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Αναγνώριση αν τα δεδομένα αυξάνονται, μειώνονται ή παραμένουν σταθερά με τον χρόνο.

Trend analysis examines how values change over a sequence (usually time). An increasing trend means values generally rise; decreasing means they fall; stable means little change. Line charts are ideal for spotting trends. Look at the overall direction, not just individual fluctuations—short-term dips within a rising trend don't change the overall direction.

trend = direction(end_value - start_value)

• Values: 50, 60, 55, 70, 80 → Increasing trend (despite dip at 55)
• Values: 100, 95, 90, 85 → Decreasing trend
• Values: 50, 52, 48, 51 → Stable (fluctuating around 50)

Πώς να το αναγνωρίζετε

• Compare first and last values for overall direction
• Look at the general slope of a line chart
• Ignore minor fluctuations—focus on the big picture
• Consider: is it generally going up, down, or sideways?

Συνηθισμένα λάθη

• Focusing on short-term changes rather than overall trend
• Confusing fluctuation with trend reversal
• Not considering the full time range

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