degrees of freedom

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de·grees of free·dom (d.f.),

in statistics, the number of independent comparisons that can be made between the members of a sample (for example, subjects, test items and scores, trials, conditions); in a contingency table it is one less than the number of row categories multiplied by one less than the number of column categories.

de·grees of free·dom

(dĕ-grēz' frē'dŏm)

1. The number of planes (e.g., one, two, or three) within which a joint can move.

2. The variety of possible movement combinations that can occur within a segment of the human body.

degrees of freedom (df)

the number of unrestricted variables in a frequency distribution, a factor that is of great importance in statistical testing. For example, in a simple CHI-SQUARED TEST the number of degrees of freedom is one less than the number of classes (types) of individuals, one d.f. having been lost due to the assumption that a certain proportion of each class is expected. Thus in testing a 9:3:3:1 ratio there are three degrees of freedom.

de·grees of free·dom

(dĕ-grēz' frē'dŏm)

In statistics, number of independent comparisons that can be made between the members of a sample.

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References in periodicals archive ?

This formulation ensures that the ratio [E.sub.loc] /[E.sub.rot] is truly a good measure of the relative amount of noise in the positional and rotational components of 6DOF data.

Registration of six degrees of freedom data with proper handling of positional and rotational noise

We have therefore allowed us to simplify the behavior of the front of the frame ladder to a 6DOF rigid body motion.

Fatigue Evaluation of Multi-Degree of Freedom, Frequency Domain, Stochastic, Truck Road Load Models

Vive Focus Plus offers two ultrasonic 6DoF controllers featuring an analog trigger that gives users the ability to control objects or interactions with pressure-sensitive input, making experiences truly immersive.

HTC Vive Announces Vive Focus Plus for Premium Standalone VR Experiences

Vive Focus Plus offers two ultrasonic 6DoF controllers featuring an analogue trigger that gives users the ability to control objects or interactions with pressure-sensitive input, making experiences truly immersive.

HTC Vive launches latest enterprise VR headset

The presentation on 6DoF technology in VR/AR will help the user to experience 3D audio/video content in the virtual space by introducing an unlimited number of listening and vantage points.

Zylia and Infineon to present AR/VR solutions at Mobile World Congress 2019

Commparison Between Different Methods of Control of Ball and Plate System with 6DOF Stewart Platform.

Linear Quadratic Gaussian (LQG) Control Design for Position and Trajectory Tracking of the Ball and Plate System

HTC also unveiled the Vive Cosmos, a brand new model that offers six degrees of freedom (6DOF) without the need for external sensors.

CES 2019: Gaming tech roundup

In addition, the company's patient-centric solutions include advanced patient immobilisation and positioning hardware and consumables, fiducial markers, couchtops and overlays, software, patient care products and advanced 6DOF robotic patient positioning.

CIVCO Radiotherapy passes US FDA 510k clearance and CE mark for Solstice SRS Immobilization System

FARO(R) (NASDAQ: FARO), a company involved in 3D measurement and imaging solutions for factory metrology, product design, construction BIM and public safety forensics, has launched the next generation of FARO Laser Trackers, the 6DoF Vantage product family with 6Probe.

FARO launches 6Probe

According to HTC, Vive Focus is the first 6DOF stand-alone VR headset to be commercially available.

Taiwan-based HTC: Vive Focus coming to international markets later this year

Different airplane models can be found on the local simulator database instead of tuning the aerodynamic coefficients of a six-degree-of-freedom (6DOF) model by hand.

Toward Dynamic Monitoring and Suppressing Uncertainty in Wildfire by Multiple Unmanned Air Vehicle System

The Teach and Playback training device prototype offers a robot arm that enjoys 6 degrees of freedom (6DoF).