Estimate recombination rate from linkage map

Question

[dp0b]

Hi

Simple question but just want to clarify how to estimate recombination rate from a genetic linkage map for a region.

Recombination rate is cM/Mb so for a linkage map like below, so recombination for each snp is cM-previous cM/((position-prev position)/1000000)

If I wish to estimate recombination rate per Mb, is it correct to take the average of the recombination rate in each Mb?

SNP Chr cM  bp_position recomb_rate
s64715327.1 1   0   120098  0
s64803054.1 1   0   315497  0
s88143.1    1   0.073   401196  0.8518
s09912.1    1   0.073   489045  0
s64747.1    1   0.204   748143  0.5056
s420114.1   1   0.244   792698  0.8977
s537224_X.1 1   0.244   912507  0
s48804.1    1   0.244   1155400 0
s40172.1    1   1.108   1245222 9.619
s26718.1    1   1.108   1390945 0