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The Democrats have given a green light to the Labor Party to increase taxes . The hope that those ads will generate a " groundswell of public support " is about as plausible as Atlanta 's belief that " Every Day Is an Opening Day " will draw hordes of tourists . If you attempt to make inferences based on R-squared , or on R , they may be highly fragile , unless somehow they respect the character of the model . A second example might be data on trading links between countries . Researchers are examining whether the transmissible agent is , in fact , a prion and trying to discover factors that influence prion infectivity and how the disorder damages the brain .