Why sometimes daily average shows wrong values?

I send temperature data to chanel every ten minutes. Data is corect but sometimes visualisation on chart (daily average) shows wrong walues.

https://thingspeak.com/channels/2037516/charts/2?average=daily&bgcolor=%23ffffff&color=%23d62020&dynamic=true&results=60&round=1&title=Daily+average&type=line

For example yesterday 02.25.

https://thingspeak.com/channels/2037516

Thanks.

Answer 1

[Christopher Stapels]

Two major casues of this are blank values in your field data and timezones. I would have a look at your data using the read APIand see if there are any blank values. You can use MATLAB code to control how the zeros are taken care of. The automatic high charts on your channel view automatically average in the zeros.