Labels:acute triangle | crt screen | earth | heart | lemon | sky | windowpane OCR: 70 40 50 Forecast Bin Planetary A-Index - All Forecasters Figure 11-24. Conditional quantile plot fornext-day Planetary A-Ind ex forecasts, January 31 Decerber 1993 The lines carrespand to the following quantiles (top tc bottom): 0.90th 0.75th (upper quartile), 0.50th (median) 0.25th (lower quartile) and 0.10th. The 45 diagonal lindicates perfect pundsains lence of forecasts and ch serva tions The spread in the quantiles related the accuracy the forerasts and the devia tion of the median from the d iagonal is related to the overallbias Forerasters rnext battom indicates correspond enceof chservations overall
