The residuals from regression models were analysed to assess the existence of trends in the errors.
The observation of 39 companies provides statistically reliable results, which may indicate the existence of trends and confirm some of the research propositions.
The existence of trends in hydro-climatic variables such as rainfall is an indication of potential climate variability and climate change and the identification of such trends in rainfall is essential for the planning and design of sustainable water resources.
Popper does not, of course, dispute the existence of trends, nor does he deny that the observation of trends can be of practical utility value but the essential point is that a trend is something which itself ultimately stands in need of scientific explanation, and it cannot therefore function as the frame of reference in terms of which anything else can be scientifically explained or predicted.
The analysis by Frost et al did not indicate the existence of trends and as no time plots were provided, it is uncertain whether this phenomenon is restricted to Ontario, or has occurred elsewhere as well.
The χ statistics for trend was used to verify the existence of a trend across ordered groups (such as increase in HPV positivity) according to the degree of cytological abnormality.
The existence of a trend over time in hospitalised fall-related injuries was tested using a chi-square test for trend.
He couldn't imagine actually strangling anyone, but the existence of the trend lofted him up on a dizzy little puff of curiosity.
The point of confluence of the two diagrams of u and u′ indicates a substantial point of variation and the existence of the trend.
Comparisons of fossils and/or inferences drawn from phylogenetic analyses2 are usually necessary to establish the existence of a trend, and these generally require considerable effort.
