Collecting a set of data and attempting to discern a trend or pattern in results.

Most commonly trend analysis is applied to predict events in the future, it may also be used to determine unclear events in the past.

Trend analysis may involve comparing past and current commercial ratios, how they related to other institutions, in order to project how long the current trend can be maintained. This information is useful to investors who want to profit from their investments.

See also:
Data analysis 
Market forecast