Hi @zxdawn,
T
is the “Terra” SI prefix (https://github.com/d3/d3-format#locale_formatPrefix).
You can control the display using the fig.layout.xaxis.tickformat
property. Here’s the docstring
Sets the tick label formatting rule using d3 formatting mini-
languages which are very similar to those in Python. For
numbers, see: https://github.com/d3/d3-format/blob/master/READM
E.md#locale_format And for dates see:
https://github.com/d3/d3-time-
format/blob/master/README.md#locale_format We add one item to
d3's date formatter: "%{n}f" for fractional seconds with n
digits. For example, *2016-10-13 09:15:23.456* with tickformat
"%H~%M~%S.%2f" would display "09~15~23.46"
And the default is 's'
.
Hope that helps clear things up!
-Jon