Practical calculation of mean, pooled variance, variance, and standard deviation, in meta-analysis studies

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Computing Standard-Deviation-to-Mean and Variance-to-Mean Ratios under Interval Uncertainty is NP-Hard

Once we have a collection of values corresponding a class of objects, a usual way to decide whether a new object with the value of the corresponding property belongs to this class is to check whether this value belongs to interval from mean E minus k sigma σ to mean plus k sigma, where the parameter k is determined by the degree of confidence with which we want to make the decision. For each va...

متن کامل

Standard Deviation of Mean and Variance of Rows and Columns of Images for CBIR

This paper describes a novel and effective approach to content-based image retrieval (CBIR) that represents each image in the database by a vector of feature values called “Standard deviation of mean vectors of color distribution of rows and columns of images for CBIR”. In many areas of commerce, government, academia, and hospitals, large collections of digital images are being created. This pa...

متن کامل

Application of Clayton Copula in Portfolio Optimization and its Comparison with Markowitz Mean-Variance Analysis

With the aim of portfolio optimization and management, this article utilizes the Clayton-copula along with copula theory measures. Portfolio-Optimization is one of the activities in investment funds. Thus, it is essential to select an appropriate optimization method. In modern financial analyses, there is growing evidence indicating the distribution of proceeds of financial properties is not cu...

متن کامل

Mean - Variance

We provide a new characterization of mean-variance hedging strategies in a general semimartingale market. The key point is the introduction of a new probability measure P ⋆ which turns the dynamic asset allocation problem into a myopic one. The minimal martingale measure relative to P ⋆ coincides with the variance-optimal martin-gale measure relative to the original probability measure P .

متن کامل

Mixture of Normal Mean-Variance of Lindley Distributions

‎Abstract: In this paper, a new mixture modelling using the normal mean-variance mixture of Lindley (NMVL) distribution has been considered. The proposed model is heavy-tailed and multimodal and can be used in dealing with asymmetric data in various theoretic and applied problems. We present a feasible computationally analytical EM algorithm for computing the maximum likelihood estimates. T...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Nursing Practice Today

سال: 2020

ISSN: 2383-1162,2383-1154

DOI: 10.18502/npt.v7i1.2294