Пусть и тут будет пример.
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### PLOT FIGURE WITH TIME OX AXIS
# converts all datetime rows on the file into numeric format
all_data$start_numeric <- as.numeric(all_data[,1]) # column 1 and 2 contain datetime values in special datetime format, ddmmyyyy hhmmss
all_data$end_numeric <- as.numeric(all_data[,2
(
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