Replication timing help

[fengchuiguo1994]

I have six repli-Seq data (G1,S1,S2,S3,S4,G2). I want to get the repli value like Repli-chip.

1. I execute alfred replication. I found that the value are all integers in profile.tsv file. It seems they haven't done any standardization.
2. I found many -1 in reptime.tsv file, can I remove it ?
3. How do I convert them (reptime.tsv) to positive and negative values like in repli-chip file