levels

PURPOSE

SYNOPSIS

DESCRIPTION

 LEVELS Calculates discrete levels given the parameter matrix.
 
   CALL: ui = levels(param);
 
         ui    = the discrete levels.
         param = the parameter matrix = [u_min u_max num_levels].
  Example:% 
 
  param=[2 3.2 4]; levels(param)

CROSS-REFERENCE INFORMATION

linspace

Linearly spaced vector.

cav76pdf	Cavanie et al. (1976) approximation of the density (Tc,Ac)
cc2cmat	Calculates the cycle count matrix from a cycle count.
cdf2tr	Estimate transformation, g, from observed CDF.
Chapter4	% CHAPTER4 contains the commands used in Chapter 4 of the tutorial
cmat2amp	Calculates a histogram of amplitudes from a cycle matrix.
cmat2dmat	Computes the (Palmgren-Miner) damage matrix from a cycle matrix.
cmat2extralc	Extrapolate level crossing spectrum
cmat2lc	Calculates the level crossings from a cycle matrix.
cocc	Plots cycles as points together with isolines of a cycle matrix.
dat2dtp	The sequence of discretized turning points from a signal.
dat2rfm	Calculates the rainflow matrix from a time signal.
dat2tr	Estimate transformation, g, from data.
itmkurs_lab2	Script to computer exercises 2
itmkurs_lab3	Script to computer exercises 3
itmkurs_lab4	Script to computer exercises 4
lc2tr	Estimate transformation, g, from observed crossing intensity.
lc2tr2	Estimate transformation, g, from observed crossing intensity, version2.
lh83pdf	Longuet-Higgins (1983) approximation of the density (Tc,Ac)
load2ud	Calculates the number of up/downcrossings of a load.
mc2rfc	Calculates a rainflow matrix given a Markov chain with kernel f_xy;
mctp2tc	Frequencies of upcrossing troughs and crests using Markov chain of turning points.
mktestmat	Makes test matrices for min-max (and max-min) matrices.
nt2lc	Calculates the level crossings from a cycle matrix.
rfcdemo1	Demo for switching AR(1)-processes.
rfcdemo2	Rainflow matrix for Switching Markov Chains of Turning Points.
rfmextrapolate	Extrapolates a rainflow matrix.
scalemat	Scale and translate a cycle matrix.
spec2AcAt	Evaluates survival function R(h1,h2)=P(Ac>h1,At>h2).
spec2Acdf	Evaluates cdf of crests P(Ac<=h) or troughs P(At<=h).
spec2cmat	Joint intensity matrix for cycles (max,min)-, rainflow- and (crest,trough)
spec2mmtpdf	Calculates joint density of Maximum, minimum and period.
spec2tccpdf	Evaluates densities of wave period Tcc, wave lenght Lcc.
spec2thpdf	Joint density of amplitude and period/wave-length characteristics
spec2tpdf	Evaluates densities for crest-,trough-period, length.
spec2tpdf2	Evaluates densities for various wave periods or wave lengths
test_cycles	Quick test of the routines in module 'cycles'
test_markov	Quick test of the routines in module 'markov'

SOURCE CODE

01 function l=levels(param)
02 %LEVELS Calculates discrete levels given the parameter matrix.
03 %
04 %  CALL: ui = levels(param);
05 %
06 %        ui    = the discrete levels.
07 %        param = the parameter matrix = [u_min u_max num_levels].
08 % Example:% 
09 %
10 % param=[2 3.2 4]; levels(param)
11 
12 l=linspace(param(1),param(2),param(3));
13

Comments or corrections to the WAFO group