/usr/share/metview/app-defaults/CommonMacroFuncs/eps is in metview-data 5.0.0~beta.1-1build1.
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# **************************** LICENSE START ***********************************
#
# Copyright 2012 ECMWF. This software is distributed under the terms
# of the Apache License version 2.0. In applying this license, ECMWF does not
# waive the privileges and immunities granted to it by virtue of its status as
# an Intergovernmental Organization or submit itself to any jurisdiction.
#
# ***************************** LICENSE END ************************************
function eps(level,param,date,area,tronc,steps)
# 33 members, for one or several steps/dates
# the result is run1(step1/date1,step2...),run2(step1,step2...),...
cs=1
cd=1
if type(steps)='list' then
if 'to' in steps then
cs=((steps[3]-steps[1])/12)+1
else
cs=count(steps)
end if
end if
if type(date)='list' then
if 'to' in date then
cd=date(date[3])-date(date[1])+1
else
cd=count(date)
end if
end if
# ensemble control (0)
runs = retrieve(
type : "cf",
stream : "ef",
levelist : level,
param : param,
date : date,
step : steps,
resol : tronc,
area : area,
grid : [2.5,2.5]
)
# perturbed fcsts, 1 to 32
ptbd = retrieve(
type : "pf",
stream : "ef",
levelist : level,
param : param,
date : date,
step : steps,
ensemble : [1,"to",32],
resol : tronc,
area : area,
grid : [2.5,2.5]
)
for i = 1 to 32 do
for k = 0 to (cs*cd)-1 do
runs = runs & ptbd[i+32*k]
end for
end for
return runs
end eps
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