merging single cell RNA-seq data

Question

[hiam]

I want to merge single-cell RNA sequencing data to obtain a bulk data RNA-seq. (data has been normalized (CPM normalization)) is there any R package or any suggestion to do that?

[rpolicastro]

What does your input data look like?

[hiam]

i have data from 250 blood sample that their columns are genes and each row is a cell. (data was normalized to 1e6 counts per cell (CPM normalization) and then a log1p (natural log))

e.g: