plotgene2: Function to visuaze change in expression of one gene
In MAMA: Meta-Analysis of MicroArray

Various methods for meta-analysis provide different outputs. Function takes an output from function metagene as input and draws a plot.

1	plotgene2(gene, datalabels, type)

`gene`	A list, output from function `metagene`
`datalabels`	A character vector, names of the data sets and for meta-analysis results.
`type`	A numeric vector indicating which function the slots of `gene` come from. It it is not necessary, if the slots come from the results of the wrapper functions.

Function plotgene2 is based on traditional graphics, wheras function plotgene on grid.

For type please use:

0 for functions: pvalcombination, pvalcombination.paired, EScombination or EScombination.paired, metaMA
1 for function ES.GeneMeta
2 for function zScores
3 for function ScoresFDR
4 for function performSOGL
5 for function topGene or RankProduct
6 for function posterior.mean
7 for function MAP.genes or MAP.Matches
8 for function MC
9 for function compute.RQ
10 for function METRADISC