Stata Tips, Fourth Edition, Volume I: Tips 1-119

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. Angquist 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 ?'s and ?'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. Angquist Stata tip 118: Orthogonalizing powered and product terms using residual centering, C. Sauer Stata tip 119: Expanding datasets for graphical ends, N. J. Cox

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