I have a given matrix with a given order "filtered2" I am using from gplots to construct a heatmap that should have the same order of rows found in the matrix, however it is still reordering even using Rowv=FALSE, this is the command that I am using it:
heatmap.2(filtered2,trace="none",density.info="none",
col=redgreen,dendrogram="none", Rowv=F,Colv=F)