| 23 |
|
][ |
| 24 |
|
.B "\-o format" |
| 25 |
|
][ |
| 26 |
+ |
.B "\-in M" |
| 27 |
+ |
][ |
| 28 |
+ |
.B "\-on M" |
| 29 |
+ |
][ |
| 30 |
|
.B "\-f source" |
| 31 |
|
][ |
| 32 |
|
.B "\-e expr" |
| 96 |
|
effectively substitute information in the middle of a file |
| 97 |
|
or stream without affecting the rest of the data. |
| 98 |
|
.PP |
| 99 |
+ |
If a |
| 100 |
+ |
.I \-in |
| 101 |
+ |
option is given with a positive integer argument, |
| 102 |
+ |
.I rcalc |
| 103 |
+ |
will stop processing input once it has loaded this number of records. |
| 104 |
+ |
Similarly, if a |
| 105 |
+ |
.I \-on |
| 106 |
+ |
option is present, |
| 107 |
+ |
.I rcalc |
| 108 |
+ |
will stop after producing this many records, which may be a smaller |
| 109 |
+ |
number if the |
| 110 |
+ |
.I cond |
| 111 |
+ |
variable is used. |
| 112 |
+ |
If multiple input files are given, these counts are continuous over |
| 113 |
+ |
the input and do not reset on each file. |
| 114 |
+ |
.PP |
| 115 |
|
The variable and function definitions in each |
| 116 |
|
.I \-f source |
| 117 |
< |
file are read and compiled. |
| 117 |
> |
file are read and compiled from the RADIANCE library where it is found. |
| 118 |
|
The |
| 119 |
|
.I \-e expr |
| 120 |
|
option can be used to define variables on the command line. |
| 255 |
|
This provides a convenient method for avoiding inappropriate calculations. |
| 256 |
|
The following library of pre-defined functions and variables is provided: |
| 257 |
|
.TP 10n |
| 258 |
< |
.BR \$N |
| 258 |
> |
.BR $N |
| 259 |
|
Return the value for input column |
| 260 |
|
.I N. |
| 261 |
|
If an input format is given, using a channel number generates an error. |
| 285 |
|
.BR "rand(x)" |
| 286 |
|
compute a random number between 0 and 1 based on x. |
| 287 |
|
.TP |
| 288 |
+ |
.BR "min(a1, a2, ..)" |
| 289 |
+ |
return the minimum value from a list of arguments. |
| 290 |
+ |
.TP |
| 291 |
+ |
.BR "max(a1, a2, ..)" |
| 292 |
+ |
return the maximum value from a list of arguments. |
| 293 |
+ |
.TP |
| 294 |
|
.BR "floor(x)" |
| 295 |
|
return largest integer not greater than x. |
| 296 |
|
.TP |
| 331 |
|
and column one times column three in column two: |
| 332 |
|
.IP "" .2i |
| 333 |
|
rcalc \-e '$1=sqrt($2);$2=$1*$3' inputfile > outputfile |
| 334 |
+ |
.SH ENVIRONMENT |
| 335 |
+ |
RAYPATH the directories to check for auxiliary files. |
| 336 |
|
.SH AUTHOR |
| 337 |
|
Greg Ward |
| 338 |
|
.SH BUGS |
| 342 |
|
.PP |
| 343 |
|
Tabs count as single spaces inside fields. |
| 344 |
|
.SH "SEE ALSO" |
| 345 |
< |
cnt(1), ev(1), getinfo(1), icalc(1), rlam(1), tabfunc(1), total(1) |
| 345 |
> |
cnt(1), ev(1), getinfo(1), icalc(1), rcollate(1), rlam(1), tabfunc(1), total(1) |
