所以,我有一个大型数据框(7000行),其排列方式如下:
head(mx)
Stem Progenitor Astrocyte Neuron genename
ENSRNOG00000000007 0.0517698 0.700234 0.11753300 4.591050 Gad1
ENSRNOG00000000010 0.0536043 0.471518 0.00741803 2.280760 Cbln1
ENSRNOG00000000012 0.0163017 0.285178 1.89533000 0.268405 Tcf15
ENSRNOG00000000024 2.7904200 0.703727 13.96940000 4.944650 HEBP1
ENSRNOG00000000028 2.5059900 2.563040 4.83952000 0.840013 Nde1
ENSRNOG00000000029 1.6204500 2.928300 15.58360000 1.750350 Myh11
我需要对此数据帧进行排序,使其按前四列中的任何值从高到低排序.因此,对于该示例,这5行的排序将是:
Stem Progenitor Astrocyte Neuron genename
ENSRNOG00000000029 1.6204500 2.928300 15.58360000 1.750350 Myh11
ENSRNOG00000000024 2.7904200 0.703727 13.96940000 4.944650 HEBP1
ENSRNOG00000000028 2.5059900 2.563040 4.83952000 0.840013 Nde1
ENSRNOG00000000007 0.0517698 0.700234 0.11753300 4.591050 Gad1
ENSRNOG00000000010 0.0536043 0.471518 0.00741803 2.280760 …