How a bar's length reads to a human: a count, and the unit it counts.
M is months, so a quarter reads as 3 and a year as 12, keeping the token
grammar's rule that lower-case m is minutes and upper-case M is a month.
tick counts trades. other is a bucket with neither a clock length nor a
trade count, which today means volume, and is where a later count-driven
mode can land without silently changing what an existing unit means.
How a bar's length reads to a human: a count, and the unit it counts.
Mis months, so a quarter reads as 3 and a year as 12, keeping the token grammar's rule that lower-casemis minutes and upper-caseMis a month.tickcounts trades.otheris a bucket with neither a clock length nor a trade count, which today means volume, and is where a later count-driven mode can land without silently changing what an existing unit means.