MedCalc Statistical Software MedCalc is a statistical software package for the biomedical sciences. It has an integrated spreadsheet which can be configured to contain up to 100000 rows. The program correctly handles missing data
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MedCalc Statistical Software Description

A complete statistical program Data management - Integrated spreadsheet with 16384 columns and up to 100000 rows. - Correct handling of missing data. - Outliers can easily be excluded. - Built-in WYSIWYG text editor. - Imports Excel, Excel 2007, SPSS, DBase and Lotus files, and files in SYLK, DIF or plain text format. - Easy selection of subgroups for statistical analysis. Documentation - Comprehensive help file. - Manual in PDF format (go to download area). - Complete HTML manual on MedCalc web site. - Context help in dialog boxes. ROC curve analysis - Area under the curve (AUC) with standard error, 95% confidence interval, P-value. Offers choice between methodology of DeLong et al. (1988) and Hanley & McNeil (1982, 1983). - List of sensitivity, specificity, likelihood ratios, and positive and negative predictive values for all possible threshold values. - ROC curve graph with 95% Confidence Bounds. - Threshold values can be selected in an interactive dot diagram with automatic calculation of corresponding sensitivity and specificity. - Plot of sensitivity and specificity versus criterion values. - Interval likelihood ratios. - Comparison of up to 6 ROC curves: difference between the areas under the ROC curves, with standard error, 95% confidence interval and P-value. - Sample size calculation for area under ROC curve and comparison of ROC curves. - Go to the ROC curve analysis section of the MedCalc manual for more information on ROC curve analysis in MedCalc. Graphs - Lots of graphs, see Graph gallery. - Data point identification in graphs. - Draw text boxes, lines, arrows and connectors. - Name, save and recall graphs and statistics. - Statistical info in graph windows. - Save graphs as BMP, PNG, GIF, PCX, JPG or TIF files, or as PowerPoint slides (*.pptx). System requirements: - PC with Windows XP, Windows Server 2003, Windows Vista, Windows 7 or Windows 8 (32-bit and 64-bit versions). - 512 Mb of memory. - 20 Mb free space on the hard disk.

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