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#Statcalc online series#

Population survey or descriptive study (For simple random sampling, leave design effect and clusters equal to 1.)

These functions have not been implemented as of Epi Info™ version 7.2.0.1.

The only function the Hide Gadget Borders button provides to a StatCalc calculator is to remove its border. As a consequence, the gadgets can no longer be repositioned, reconfigured, collapsed, expanded, or closed. In most cases, the Hide Gadget Borders button not only removes the outer rectangle, but the title bar and associated buttons as well.

The behavior of this function in StatCalc calculators differs from that of other gadgets.

close and be removed from the Canvas in response to the user pressing the Close button (red box with a white × inside).

collapse and expand the calculator window in response to the user pressing the Arrow toggle button on the gadget's title bar, and.

hide borders in response to the user pressing the Hide Gadget Borders button on the VD status bar ,.

stack vertically with other gadgets in response to the user pressing the Vertical Arrange button on the VD status bar,.

Calculators placed on the dashboard Canvas shall have all the relevant properties of other gadgets including the ability to:.

The VD shall enable the user to place the selected calculators on the Canvas.

The VD shall enable the user to select StatCalc calculators from the Options menu.

When the user selects a calculator from the StatCalc menu, each calculator shall open a window containing the components specified in StatCalc Calculator Properties, below.

The StatCalc menu shall enable the user to start the eight (8) StatCalc calculators from an array of buttons bearing the names of the calculators.

Epi Info™ 7 shall enable the user to open the StatCalc menu from the Epi Info ™ main menu.

However, calculators placed on the dashboard cannot be saved with the canvas, nor can their output be exported or printed with the other analysis gadgets.

As StatCalc calculators do not access data records and process only data entered manually by the user, calculators can be added to a canvas without having to first attach a data source. In VD, the calculators can be accessed from the Options menu, under the "Add StatCalc calculator" submenu, and added to the dashboard Canvas in the same manner as other gadgets. The individual calculators are also part of Visual Dashboard (VD).

StatCalc appears on the Epi Info™ 7 main menu, middle row, right column, and is captioned "Statistical calculators for sample size, power, and more." Clicking on StatCalc in the main menu opens the StatCalc menu, which is similar to the main menu in appearance and contains buttons for the eight (8) StatCalc calculators listed in StatCalc Calculator Properties, below. The StatCalc tools can be accessed as an independent module from the main menu or as part of the Visual Dashboard.

distribution-based event probabilities, 2-tailed p-values and confidence intervals for deviations from binomial (proportions) and Poisson (rare events) distributions given the number of observed and expected events. analysis of 2×2 tables to produce odds ratios and risk ratios (relative risks) with confidence limits, Fisher exact tests, and 1- and 2-tailed p-values, with Mantel-Haenszel summary odds ratios, chi square tests and associated p-values for stratified data 3).

#Statcalc online series#

sample size and power calculations for unmatched case-control studies, population surveys, cohort or cross-sectional studies, chi-square for trend by the Mantel extension of the Mantel-Haenszel summary odds ratio, and chi square (tests for the presence of a trend in dose-response or other case-control studies where a series of increasing or decreasing exposures is being studied) 2). StatCalc tools can be divided into three broad categories: 1). The StatCalc component of Epi Info™ 7 enables the user to evaluate the performance of different study designs and statistical tests by supplying high-level information on the properties of hypothetical data sets and the criteria used for evaluation.