What is the best model of for the ralationship between occurrence data and continuous data?
Change occurrence data into unit of 1 day , 1 week etc. See 0-1 Data Analysis
Then change continuous data into the same unit.
Then you can links two type of data. And you can make the data set.
Single Regression Analysis or AR Model might be good as the model.
It is good checking data by Line Graph or Scatter Plot .