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  Indian J Med Microbiol
 

Figure 1: Autocorrelation function (ACF) and Partial autocorrelation function (PACF) of data and transformed series Footnote: (a) shows time series data without any difference; (b) shows transformed series with seasonal difference (1, period 12); (c) shows transformed series with nonseasonal difference (1); (d) shows transformed series with both seasonal (1, period 12) and nonseasonal difference (1)

Figure 1: Autocorrelation function (ACF) and Partial autocorrelation function (PACF) of data and transformed series Footnote: (a) shows time series data without any difference; (b) shows transformed series with seasonal difference (1, period 12); (c) shows transformed series with nonseasonal difference (1); (d) shows transformed series with both seasonal (1, period 12) and nonseasonal difference (1)