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Re: [ferret_users] Monthly average from 10 day mean Data




Hi Sangeeth,

You need to use Patrick Brockmann's contributed script def_monthaxis_days.jnl.

go/help def_monthaxis_days

will give you some info on how to use it.


Something like

go def_monthaxis_days STANDARD 2010 2014 mytaxis

or

go def_monthaxis_days NOLEAP 2010 2014 mytaxis


and

let var_monthly_ave = var[gt=mytaxis@ave] ! Regrid to monthly time axis using average

Russ


On 03/02/16 00:53, Sangeeth M wrote:
Hi Ferret users,

I want to calculate the monthly average of my data, which is having mean of 10 Days for each month. The time axis of my data is as follows.
 
  sh axis taxis
  name       axis              # pts   start                end
  TAXIS     TIME               171 i   10-JAN-2010 00:00    30-SEP-2014 00:00
  T0 = 15-JAN-1901 00:00:00
  Axis span (to cell edges) = 1734
     
Listing of data at a particular point is as below

 10-JAN-2010 00 /   1:  101.4
 20-JAN-2010 00 /   2:  100.5
 30-JAN-2010 00 /   3:   53.4
 10-FEB-2010 00 /   4:   42.1
 20-FEB-2010 00 /   5:   50.1
 28-FEB-2010 00 /   6:   42.5
 10-MAR-2010 00 /   7:   50.1
 20-MAR-2010 00 /   8:   52.3
 30-MAR-2010 00 /   9:   53.7
 10-APR-2010 00 /  10:   54.5
 20-APR-2010 00 /  11:   60.5
 30-APR-2010 00 /  12:   55.7
 10-MAY-2010 00 /  13:   53.0
 20-MAY-2010 00 /  14:   77.6
 30-MAY-2010 00 /  15:   55.0
 10-JUN-2010 00 /  16:   75.1
 20-JUN-2010 00 /  17:   75.5
 30-JUN-2010 00 /  18:   76.1
 10-JUL-2010 00 /  19:   77.1
 20-JUL-2010 00 /  20:   77.9
 30-JUL-2010 00 /  21:   77.6
 10-AUG-2010 00 /  22:   76.3
 20-AUG-2010 00 /  23:   75.7
 30-AUG-2010 00 /  24:  101.1
 10-SEP-2010 00 /  25:   81.1
 20-SEP-2010 00 /  26:   85.9
 30-SEP-2010 00 /  27:  101.0
 10-OCT-2010 00 /  28:  104.4
 20-OCT-2010 00 /  29:   45.7
 30-OCT-2010 00 /  30:  125.4
 10-NOV-2010 00 /  31:  123.2
 20-NOV-2010 00 /  32:  107.3
 30-NOV-2010 00 /  33:  116.7
 10-DEC-2010 00 /  34:  129.0
 20-DEC-2010 00 /  35:  126.0
 30-DEC-2010 00 /  36:  114.5
 10-JAN-2011 00 /  37:  125.7
 20-JAN-2011 00 /  38:   98.4
 30-JAN-2011 00 /  39:   51.1
 10-FEB-2011 00 /  40:  100.5
 20-FEB-2011 00 /  41:   87.0
 28-FEB-2011 00 /  42:   76.0
 10-MAR-2011 00 /  43:   33.6
 20-MAR-2011 00 /  44:   71.3
 30-MAR-2011 00 /  45:   77.5
 10-APR-2011 00 /  46:   76.4
 20-APR-2011 00 /  47:   54.7
 30-APR-2011 00 /  48:   53.7
 10-MAY-2011 00 /  49:   89.2
 20-MAY-2011 00 /  50:   75.1
 30-MAY-2011 00 /  51:   57.8
 10-JUN-2011 00 /  52:   55.0
 20-JUN-2011 00 /  53:   55.1
 30-JUN-2011 00 /  54:   77.2
 10-JUL-2011 00 /  55:   75.9
 20-JUL-2011 00 /  56:   78.2
 30-JUL-2011 00 /  57:   75.6
 10-AUG-2011 00 /  58:   51.1
 20-AUG-2011 00 /  59:   50.5
 30-AUG-2011 00 /  60:   50.3
 10-SEP-2011 00 /  61:   44.2
 20-SEP-2011 00 /  62:   34.4
 30-SEP-2011 00 /  63:   40.4
 10-OCT-2011 00 /  64:   53.0
 20-OCT-2011 00 /  65:   52.9
 30-OCT-2011 00 /  66:   56.3
 10-NOV-2011 00 /  67:   73.2
 20-NOV-2011 00 /  68:   52.5
 30-NOV-2011 00 /  69:   48.9
 10-DEC-2011 00 /  70:   45.5
 20-DEC-2011 00 /  71:   77.6
 30-DEC-2011 00 /  72:  102.7
 10-JAN-2012 00 /  73:   94.9
 20-JAN-2012 00 /  74:  100.9
 30-JAN-2012 00 /  75:   82.1
 10-FEB-2012 00 /  76:   76.0
 20-FEB-2012 00 /  77:   75.8
 28-FEB-2012 00 /  78:   76.5
 10-MAR-2012 00 /  79:   55.1
 20-MAR-2012 00 /  80:   76.4
 30-MAR-2012 00 /  81:   62.2
 10-APR-2012 00 /  82:   52.0
 20-APR-2012 00 /  83:   50.1
 30-APR-2012 00 /  84:   51.0
 10-MAY-2012 00 /  85:   75.4
 20-MAY-2012 00 /  86:   76.1
 30-MAY-2012 00 /  87:   76.9
 10-JUN-2012 00 /  88:   83.1
 20-JUN-2012 00 /  89:   79.7
 30-JUN-2012 00 /  90:   79.8
 10-JUL-2012 00 /  91:   63.7
 20-JUL-2012 00 /  92:   76.0
 30-JUL-2012 00 /  93:   79.8
 10-AUG-2012 00 /  94:   77.2
 20-AUG-2012 00 /  95:   64.6
 30-AUG-2012 00 /  96:   58.8
 10-SEP-2012 00 /  97:   55.4
 20-SEP-2012 00 /  98:   46.3
 30-SEP-2012 00 /  99:   51.1
 10-OCT-2012 00 / 100:   76.6
 20-OCT-2012 00 / 101:   77.9
 30-OCT-2012 00 / 102:   78.2
 10-NOV-2012 00 / 103:   78.1
 20-NOV-2012 00 / 104:   78.3
 30-NOV-2012 00 / 105:   78.1
 10-DEC-2012 00 / 106:   74.2
 20-DEC-2012 00 / 107:   73.1
 30-DEC-2012 00 / 108:   74.2
 10-JAN-2013 00 / 109:  115.6
 20-JAN-2013 00 / 110:  101.2
 30-JAN-2013 00 / 111:   77.7
 10-FEB-2013 00 / 112:   81.7
 20-FEB-2013 00 / 113:   78.5
 28-FEB-2013 00 / 114:   75.9
 10-MAR-2013 00 / 115:   70.9
 20-MAR-2013 00 / 116:   33.6
 30-MAR-2013 00 / 117:   39.4
 10-APR-2013 00 / 118:   58.9
 20-APR-2013 00 / 119:   50.4
 30-APR-2013 00 / 120:   45.2
 10-MAY-2013 00 / 121:   83.9
 20-MAY-2013 00 / 122:  109.2
 30-MAY-2013 00 / 123:   60.3
 10-JUN-2013 00 / 124:   82.3
 20-JUN-2013 00 / 125:  101.3
 30-JUN-2013 00 / 126:   93.2
 10-JUL-2013 00 / 127:   77.4
 20-JUL-2013 00 / 128:   77.5
 30-JUL-2013 00 / 129:   76.5
 10-AUG-2013 00 / 130:   77.4
 20-AUG-2013 00 / 131:   76.2
 30-AUG-2013 00 / 132:   75.0
 10-SEP-2013 00 / 133:   78.7
 20-SEP-2013 00 / 134:   55.6
 30-SEP-2013 00 / 135:   28.9
 10-OCT-2013 00 / 136:   58.9
 20-OCT-2013 00 / 137:   54.4
 30-OCT-2013 00 / 138:   55.7
 10-NOV-2013 00 / 139:   75.6
 20-NOV-2013 00 / 140:   57.9
 30-NOV-2013 00 / 141:   75.2
 10-DEC-2013 00 / 142:   78.0
 20-DEC-2013 00 / 143:   89.1
 30-DEC-2013 00 / 144:   79.3
 10-JAN-2014 00 / 145:   87.4
 20-JAN-2014 00 / 146:   76.2
 30-JAN-2014 00 / 147:   65.7
 10-FEB-2014 00 / 148:   53.4
 20-FEB-2014 00 / 149:   54.0
 28-FEB-2014 00 / 150:   53.4
 10-MAR-2014 00 / 151:   30.3
 20-MAR-2014 00 / 152:   17.6
 30-MAR-2014 00 / 153:   30.3
 10-APR-2014 00 / 154:   19.5
 20-APR-2014 00 / 155:   39.6
 30-APR-2014 00 / 156:   19.5
 10-MAY-2014 00 / 157:   48.0
 20-MAY-2014 00 / 158:   53.4
 30-MAY-2014 00 / 159:   48.0
 10-JUN-2014 00 / 160:   60.0
 20-JUN-2014 00 / 161:  102.1
 30-JUN-2014 00 / 162:   60.0
 10-JUL-2014 00 / 163:   85.9
 20-JUL-2014 00 / 164:  102.8
 30-JUL-2014 00 / 165:   85.9
 10-AUG-2014 00 / 166:  101.3
 20-AUG-2014 00 / 167:   85.2
 30-AUG-2014 00 / 168:  101.3
 10-SEP-2014 00 / 169:    5.6
 20-SEP-2014 00 / 170:   25.7
 30-SEP-2014 00 / 171:   50.6




I would be grateful, if anybody can help me regarding this problem.. 



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