Sentences with phrase «small numbers of observations»

# 57, RE small numbers, I'm no climate scientist, but I do know statisticians have methods, such as Chi - square and log - linear analysis (based on odds ratios), that are quite successful on data sets with small numbers of observations.

Apart from the small number of observations on which Salby bases his theory, the main error is in jumping from showing a correlation between temperature and short term fluctuations in CO2 to concluding that the long term trend must also be attributable to temperature.

Hence, a relatively small number of observations from Australia can contribute to the construction of a meaningful hemispheric or global average.

It is weird for me, coming from molecular modeling (and a general interest in the history of science), to see people paying so much attention to matching a very small number of observations given the large number of parameters in the model.

It is well known that one can not draw valid statistical inferences from such a small number of observations.

Not exact matches

Others simply attributed the surprising results to sweeping statistical extrapolations being made from very small numbers of events, or to systematic weaknesses in the MOA survey's observations and analyses that the 2011 paper's authors had failed to account for.

Based on Kepler observations conducted from May 2009 to September 2010, the planet findings show a dramatic increase in the numbers of smaller - size planet candidates, where Earth - size and super-Earth-size candidates have increased in number by more than 204 and 136 percent, respectively, since the last Kepler announcement in February 2011.

This sounds more like an observation based on a small number of cases rather than an established trend, and it doesn't say anything about causation.

(Almost all the African - American students came from schools with average test scores below the district mean; the few that did not had almost identical average impacts, but the number of available observations was too small to recover precise estimates.)

That evidence should be trusted over observations conducted in a small number of non-randomly selected settings.

These findings are not statistically significant due to the small number of independent observations, but they are nonetheless suggestive.

While the number of observations is too small to yield statistically significant evidence that charters are helping the district schools, they offer no help for the claim that they are having a negative impact.

With the observation of six other major feedbacks» ongoing acceleration mostly from currently small outputs, along with that of a burgeoning number of direct interactive couplings between them, I'm unable to share your view that the fossil fuel industry poses the dominant threat to climate, but would entirely agree that it is the earliest and most controllable threat.

This manual observation approach worked well when the number of climate stations was small

Even applying very strict weighting, emphasizing the small number of models closest to the observations, scarcely reduced the overall spread of results.

By definition, interpolation over a large area is being driven by a relatively small number of actual observations around the Arctic.

In fact the almost - significant negative relationship is due to observations from only a small number of years during the 1961 — 2009 period.

The differences are that in the present study we include the uncertainty in the observations as described in Sect. 2.4 and there are also small differences due to the different number of model runs used.

However, as the number of observations involved is very small, impacts on mean temperatures are minimal (for example, even a 5 °C error which affected 1 % of observations would only alter mean temperatures by 0.05 °C) and the stations are still useful in assessment of those.

The suggestion that it should is based on an observation of Lord Bingham in Razgar... He was there expressing an expectation, shared with the Immigration Appeal Tribunal, that the number of claimants not covered by the Rules and supplementary directions but entitled to succeed under Article 8 would be a very small minority.

With regard to the sample size required for valid application of this modeling approach, we are hesitant to speak of sufficient sample sizes, since a large number of observations with little score variation over time (as in our second empirical application) does not necessarily provide richer information than a smaller sample with more fluctuations.