xefun 0.1.5

• the ‘to’ argument in date_from function supports vector
• added an inner function dat_filter to filter data set by given date range

xefun 0.1.4

• fixed a bug in the date_num function

xefun 0.1.3

• added a new function date_num to convert date to number
• fixed a few bugs

xefun 0.1.2

• added cols_type and cols_const function
• fixed a bug in date_from function

xefun 0.1.1

• Fixed a few bugs

xefun 0.1.0

• Initial version