General

Truncate Isotope Regressions

Exclude the first 10 seconds of measurement

x<10

Only use the first 50 seconds of measurement

t>50

The choice of variable is irrelevant (except for N or n which have a special meaning. see below)

a<10

is the same as

b<10

Use only the first 100 points

100

Exclude the first 20 points. (NOTE: the use of N or n tells pychron to truncate by the point number not its time since time-zero)

n<=20