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FUNCTION: accum_pad,dat,apad PURPOSE: makes a data pad from a 3d structure INPUT: dat: A 3d data structure such as those gotten from get_el,get_pl,etc. e.g. "get_el" KEYWORDS: bdir: Add B direction esteps: Energy steps to use bins: bins to sum over num_pa: number of the pad CREATED BY: Davin Larson LAST MODIFICATION: %W% %E%
(See general/science/wind/accum_pad.pro)
PROCEDURE: add_all
PURPOSE:
adds user defined structure elements to the 3d structures.
USAGE:
add_all,dat,add
INPUT:
dat: A (3d) data structure.
add: a structure such as: {vsw:'Vp' , magf:'B3', sc_pos:'pos'}
RESULTS:
for the above example, the elements, vsw, magf, and sc_pos are
added to the dat structure. The values are obtained from the tplot
variables 'Vp', 'B3' and 'pos' respectively.
(See general/science/wind/add_all.pro)
PROCEDURE: add_magf,dat,source
PURPOSE:
Adds magnetic field vector [Bx,By,Bz] to a 3d structure.
The new structure element will be a 3 element vector
with the tag name 'magf'.
INPUT:
dat: 3D data structure (i.e. from 'GET_EL')
[source] : (String) handle of magnetic field data.
Notes:
Magnetic field data must be loaded first.
See 'GET_MFI'
(See general/science/wind/add_magf.pro)
PROCEDURE: add_sc_pos,dat,source
PURPOSE:
Adds orbital data to a 3d data structure.
The new structure element will be a three element vector [x,y,z]
with the tag name 'sc_pos'.
INPUT:
dat: 3D structure (obtained from get_??() routines)
e.g. "GET_EL"
Notes:
Orbit data must be loaded first.
See "GET_ORBIT"
(See general/science/wind/add_sc_pos.pro)
PROCEDURE: bkg_file,bkg [,filename] PURPOSE: saves and restores background data files. if filename is not a string then a filename is generated automatically. INPUT: bkg: a 3d background data structure. filename: optional filename. KEYWORDS: One must be set! SAVE: set to save files. RESTORE:set to restore files.
(See general/science/wind/bkg_file.pro)
PROCEDURE: dat_file,dat [,filename] PURPOSE: saves and restores 3d data files. if filename is not a string then a filename is generated automatically. INPUT: dat: a 3d background data structure. filename: optional filename. KEYWORDS: One must be set! SAVE: set to save files. RESTORE:set to restore files. DIR: (string) Directory to use. Default is current directory
(See general/science/wind/dat_file.pro)
NAME:
distfunc
FUNCTION: distfunc(vpar,vperp,param=dfpar)
or distfunc(energy,angle,mass=mass,param=dfpar)
PURPOSE:
Interpolates distribution function in a smooth manner.
USAGE:
dfpar = distfunc(vx0,vy0,df=df0) ; Create structure dfpar using
values of df0 known at the positions of vx0,vy0
df_new = distfunc(vx_new,vy_new,par=dfpar)
return interpolated values of df at the new points.
(See general/science/wind/distfunc.pro)
PROCEDURE: get_moment3d,dat,ERANGE=erange,BINS=bins,HIGHRANGE=highrange INPUT: dat:function (string) function that returns 3d data structures function name must be "get_"+"dat" dat = 'pl' for get_pl, dat = 'el' for get_el, etc. KEYWORDS (all optional) erange: intarr(2), min,max energy bin numbers for integration PURPOSE: To generate moment time series data for TPLOT SEE ALSO: "MOMENT_3D" CREATED BY: Davin Larson LAST MODIFICATION: %E% FILE: %M% VERSION %I%
(See general/science/wind/get_moment3d.pro)
PROCEDURE: get_padspec
PURPOSE:
Creates "TPLOT" variable by summing 3D data over selected angle bins.
INPUT: data_str, a string(either 'eh','el','ph','pl','sf',or 'so' at
this point) telling which data to get.
KEYWORDS: bins: a keyword telling which bins to sum over
gap_time: time gap big enough to signify a data gap (def 200)
no_data: returns 1 if no_data else returns 0
units: convert to these units if included
NAME: New name of the Data Quantity
BKG: A 3d data structure containing the background counts.
FLOOR: Sets the minimum value of any data point to sqrt(bkg).
ETHRESH:
MISSING: value for bad data.
CREATED BY: Davin Larson
FILE: %M%
VERSION: %I%
LAST MODIFICATION: %E%
NOTES: "LOAD_3DP_DATA" must be called first to load up WIND data.
(See general/science/wind/get_padspec.pro)
FUNCTION: moments_3d,data
INPUT:
data: structure, 3d data structure. (i.e. see "GET_EL")
erange:
bins:
PURPOSE:
Returns all useful moments as a structure
KEYWORDS:
dmoments: If set to a named varaible this will output a structure
identical to the return structure but containing error
esimates assuming an error of sqrt(N) for an initial
measurement of N counts (poisson distribution).
unit_scaling: Input array specifying the values used to convert from
counts to the current units. If not set, a unit conversion
will be called to determine the values instead.
no_unit_conversion: Flag indicating that data is already in eflux and
no unit conversion is required.
These optional keywords control calculations:
ERANGE intarr(2), min,max energy bin numbers for integration.
BINS bytarr(nbins), Angle bins for integration, see "EDIT3DBINS"
CREATED BY: Davin Larson
LAST MODIFICATION: %E%
$Id:$
(See general/science/wind/moments_3d.pro)
FUNCTION: moments_3du,data,ddata
INPUT:
data: structure, 3d data structure, contains raw data for moment calculation. (i.e. see "GET_EL")
ddata: Named variable in which to return moments uncertainties.(returned as 3d particle data structure)
Return Value:
Function call returns 3d moment data structure with moments calculated.
PURPOSE:
Returns all useful moments as a structure
KEYWORDS:
These optional keywords control calculations:
ERANGE intarr(2), min,max energy bin numbers for integration.
BINS bytarr(nbins), Angle bins for integration, see "EDIT3DBINS"
Example:
moments_out = moments_3du(raw_data_in,moment_uncertainties_out)
CREATED BY: Davin Larson, Jim McTiernan
$LastChangedBy: jimmpc1 $
$LastChangedDate: 2013-08-05 14:26:49 -0700 (Mon, 05 Aug 2013) $
$LastChangedRevision: 12796 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_3_2/general/science/wind/moments_3du.pro $
$Id: moments_3du.pro 12796 2013-08-05 21:26:49Z jimmpc1 $
(See general/science/wind/moments_3du.pro)
FUNCTION: moments_3d_omega_weights
PURPOSE:
Helper function used by moments_3d and moments_3du
KEYWORDS:
CREATED BY: Davin Larson, Jim McTiernan
$LastChangedBy: lphilpott $
$LastChangedDate: 2012-06-25 14:55:35 -0700 (Mon, 25 Jun 2012) $
$LastChangedRevision: 10636 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_3_2/general/science/wind/moments_3d_omega_weights.pro $
$Id: moments_3d_omega_weights.pro 10636 2012-06-25 21:55:35Z lphilpott $
(See general/science/wind/moments_3d_omega_weights.pro)
PROCEDURE: reduce_var_dimensions,data,limits
INPUT: data: a structure with elements:
x (typically time)
y (3 dimensional data array)
v1
v2
limits: a structure with elements:
v1_range: bin range for dimension 1 (two element array)
v2_range: bin range for dimension 2 (two element array)
avg_var: 1 or 2. variable to sum over
Caution: This procedure is still in development.
Created by: Davin Larson, Sept 1995
File: %M%
Version: %I%
Last Modified: %E%
(See general/science/wind/reduce_var_dimensions.pro)
FUNCTION: rotate_data,x,rotmatrix
INPUT: several options exist for x:
string: data associated with the string is used.
structure: data.y is used
1 dimensional array
2 dimensional array
rotmatrix: typically a 3 by 3 rotation matrix.
RETURN VALUE: Same dimensions and type as the input value of x.
KEYWORDS:
name: a string that is appended to the input string.
EXAMPLES:
name
(See general/science/wind/rotate_data.pro)
PROCEDURE: tsmooth2, name, width, newname=newname
PURPOSE:
Smooths the tplot data.
INPUTS:
name: The tplot handle.
width: Integer array, same dimension as the data. Default is 10.[NB: the IDL routine used to smooth the data will
automatically add 1 if the width is even]
newname: name to assign to the output tplot variable. Default is name+'_sm'
preserve_nans: (Added 20 dec 2011 lphilpott) set this keyword to not smooth over nans in the data.
edge_truncate: If set, this keyword is passed to the smooth routine
median: flag to use median instead of arithmetic average (added 2016-08-05)
even: flag to use average of the two middle points when median is requested with
an even width (normally uses larger)
NOTES:
-Finite values larger than 1.9e20 are ignored and replaced with 2.0e20 in the result.
The average of the two adjacent points is used instead when calculating the mean/median.
The adjacent points are not re-checked so multiple adjacent values > 1.9e20 will
still be used.
Documentation not complete....
CREATED BY: REE 10/11/95
Modified by: D Larson.
LAST MODIFICATION: %M%
$LastChangedBy: aaflores $
$LastChangedDate: 2016-08-05 19:02:36 -0700 (Fri, 05 Aug 2016) $
$LastChangedRevision: 21605 $
$URL: svn+ssh://thmsvn@ambrosia.ssl.berkeley.edu/repos/spdsoft/tags/spedas_3_2/general/science/wind/tsmooth2.pro $
(See general/science/wind/tsmooth2.pro)
FUNCTION: velocity(energy,mass) PURPOSE: Returns the relativistic momentum over mass given the energy and mass
(See general/science/wind/velocity.pro)