Mercredi 30 Novembre 2022

Vous êtes membre ?

Plus qu'un portail, une communauté !
A06, Portail des Stations du 06

Forums

Bienvenue sur votre forum stations des Alpes-Maritimes

Webcams Stations

Toutes les webcams et webcams panoramiques en direct des stations des Alpes du Sud !

Travaux 2015/2016

AVALANCHE 06 TV

Bulletins d'enneigement

Suivez A06 sur...

Prévisions météo

Aujourd'hui

/ °C
Demain

/ °C
Vous êtes ici / Home / Communauté / Forum AVALANCHE 06
Vous n'êtes pas connecté
| Recherche avancée

What is half the contrast?

Forum AVALANCHE 06 - Index du Forum / Sujets généraux / What is half the contrast?

Page 1 sur 1 | 1
Auteurs Messages
nobileprize
Posté à 11h16 le 22/09/20 | Permalien
Inscrit le: 07/09/2020
Messages: 21
Localisation:

What is half the contrast?
Quasi-variance is a measure of data that can be used to estimate potential downside risks for an investment portfolio. Quasi-variance is calculated by measuring the dispersion of all observations that fall below the mean or target value of a set of data. Half of the variance is the mean of the squared deviations of the values that are below the mean.
free forex signals

The main concerns
The quasi-variance equation can be used to measure downside risk for a portfolio.
Semivariance considers only observations that are below the mean of the data set.
Spreadsheet software can be useful in calculating the semi-variance for your business portfolio.
https://www.freeforex-signals.com/

Understanding quasi-contrast
The semi-contrast formula is
\ start {align} & \ text {Semivariance} = \ frac1n \ times \ sum ^ n_ {r_t<\ text {Average}} (\ text {Average} -r_t) ^ 2 \\ & \ textbf {where:} \ \ & n = \ text {Total number of below average notes} \\ &r_t = \ text {Observed value} \\ & \ text {Average} = \ text {Average or target value of data set} \ end {alignment}

Half the variance =
N
1
X
s
R
<Average
&#8721;
N
(Medium - p
R
)
2

Where:
n = total number of notes below average
s
R
= Observed Value
Average = the mean or target value of the data set

free forex trading signals


What does the pseudo-contrast tell you?
Contrast is similar to quasi-contrast, but it only considers below-average observations. Semivariance is a useful tool in portfolio or asset analysis because it provides a measure of downside risk.

While standard deviation and variance provide measures of volatility, quasi-variance only looks at the negative volatility of an asset. Quasi-variance can be used to calculate the average loss that a portfolio can incur because it deviates all values above the average, or above, the investor's target return.
https://www.freeforex-signals.com/
For risk averse investors, identifying optimal portfolio allocations by minimizing partial covariance can reduce the likelihood of a significant depreciation of the portfolio.

free forex trading signals

Calculate using a spreadsheet
To use a spreadsheet program to calculate the quasi-variance:

Create a column - for example, Column A - that contains all of the returns in the portfolio.
Remove all returns above average from Column A.
In column B, subtract the remaining returns in column A from the mean.
In column C, square the difference, find the sum, and divide the sum by the number of returns that are below the mean.
Different spreadsheets may have different functions and some have easier ways or shortcuts to perform this calculation.

free forex signals

forex trading signals




Page 1 sur 1 | 1

Tweeter A06

Domaines skiables ouverts...

Aucune station n'est ouverte

Application mobiles

Téléchargez l'application officielle AVALANCHE 06 pour Windows Phone !

RECHERCHE FORUM