Trend analysis - Topics

Moving averages vs year-over-year comparison: which one lies less? A seasonal trend that fails one year is not dead How do you tell a real trend from a one-off spike in the data? What's the right baseline to compare a trend against? Small-sample trend data keeps giving me whiplash — how much can I trust it? At what adoption level does an emerging trend stop being emerging? A genuine shift and a seasonal trend can look the same for two quarters Emerging trends look like noise for a long time — how do you tell the difference? Survivorship bias is quietly wrecking most trend datasets How many data points before you can call something a trend? Does statistical significance mean a trend is worth acting on? An emerging trend and a one-year fad look identical in month three Seasonal trends hide inside annual averages Nobody tells you how much of trend data is imputed Our dashboard said growth and the raw data said flat — who's right? Breaking a series into trend vs cycle vs noise — how do analysts actually do it? Indicators that an emerging trend has already peaked The methodology appendix is where a trend report hides its weak spots Before a trend reaches the numbers it usually shows up in the signals Correlation between two rising series is not evidence of anything How do you seasonally adjust a series without fooling yourself? Lead vs lag indicators: which one should drive a decision? Half the trends on a dashboard are just mean reversion How do you backtest a trend forecast without cheating? Secular trend vs cyclical swing: why the same chart supports both readings