The xt series of commands provides tools for analyzing panel data (also known as longitudinal data or, in some disciplines, as cross-sectional time series when there is an explicit time component).

The Zio XT Patch is an ECG monitor that continuously records the electrical activity of the heart. It is intended to be worn continuously for a time period specified by a physician for up to 14 days.

This manual is designed to assist you with the operation and maintenance of the Power-PRO™ XT Ambulance Cot. Read it thoroughly before using the equipment or beginning any maintenance on it.

The Tempus xT next generation sequencing assay is designed to detect actionable oncologic targets by sequencing tumor samples with matched normal saliva or blood samples, when available.

The xt series of commands provides tools for analyzing panel data (also known as longitudinal data or in some disciplines as cross-sectional time series when there is an explicit time component).

This manual documents the xt commands and is referred to as [XT] in cross-references. Following this entry, [XT] xt provides an overview of the xt commands. The other parts of this manual are arranged …

Also see Syntax Description xtsum, a generalization of summarize (see [R] summarize), reports means and standard deviations for panel data; it differs from summarize in that it decomposes the standard …