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6.6 Make another data
- MGL command: subdata RES dat
xx [yy=: zz=:]
- Method on
mglData
:mglData
SubData (float
xx,float
yy=-1
,float
zz=-1
)const
- C function:
HMDT
mgl_data_subdata (HCDT
dat,float
xx,float
yy,float
zz) Extracts sub-array data from the original data array keeping fixed positive index. For example
SubData(-1,2)
extracts 3d row (indexes are zero based),SubData(4,-1)
extracts 5th column,SubData(-1,-1,3)
extracts 4th slice and so on. If argument(s) are non-integer then linear interpolation between slices is used. In MGL version this command usually is used as inline onedat(xx,yy,zz)
.
- MGL command: subdata RES dat xdat [ydat=: zdat=:]
- Method on
mglData
:mglData
SubData (const mglData &
xx,const mglData &
yy,const mglData &
zz)const
- C function:
HMDT
mgl_data_subdata_ext (HCDT
dat,HCDT
xx,HCDT
yy,HCDT
zz) Extracts sub-array data from the original data array for indexes specified by arrays xx, yy, zz (indirect access). This function work like previous one for 1D arguments or numbers, and resulting array dimensions are equal dimensions of 1D arrays for corresponding direction. For 2D and 3D arrays in arguments, the resulting array have the same dimensions as input arrays. The dimensions of all argument must be the same (or to be scalar 1*1*1) if they are 2D or 3D arrays. In MGL version this command usually is used as inline one
dat(xx,yy,zz)
.
- MGL command: column RES dat 'eq'
- Method on
mglData
:mglData
Column (const char *
eq)const
- C function:
HMDT
mgl_data_column (HCDT
dat,const char *
eq) Get column (or slice) of the data filled by formula eq on column ids. For example,
Column("n*w^2/exp(t)");
. The column ids must be defined first by idset function or read from files. In MGL version this command usually is used as inline onedat('eq')
.
- MGL command: resize RES dat
mx [my=1 mz=1]
- Method on
mglData
:mglData
Resize (int
mx,int
my=1
,int
mz=1
,float
x1=0
,float
x2=1
,float
y1=0
,float
y2=1
,float
z1=0
,float
z2=1
)const
- C function:
HMDT
mgl_data_resize (HCDT
dat,int
mx,int
my,int
mz) - C function:
HMDT
mgl_data_resize_box (HCDT
dat,int
mx,int
my,int
mz,float
x1,float
x2,float
y1,float
y2,float
z1,float
z2) Resizes the data to new size mx, my, mz from box (part) [x1,x2] x [y1,y2] x [z1,z2] of original array. Initially x,y,z coordinates are supposed to be in [0,1].
- MGL command: evaluate RES dat idat [
norm=on
] - MGL command: evaluate RES dat idat jdat [
norm=on
] - MGL command: evaluate RES dat idat jdat kdat [
norm=on
] - Method on
mglData
:mglData
Evaluate (const mglData &
idat,bool
norm=true
)const
- Method on
mglData
:mglData
Evaluate (const mglData &
idat,const mglData &
jdat,bool
norm=true
)const
- Method on
mglData
:mglData
Evaluate (const mglData &
idat,const mglData &
jdat,const mglData &
kdat,bool
norm=true
)const
- C function:
HMDT
mgl_data_evaluate (HCDT
dat,HCDT
idat,HCDT
jdat,HCDT
kdat,int
norm) Gets array which values is result of interpolation of original array for coordinates from other arrays. All dimensions must be the same for data idat, jdat, kdat. Coordinates from idat, jdat, kdat are supposed to be normalized in range [0,1] (if norm=
true
) or in ranges [0,nx], [0,ny], [0,nz] correspondingly.
- MGL command: hist RES dat
num v1 v2 [nsub=0]
- MGL command: hist RES dat wdat
num v1 v2 [nsub=0]
- Method on
mglData
:mglData
Hist (int
n,float
v1=0
,float
v2=1
,int
nsub=0
)const
- Method on
mglData
:mglData
Hist (const mglData &
w,int
n,float
v1=0
,float
v2=1
,int
nsub=0
)const
- C function:
HMDT
mgl_data_hist (HCDT
dat,int
n,float
v1,float
v2,int
nsub) - C function:
HMDT
mgl_data_hist_w (HCDT
dat,HCDT
w,int
n,float
v1,float
v2,int
nsub) Creates n-th points distribution of the data values in range [v1, v2]. Array w specifies weights of the data elements (by default is 1). Parameter nsub define the number of additional interpolated points (for smoothness of histogram). See also Data manipulation
- MGL command: momentum RES dat 'how' ['dir'='z']
- Method on
mglData
:mglData
Momentum (char
dir,const char *
how)const
- C function:
HMDT
mgl_data_momentum (HCDT
dat,char
dir,const char *
how) Gets momentum (1D-array) of the data along direction dir. String how contain kind of momentum. The momentum is defined like as res_k = \sum_ij how(x_i,y_j,z_k) a_ij/ \sum_ij a_ij if var=‘z’ and so on. Coordinates ‘x’, ‘y’, ‘z’ are data indexes normalized in range [0,1].
- MGL command: sum RES dat 'dir'
- Method on
mglData
:mglData
Sum (const char *
dir)const
- C function:
HMDT
mgl_data_sum (HCDT
dat,const char *
dir) Gets array which is the result of summation in given direction or direction(s).
- MGL command: max RES dat 'dir'
- Method on
mglData
:mglData
Max (const char *
dir)const
- C function:
HMDT
mgl_data_max_dir (HCDT
dat,const char *
dir) Gets array which is the maximal data values in given direction or direction(s).
- MGL command: min RES dat 'dir'
- Method on
mglData
:mglData
Min (const char *
dir)const
- C function:
HMDT
mgl_data_min_dir (HCDT
dat,const char *
dir) Gets array which is the maximal data values in given direction or direction(s).
- MGL command: combine RES adat bdat
- Method on
mglData
:mglData
Combine (const mglData &
a)const
- C function:
HMDT
mgl_data_combine (HCDT
dat,HCDT
a) Returns direct multiplication of arrays (like, res[i,j] = this[i]*a[j] and so on).
- MGL command: trace RES dat
- Method on
mglData
:mglData
Trace ()const
Gets array of diagonal elements a[i,i] (for 2D case) or a[i,i,i] (for 3D case) where i=0...nx-1. Function return copy of itself for 1D case. Data array must have dimensions ny,nz >= nx or ny,nz = 1.
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