ProHealth health Vitamin and Natural Supplement Store and Health
Home  |  Log In  |  My Account  |  View Cart  View Your ProHealth Vitamin and Supplement Shopping Cart
800-366-6056  |  Contact Us  |  Help
Facebook Google Plus
Fibromyalgia  Chronic Fatigue Syndrome & M.E.  Lyme Disease  Natural Wellness  Supplement News  Forums  Our Story
Store     Brands   |   A-Z Index   |   Best Sellers   |   New Products   |   Deals & Specials   |   Under $10   |   SmartSavings Club

Trending News

SURVEY: Cognitive Impairment II

Top 3 Nutrients to Detox the Liver and Soothe Digestion

Natural Bladder Control, Go Less and Live More

Vital Molecule Increases Cellular Energy and Improves Cognitive Function

Top Vitamin and Mineral Deficiencies — Are You at Risk?

How Pomegranate May Protect Against Cancer

Omega Fix for Obesity: How the Right Fats Fight Fat

Trimming the spare tire: Canola oil may cut belly fat

The Onion: Cancer Fighter and Food Preserver

Fighting Heartburn and Gerd Naturally – And Safely!

 
Print Page
Email Article

Abstract: Functional Mixed-Effects Model for Periodic Data

  [ 119 votes ]   [ Discuss This Article ]
www.ProHealth.com • October 10, 2005


Biostatistics. 2005 Oct 5; [Epub ahead of print] Qin L, Guo W. Statistical Center for HIV/AIDS Research and Prevention Fred Hutchinson Cancer Research Center, Seattle WA 98109. Periodic data are frequently collected in biomedical experiments. We consider the underlying periodic curves giving rise to these data, and account for the periodicity in their functional model to improve estimation and inference. We propose to incorporate the periodic constraint in the functional mixed-effects model setting. Both the fixed functional effects and random functional effects are modelled in the same periodic functional space, hence the population-average estimates and subject-specific predictions are all periodic. An efficient algorithm is given to estimate the proposed model by an O(N) modified Kalman filtering and smoothing algorithm. The proposed method is evaluated in different scenarios through simulations. Treatments to none-full period data and missing observations along the period are also given. Analysis of a cortisol data set obtained from a study on fibromyalgia is conducted as illustration. PMID: 16207823 [PubMed - as supplied by publisher]




Post a Comment

Featured Products From the ProHealth Store
Ultra EPA  - Fish Oil Mitochondria Ignite™ with NT Factor® Vitamin D3 Extreme™


Article Comments



Be the first to comment on this article!

Post a Comment


 
Natural Pain Relief Supplements

Featured Products

Vitamin D3 Extreme™ Vitamin D3 Extreme™
50,000 IU Vitamin D3 - Prescription Strength
Ultra EPA  - Fish Oil Ultra EPA - Fish Oil
Ultra concentrated source of essential fish oils
FibroSleep™ FibroSleep™
The All-in-One Natural Sleep Aid
Mitochondria Ignite™ with NT Factor® Mitochondria Ignite™ with NT Factor®
Reduce Fatigue up to 45%
Energy NADH™ 12.5mg Energy NADH™ 12.5mg
Improve Energy & Cognitive Function

Natural Remedies

SAD? Coping with Seasonal Affective Disorder SAD? Coping with Seasonal Affective Disorder
Secret Nutrient for Radiant Skin Secret Nutrient for Radiant Skin
Breaking Through the Mental Fog Breaking Through the Mental Fog
Cell-Charging Compound Gives Steady Energy to Fibromyalgia & Chronic Fatigue Patients Cell-Charging Compound Gives Steady Energy to Fibromyalgia & Chronic Fatigue Patients
Repair Damaged Mitochondria and Reduce Fatigue Up to 45% Repair Damaged Mitochondria and Reduce Fatigue Up to 45%

CONTACT US
ProHealth, Inc.
555 Maple Ave
Carpinteria, CA 93013
(800) 366-6056  |  Email

· Become a Wholesaler
· Vendor Inquiries
· Affiliate Program
SHOP WITH CONFIDENCE
Credit Card Processing
SUBSCRIBE TO OUR NEWSLETTERS
Get the latest news about Fibromyalgia, M.E/Chronic Fatigue Syndrome, Lyme Disease and Natural Wellness

CONNECT WITH US ProHealth on Facebook  ProHealth on Twitter  ProHealth on Pinterest  ProHealth on Google Plus

© 2016 ProHealth, Inc. All rights reserved. Pain Tracker App  |  Store  |  Customer Service  |  Guarantee  |  Privacy  |  Contact Us  |  Library  |  RSS  |  Site Map