Home    Search    Reference Manuals    Return    Track Group Documentation

Users Manual for Program TRC_CDF

Table of Contents

Introduction

Program trc_cdf evaluates PDF(probability density function) and CDF (cumulative distribution function) for tracks stored in trac-, trax- or trax_wdesign-format.

Input data

Input data is read in free format, valid separators between the input values are <space>, <comma>, <tab>, <equal sign> or <carriage return>. The commands can be written both in lower and upper case letters. The operation of the program is controlled by the commands described below; some of the commands also need arguments.

INFIL

Track data file.

Declared= Character*132    Default= Blank

L_INTERVAL

Length of track sections for which evaluation of standard deviation numbers will take place.

Declared= Real*8    Default= 200 [m]

CDF_FILE

Cumulative Distribution and Frequency Distribution of the track.
The file is written as an m-file and can be executed in program Octave.

Declared= Character*132    Default= Blank (I.e. no file will be written)

XSTART_KM

Starting kilometer when analyzing the track irregularity file.

Declared= Integer*4    Default= -1000000000 [km]

XSTART_M

Starting meter in XSTART_KM when analyzing the track irregularity file.

Declared= Integer*4    Default= -1000 [m]

XSTOP_KM

End kilometer when analyzing the track irregularity file.

Declared= Integer*4    Default= 1000000000 [km]

XSTOP_M

End meter in XSTOP_KM when analyzing the track irregularity file.

Declared= Integer*4    Default= 1000 [m]

Example of an input data file

Following example: Master.trc_cdff can be used as a master file:

##
##      Input data for program trc_cdf 
##

 L_INTERVAL= 200        # For speeds lower than  140 km/h

 XSTART_KM=   0         XSTART_M= 0
 XSTOP_KM = 1000000000  XSTOP_M = 0

 INFIL= K2_4a25-g-k.trac
 CDF_FILE= K2_4a25-g-k.trc_cdfr

Output results: