IsEarly.wd: Function to detect whether a wd object is from WaveThresh2 or not
Description
Function to detect whether a wd object is from WaveThresh2 or not.
Usage
## S3 method for class 'wd':
IsEarly(x)
Arguments
x
The wd object that you are trying to check
Value
Returns TRUE if from an earlier version of WaveThresh (v2), returns
FALSE if not.
Details
The function merely looks to see whether the wd object has a component
called date. If it does not then it is from version 2. This routine
is legacy and not very important anymore.