0.0
(less in last 7 days)
6.0
(more in last 7 days)
7/180 ratio: The deeper the color, the more search query in the last 7 days compared to the average of last 180 days.
-1.5
(negative slope)
+1.5
(positive slope)
linear: The deeper the color, the greater the rate of change search query is in the last 7 days. It is similar to having the 1st derivative of the sequence as a smooth function.
(here each day is average of past 7 day of raw data)
-1.5
(concave down)
+1.5
(concave up)
quadratic: The deeper the color, the more concave up/down the trend of search query is in the last 7 days. It is similar to having the 2nd derivative of the sequence as a smooth function.
(here each day is average of past 7 day of raw data)