Additional file 4 of Microbial colonization and resistome dynamics in food processing environments of a newly opened pork cutting industry during 1.5 years of activity

Additional file 4. Statistical analysis for ARG classes. The first column indicates the ARG class to be compared among samples. Next columns (until the column titled Kruskal p-value) indicate average values for each sample group being compared. Kruskal p-value columns indicate the p-values for the comparison between sample groups, which are presented for each surface type and processing room on the sheets surface_time and room_time respectively. The subsequent columns indicate p-values from the Wilcoxon pair-wise test for each pair of sample groups, which are also indicated on the column head. Statistical analyses performed by sampling time are presented on the time sheet, by sampling time for each surface type on the surface_time sheet, by surface type for each of the three time groups on the TX_surface sheets, by sampling time for each room on the room_time sheet, and by processing room for each of the three time groups on the TX_room sheets. NaN means not a number, and indicates those cases where statistical analyses could not be performed due to zero values on each sample to be compared.附加文件4：抗生素抗性基因（ARG）类别统计分析。第一列用于指定需在各组样本间进行比较的ARG类别。后续列（直至标题为Kruskal检验p值的列）分别展示各待比较样本组的平均值。标注为Kruskal检验p值的列用于展示各组样本间比较的p值，其中针对每种表面类型的结果收录于surface_time工作表，针对每个处理室的结果收录于room_time工作表。后续各列则展示针对每一组样本对的Wilcoxon两两比较检验p值，对应样本组对亦会在列标题中注明。本次统计分析的结果分布如下：按采样时间汇总的结果收录于time工作表；按采样时间、分每种表面类型汇总的结果收录于surface_time工作表；按表面类型、分三个时间组中每组的结果收录于TX_surface系列工作表；按采样时间、分每个处理室汇总的结果收录于room_time工作表；按处理室、分三个时间组中每组的结果收录于TX_room系列工作表。此处NaN意为“非数值（Not a Number）”，用于标注因待比较样本的所有观测值均为0而无法开展统计分析的场景。