Name

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      YMD2DN

Purpose

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      Convert from year, month, day to day number of year.

Category

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Calling Sequence

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      dy = ymd2dn(yr,m,d)

Inputs

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      yr = year (like 1988). scalar or vector
      m = month number (like 11 = Nov). scalar or vector
      d = day of month (like 5). scalar or vector

Keyword Parameters

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Outputs

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      dy = day number in year (like 310). out

Common Blocks

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Notes

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Modification History

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      Written by R. Sterner, 20 June, 1985.
      Johns Hopkins University Applied Physics Laboratory.
      RES 18 Sep, 1989 --- converted to SUN
      R. Sterner, 1997 Feb 3 --- Made work for arrays.
  Copyright (C) 1985, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.
Converted to IDL V5.0 W. Landsman 2-Jan-1998