wiggins

Stata tip 133: Box plots that show median and quartiles only, N. J. Cox

Stata tip 134: Multiplicative and marginal interaction effects in nonlinear models, W. H. Dow, E. C. Norton, and J. T. Donahoe

Stata tip 135: Leaps and bounds, M. L. Buis

Stata tip 136: Between-group comparisons in a scatterplot with weighted markers, A. Musau

Stata tip 137: Interpreting constraints on slopes of rank-deficient design matrices, D. Christodoulou

Stata tip 138: Local macros have local scope, N. J. Cox

Stata tip 139: The by() option of graph can work better than graph combine, N. J. Cox

Stata tip 140: Shorter or fewer category labels with graph bar, N. J. Cox

Stata tip 141: Adding marginal spike histograms to quantile and cumulative distribution plots, N. J. Cox

Stata tip 142: joinby is the real merge m:m, D. Mazrekaj and J. Wursten

Stata tip 143: Creating donut charts in Stata, A. Musau

Stata tip 144: Adding variable text to graphs that use a by() option, N. J. Cox

Stata tip 145: Numbering weeks within months, N. J. Cox

Stata tip 146: Using margins after a Poisson regression model to estimate the number of events prevented by an intervention, M. Falcaro, R. B. Newson, and P. Sasieni

Erratum: Stata tip 145: Numbering weeks within months, N. J. Cox

Stata tip 147: Porting downloaded packages between machines, R. B. Newson

Stata tip 148: Searching for words within strings, N. J. Cox

Stata tip 149: Weighted estimation of fixed-effects and first-differences models, J. Gardner

Stata tip 150: When is it appropriate to xtset a panel dataset with panelvar only? C. Lazzaro

Stata tip 151: Puzzling out some logical operators, N. J. Cox

Stata tip 152: if and if: When to use the if qualifier and when to use the if command, N. J. Cox and C. B. Schechter