R: Epoch Year

EPOCHyear {RSEIS} | R Documentation

## Epoch Year

### Description

Get year and julian day given number of days since origin

### Usage

    EPOCHyear(iday, origyr = 1972)

### Arguments

`iday` | Number of days since origin
`origyr` | origin year, default=1972

### Value

List:

`yr` | Year
`jd` | Julian day in Year

### Author(s)

Jonathan M. Lees<jonathan.lees.edu>

### See Also

EPOCHday, recdate

### Examples

    tyears   <-  1973:2009

    E1  <-  EPOCHday(tyears, jd=1,   origyr=1972       )

    EPOCHyear(E1$jday,   origyr=1972  )

    #######  here is an example using year Month and day of month
    ###  use March 19 for each year:
    ii  <-  tojul(tyears, 3, 19)-tojul(tyears, 1, 1)

    E1  <-  EPOCHday(tyears, jd=ii,  origyr=1972       )

    EPOCHyear(E1$jday,   origyr=1972  )

[Package RSEIS version 3.7-4 Index]