Generalized confidence interval plots using commands or dialogs

Confidence intervals may be presented as publication-ready tables or as presentation-ready plots. -eclplot- produces plots of estimates and confidence intervals. It inputs a dataset (or resultsset) with one observation per parameter and variables containing estimates, lower and upper confidence limits, and a fourth variable, against which the confidence intervals are plotted. This resultsset can be used for producing both plots and tables, and may be generated using a spreadsheet or using -statsby-, -postfile- or the unofficial Stata -parmest- package. Currently, -eclplot- offers 7 plot types for the estimates and 8 plot types for the confidence intervals, each corresponding to a -graph twoway- subcommand. These plot types can be combined to produce 56 combined plot types, some of which are more useful than others, and all of which can be either horizontal or vertical. -eclplot- has a -plot()- option, allowing the user to superimpose other plots to add features such as stars for P-values. -eclplot- can be used either by typing a command, which may have multiple lines and sub-suboptions, or by using a dialog, which generates the command for users not fluent in the Stata graphics language.