The object 'Nile' contains values representing measurements of the annual flow of the river Nile.
Time Series:
Start = 1871
End = 1970
Frequency = 1
[1] 1120 1160 963 1210 1160 1160 813 1230 1370 1140 995 935 1110 994 1020
[16] 960 1180 799 958 1140 1100 1210 1150 1250 1260 1220 1030 1100 774 840
[31] 874 694 940 833 701 916 692 1020 1050 969 831 726 456 824 702
[46] 1120 1100 832 764 821 768 845 864 862 698 845 744 796 1040 759
[61] 781 865 845 944 984 897 822 1010 771 676 649 846 812 742 801
[76] 1040 860 874 848 890 744 749 838 1050 918 986 797 923 975 815
[91] 1020 906 901 1170 912 746 919 718 714 740
A summary of the flow values suggests that they are right-skew (the mean is larger than the median).
|
A histogram of the values supports this view.
However, as these values are a time series, we should check whether the skew is related to a time effect. A time-series plot of the values shows that this is the case (there is a quantum shift in the values around 1900).
