time series - cross-correlation using ccf in R -

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I want to use CCF in R to calculate cross-correlation on two sets of time-series data. The question is how can I know that the dash falls out of the blue lines without having to manually see any correlation coefficient in the plot? Since I have thousands of sets of time-series data, to deal with it thank you in advanced!

Here's how to calculate confidence interval: 

  res & Lt; - ccf (mdeaths, fdeaths, ylab = "cross-correlation") upper ci & lt; - qnorm ((1 + 0.95) / 2) / sqrt (res $ n.used) lower CI & lt; However,  help (plot.acf)  warning:  (1 + 0.95) / 2) / sqrt (res $ n. Used)  
 
 The confidence interval plotted in plot.acf is based on an unorganized chain and should be treated with due care. Using Ci.type = "ma" may be misleading.   
  type "ma" to see getAnywhere (plot.acf) .

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