Meaning of peak matrix value

[chancxz]

Hi.
First, thanks for awesome tool(ArchR) for analyzing ATAC-seq.

When I get peak matrix from pm <- getMatrixFromProject(proj1, useMatrix='PeakMatrix'), I wonder what is a meaning of value in matrix.
In my data, the values of matrix are in ranges of 0-4.
In my opinion row names are peak ranges and column names are cell barcodes, therefore the value should be 0 or 1 for representing there is a peak or not.

I searched for a lot to figure this out, but there is no meaning about peak matrix value in tutorial or github.
I wonder what is meaning of peak matrix value, and why they are 0 to 4.

Best regards,
Chan

[rcorces]

the values are the number of insertions observed per cell in the given peak region

[chancxz]

Thank you for answer! Helped a lot!!