The Collinge team's results, Bertranpetit and his coworkers argue, had been statistically skewed because its study left low frequency
variations out of the analysis, an error known as «ascertainment bias.»
Not exact matches
The goal
of the
analysis was to strip
out the effects
of luck and
variation to come to an answer to the question: «What do managers do to make companies great?»
The researchers realized that one particular
analysis variation was spitting
out false positives at a rate
of up to 70 percent.
Using a genome - wide association study (GWAS) that includes 1600 individuals living in Tanzania, Botswana, or Ethiopia, the authors identified regions
of the genome that contribute to skin color
variation and carried
out a series
of analyses to pinpoint the responsible genes.
Genetic
analysis showed that the ants from all the study sites were closely related, Suarez said, ruling
out the possibility that size
variation was the result
of long - term evolutionary change.
The
analysis showing big
variations in subject take - up has been carried
out by the Open Public Services Network, which provides an independent assessment
of public sector performance data.
A similar conclusion was drawn from a similar
analysis applied to a (spatially sparse) global network
of monthly mean temperatures, where the effect
of spatial dependencies for inter-annual and inter-decadal
variations could be ruled
out (Benestad, 2004).
Now that gap in research has been plugged, according to scientists who carried
out a detailed
analysis of temperature
variations at both poles.
In that context, I find the results
of Shaviv particularly interesting with their cosmic ray link: Shaviv (2005) carried
out a similar
analysis for 6 different time scales, ranging from the 11 - yr solar cycle to the climate
variations over geological time scales.
For example, Gavin's Pussycat has already pointed
out that in their
analysis they did not take into proper account how polar amplification results in larger swings in temperature at higher latitudes — and that when estimating temperature
variation at lower latitudes on the basis
of proxies at higher latitudes one has to scale down the
variation, that is recognize that the swings in temperature will be smaller at those lower latitudes.
«Sometimes you see things you expect to see and there are several initiatives
out there I would expect — contract
analysis, I expect we'll see that — but there will be lots
of proposed applications that will be a
variation on the usual or that will be completely new to us, that's what's so exciting to us.
However, the motion judge failed to apply the
analysis set
out in D.B.S. and Gray and erred by ordering
variation retroactive to a date prior to the date
of the material change.