But the "trend" rate of growth discussed by forecasters and, yes, by journalists is never as fixed as they make it seem: it can be influenced by shocks like rising oil prices or wars.This may obscure deeper relationships hidden in the data, posing tricky problems for statisticians.
Complexity of the data poses a challenge.
The size of the data poses problems in input/output, storage, and network transfer.
Limitations of the data pose some challenges for interpretation of results.
Finally, the cross-sectional nature of the data poses another limitation which limited our ability to establish the direction of the relationship between variables.
Making sense of the vast amount of data is difficult: on one hand, the sheer size of the data poses challenges; on the other hand, the complexity of the data, which includes situations in which data is noisy, high-dimensional, and/or incomplete, is perhaps an even more significant challenge.
Nevertheless, the data pose some limitations.
The data pose a number challenges for traditional meta-analysis.
These characteristics of the data pose the following challenges for existing methods.
