Thanks for the explanation, I will have a read of the image generator section. But I am happy that I haven't messed something up.
Ian On Tue, 20 Aug 2019 at 18:45, gjr80 <[email protected]> wrote: > Have a look in the relevant skin.conf under [ImageGenerator] and then look > at the aggregate_type and aggregate_interval config options under each [[ > ]] stanza. By default the plots for week and longer periods plot an average > (set by aggregate_type config option) calculated over the > aggregate_interval period. For week this is a one hour average, month is a > three hour average and year is a one day average (day plots plots do no > averaging). Consequently week, month and year plots of data such as UV and > radiation can appear to display low values. > > One of the main reasons for this approach is to avoid excessive processor > loads/times when generating large plots. For a 5 minute archive period one > day consists of 288 data points, for a one year plot this would be over 100 > 000 data points if there was not some sort of aggregation being used. As > mentioned you can change aggregate_type to plot the maximum value if you > want a more realistic plot. Have a read of The image generator section in > the Customization Guide ( > http://weewx.com/docs/customizing.htm#image_generator) > > Gary > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/79a9d66c-c1ea-4576-9313-e5accff131b7%40googlegroups.com > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAN84nRu6UeQbkjEj9RdZtVdHSDR9%3DW1OZHjNagf7x1JL5pjV-w%40mail.gmail.com.
