The shape of the curve is very important kurtosis. From Wordnik.com. [Whitfield subCommittee II: Mann under fire « Climate Audit] Reference
From the detrended datasets, we find the kurtosis to be. From Wordnik.com. [Willis E on Hansen and Model Reliability « Climate Audit] Reference
I presume there was minimal kurtosis in these distributions. From Wordnik.com. [Seven-Year WMAP Results: No, They're NOT Anomalies | Universe Today] Reference
In this case, unlike natural data, the scenarios all exhibit positive kurtosis. From Wordnik.com. [Willis E on Hansen and Model Reliability « Climate Audit] Reference
The variates not the observations have the same mean, variance, skew, kurtosis, etc. From Wordnik.com. [Paul Linsay's Poisson Fit « Climate Audit] Reference
For example, all the statistical moments cumulants — mean, variance, skew, kurtosis. From Wordnik.com. [Willis E on Hansen and Model Reliability « Climate Audit] Reference
You explain this as random chance, and worry that financial markets display high kurtosis. From Wordnik.com. [Ferson et al. on Interactions between Data Mining and Spurious Regression « Climate Audit] Reference
Natural temperatures tend to have negative kurtosis they are “fat tailed”, for example. From Wordnik.com. [Willis E on Hansen and Model Reliability « Climate Audit] Reference
There is a kurtosis measure, a fourth moment as standard deviation is a second moment, for this variation. From Wordnik.com. [A Dark, Misleading Force] Reference
To quantify this thought, how far do the sample skew and kurtosis actually deviate from 0 and 3, respectively?. From Wordnik.com. [Willis on Santer et al 2006 « Climate Audit] Reference
Or traditional bell curves do not apply because of non-normal distributions were distribution shapes tested for skew, kurtosis, etc?. From Wordnik.com. [IPCC Review Comments Now Online « Climate Audit] Reference
Individual models differ from observational results in a large variety of measurements, such as standard deviation, skewness, kurtosis, and normality. From Wordnik.com. [Gavin vs Kaufmann « Climate Audit] Reference
A more meaningful comparison with observations is to compare such things as the range, average, skewness, kurtosis, and normality of the resulting model temperature datasets. From Wordnik.com. [Gavin vs Kaufmann « Climate Audit] Reference
Normally they keep the tech-talk to minimum, but this one had a few eye-glazers: “Probability density function” and “variance and the kurtosis of the distribution changes”. From Wordnik.com. [Unthreaded #19 « Climate Audit] Reference
Oh, and on my normal curve hypothesis above, I'm going to add to it further by saying that if customization comes in, the curve gets pressed down flatter kurtosis for stats geeks, but stays normal. From Wordnik.com. [Invidious Comparison] Reference
Further to #36: Thinking about this some more, the options point implies that we are interested not just in the mean and variance of the distribution but also the “tails” — skewness, kurtosis etc. From Wordnik.com. [Gerry Browning: Numerical Climate Models « Climate Audit] Reference
I would guess that a chi square goodness of fit test or a kurtosis/skewness test for normality would not eliminate a Poisson and/or a normal distribution as applying here without the sinusoidal correction. From Wordnik.com. [Paul Linsay's Poisson Fit « Climate Audit] Reference
I also understand standard deviation, standard error, R2, arima models, the law of large numbers, skew, kurtosis, the Jarque-Bera test for normality, autocorrelation, and the power content of complex signals. From Wordnik.com. [Jones et al [1998]: Confidence Intervals « Climate Audit] Reference
I am more familiar with a chi squared goodness of fit test of the binned distribution compared to that for a nomal distribution and/or something like a Jarque-Bera test based on the sample kurtosis and skewness. From Wordnik.com. [Willis on Santer et al 2006 « Climate Audit] Reference
Used generally in the statistical field, kurtosis describes trends in charts. From Wordnik.com. [Safehaven] Reference
Return, skew and excess kurtosis turn negative even though those statistics were all positive for the target. From Wordnik.com. [SeekingAlpha.com: Home Page] Reference
If we dropped the largest 50 banks, the kurtosis would increase by much less and the skewness would fall instead of increasing. From Wordnik.com. [Latest Articles] Reference
Changed the formulas used for calculating sample skewness and sample kurtosis to match the formulas used in statistical software such as R. From Wordnik.com. [VersionTracker: Mac OS X] Reference
I mention this because mean and st. dev. are very sensitive to outliers and (I think) should be "taken with a grain of salt" unless skew and kurtosis are also reported. From Wordnik.com. [RealClimate] Reference
A high kurtosis portrays a chart with fat tails and a low, even distribution, whereas a low kurtosis portrays a chart with skinny tails and a distribution concentrated toward the mean. From Wordnik.com. [Safehaven] Reference
I've never seen a project in trouble because the manager couldn't define kurtosis, but I've seen dozens of projects discover that summing work estimates bears little relation to calendar progress. From Wordnik.com. [SD Times Latest News] Reference
Studies have exposed serious departures from the price process fundamental to Black-Scholes: skewness, excess kurtosis (i.e., concentration of prices around the mean), serial correlation, and time varying volatilities. From Wordnik.com. [Recently Uploaded Slideshows] Reference
This new version extends the kurtosis control capabilities offered to its Laser USB customers, allowing an even wider range of test simulations of real world vibration environments, such as rough highways or off-road travel. From Wordnik.com. [ClickPress] Reference
Third, the largest banks own an even larger share of total assets, making the right tail of the distribution even thicker, a measure of the thickness of a distribution tail-the kurtosis-has increased from 5.4 in 1987 to 6.7 in 2009. From Wordnik.com. [Latest Articles] Reference
Other valuable measures include the skew, kurtosis, normality, autocorrelation, and second derivatives ‘ˆ’€’ˆ’€T of the temperature datasets. From Wordnik.com. [Willis E on Hansen and Model Reliability « Climate Audit] Reference
(kurtosis), i.e. low probability events happen much more often in financial markets than a Gaussian distribution would ever predict, and there is a high variance among different types of financial markets making a one size fits all construct inadequate. From Wordnik.com. [US Market Commentary from Seeking Alpha] Reference
I had a bout of kurtosis once. From Wordnik.com. [Unthreaded #19 « Climate Audit] Reference
High school Trivia of kurtosis. From Wordnik.com. [Answerbag: Latest Questions in Question Categories] Reference
· Statistical analysis: mean, median, standard error, variance, skewness, kurtosis. From Wordnik.com. [Softpedia - Windows - All] Reference
Descriptive statistics (e.g. mean, sum, standard deviation, coefficient of variation, quartiles, skewness, kurtosis, etc.). From Wordnik.com. [20 Newest Free Software Downloads - Freeware Files.com] Reference
Count, mean, median, minimum, maximum, range, variance, standard deviation, standard error, coefficient of variation, skew, kurtosis and frequencies are supported. From Wordnik.com. [Softpedia - Windows - All] Reference
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