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 LAMBCONT 
 
 

Tells the Maximum Entropy minimizer which lambda controlling should 
be used.
If LAMBCONT is 0 no controlling is done and Lambda is kept at its 
initial value may be used for hand made lambda control.
If LAMBCONT is 1  lambda is computed such as dQ.dS = 0.0  if conv<1  
(dC dS angle larger than pi/2)
If LAMBCONT is 2  lambda is computed such as cos(dQ,-dC) = 
cos(dQ.dS) if lambcont.eq.2

see also : ALGO LAMBDA LAMBSP MAXENT

 
 LAMBDA 
 
 

Used to set the value for Lambda when no lambda controlling is used.

see also : ALGO LAMBCONT LAMBSP MAXENT

 
 LAMBSP 
 
 

Constant used to increment lambda (1 .. 20) The larger the value of 
LAMBSP, the faster is the advancement of the Maximum Entropy run .
A too large value for LAMBSP may hamper the correct convergence of 
the program, a value too small may stop the convergence. Typical 
values are within 3..5 

see also : ALGO LAMBCONT LAMBDA MAXENT

 
 largest_3d 
 
 


 This macro prints the sizes of the largest 3D which can be processed
 with the current version of Gifa.


 
 LB 
 
 

Constant used for exponential deconvolution. The value is loaded 
from the last EM command. A non-zero value indicates the program to 
do Lorentzian deconvolution during a Maximum Entropy  run (if FILTER 
is 1).

see also : EM FILTER GB GM

 
 LEVEL 
 
 

LEVEL n
number of levels to be plotted by the plot command in 2D and in  the 
contour plot graphic window, and in 3D contour. Default is 8; 
maximum is 64.

see also : CDISP2D PLOT PLOT3D

 
 LEVELHYSTE 
 
 

LEVELHYSTE value
internal value for BCORR 3 algorithm

see also : BCORR BCORRP?

 
 LEVELSEGM2 
 
 

LEVELSEGM2 value
internal value for BCORR 3 algorithm

see also : BCORR BCORRP?

 
 LINEFIT 
 
 

linefit line_shape
where line_shape is Lorentz / Gauss used to determine the fitted 
line-shape (Lorentzian or Gaussian).
Starts the line fitter, the parameter of the line will be modified 
to the best fit of the current spectrum using the Levenberg-
Marquardt method. The fit is estimated with a chi squared value, 
computing on the displayed region, using the value of the noise. 
Optimum fit is btained for a chi squared equal to 1. This value is 
return in the $CHI2 variable. The program will fit the currently 
displayed region, using the values in the peak table as starting 
values, and returning the fitted values in the same peak table. Uses 
the values of TOLERANCE and ITER for the run. All the values in the 
peak-table will be used, but only the line in the displayed region 
will be adjusted. Unknown line shapes will be assumed to be 
Lorentzian.

see also : GET LINEFITD NOISE PK->DT plot_fit SHOW show_fit

 
 linefit.g 
 
 

 linefit.g
 graphic interface for the linefit command.

 
 LINEFITD 
 
 

linefitd { peak_to_fit  line_shape amplitude frequency line_width } 
n times   0

Start the line fitter, fitting only the selected parameters to fit. 
The command will prompt for the index of the peak to fit, for the 
parameters to fit for that peak. Several peaks can be fitted at 
once, the list is finished with a 0.
All questions are answered with yes/no, but line_shape  which is to 
be Lorentz/Gauss for Loretzian or Gaussian line-shapes.
In all cases, the command LINEFITD %% fits all the peaks, retaining 
the current line-shape of each peaks.
All the values in the peak-table will be used, but only the line 
with the selected parameters will be adjusted. Unknown line shapes 
will be assumed to be Lorentzian.

see also : GET LINEFIT PK->DT pkadjust SHOW

 
 list 
 
 

 This macro outputs all the important parameters

 Replaces the built-in command list.

 

see also : dataset listd size

 
 listd 
 
 

 List the first values of the data buffer
 Replaces the previous built-in LISTD

 

see also : list

 
 LISTFILEC 
 
 

Lists to the user the name of the currently connected file with the 
JOIN command

see also : dataset DISJOIN JOIN

 
 LOG 
 
 

	The LOG file is a text file journaling all the actions performed 
during the session in the GIFA program. This file is called 
gifa.log. When exiting the program, you are asked whether you want 
to keep this file for latter use.

see also : CONNECT DISCONNECT

 
 LOGA 
 
 

LOGA n 	with n>=1
Controls the way the levels are computed in the Contour Plot graphic 
mode.
If LOGA = 1, then the lowest level is ABSMAX/(SCALE*LEVEL), and all 
the levels above are equidistant with the same quantity.
If LOGA >1, the lowest level is the same, but each level is computed 
from the previous one : L(i+1) = L(i)*LOGA; in a exponential manner. 
For instance, LOGA = 2 corresponds to the standard BRUKER output.

see also : CDISP2D PLOT

 
 ls 
 
 

as in unix

 

see also : CD more pwd rm SH vi vim vip

 
 lshift 
 
 

 lshift n_points

 makes a left shift of the data

 

see also : CHSIZE EXTRACT rshift