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Table 3 ADF and PP unit root tests

From: A time-series prediction model of acute myocardial infarction in northern of Iran: the risk of climate change and religious mourning

Variables ADF test statistics PP test statistics
AMI − 28.22 − 28.19
Average temperature − 14.34 − 14.25
Average humidity − 16.61 − 16.66
Raining − 23.74 − 23.73
Sunshine hours a day − 12.32 − 17.36
Daily evaporation rate − 3.53 − 10.17
Wind direction − 25.93 − 25.94
Wind speed − 24.75 − 24.78
Critical values   
1% − 3.43 − 3.44
5% − 2.86 − 2.86
10% − 2.56 − 2.57
  1. The maximum lag length is taken as 20