search for: no_gene

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2010 Jan 28
2
Conditional editing of rows in a data frame
...144 1_39 1 39 PER3 1.18154967 TRUE 145 1_39 1 39 UTS2 1.18154967 TRUE 146 1_39 1 39 TNFRSF9 1.18154967 TRUE 147 1_39 1 39 PARK7 1.18154967 TRUE 148 1_39 1 39 ERRFI1 1.18154967 TRUE 149 1_40 1 40 no_gene 1.79796879 FALSE 150 1_41 1 41 SLC45A1 0.20193560 FALSE I want to create two new columns, xp.bg and xp.n.top, using the following criteria: If gene is the same in consecutive rows, xp.bg is the minimum value of xp.norm in those rows; if gene is not the same, xp.bg is simply t...