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.\" RCSid "$Id" |
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.\" RCSid "$Id$" |
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.TH TOTAL 1 2/3/95 RADIANCE |
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.SH NAME |
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total - sum up columns |
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| |
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.B \-l |
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][ |
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.B \-i{f|d}[N] |
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][ |
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.B \-o{f|d} |
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][ |
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.B "\-in M" |
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][ |
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.B "\-on M" |
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][ |
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.B \-tC |
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][ |
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.B \-N |
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(A logarithmic sum of absolute values is used to avoid overflow, and |
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zero values are silently ignored.) |
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.PP |
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If the input data is binary, the |
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.I \-id |
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or |
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.I \-if |
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option may be given for 64-bit double or 32-bit float values, respectively. |
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Either option may be followed immediately by an optional |
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count, which defaults to 1, indicating the number of double or float |
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binary values to read per record on the input file. |
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(There can be no space between the option and this count.)\0 |
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Similarly, the |
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.I \-od |
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and |
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.I \-of |
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options specify binary double or float output, respectively. |
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These options do not need a count, as this will be determined by the |
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number of input channels. |
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.PP |
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A count can be given as the number of lines to read before |
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computing a result. |
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By default, |
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Normally, |
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.I total |
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reads each file to its end before producing its result, but the |
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reads each file to its end before producing its result, |
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but this behavior may be overridden by inserting blank lines in |
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the input. |
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For each blank input line, total produces a result as if the |
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end-of-file had been reached. |
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If two blank lines immediately follow each other, total closes |
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the file and proceeds to the next one (after reporting the result). |
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The |
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.I \-N |
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option (where N is a decimal integer) tells |
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.I total |
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In addition, the |
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.I \-r |
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option can be specified to override reinitialization and thus |
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give a running total every N lines. |
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give a running total every N lines (or every blank line). |
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If the end of file is reached, the current total is printed |
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and the calculation is reset before the next file (with or without the |
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.I \-r |
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option). |
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.PP |
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The |
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.I \-in |
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option if present, will limit the number of input records read |
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(per input file). |
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The |
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.I \-on |
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option may be used to limit the total number of outut records produced. |
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.PP |
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The |
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.I \-tC |
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option can be used to specify the input and output tab character. |
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The default tab character is TAB. |
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.SH EXAMPLE |
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To compute the RMS value of colon-separated columns in a file: |
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.IP "" .2i |
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total -t: -m -s2 input |
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total \-t: \-m \-s2 input |
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.PP |
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To produce a running product of values from a file: |
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.IP "" .2i |
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total -p -1 -r input |
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total \-p \-1 \-r input |
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.SH BUGS |
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If the input files have varying numbers of columns, mean values |
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will certainly be off. |
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.SH AUTHOR |
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Greg Ward |
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.SH "SEE ALSO" |
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cnt(1), lam(1), neat(1), rcalc(1), tabfunc(1) |
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cnt(1), neaten(1), rcalc(1), rcollate(1), rlam(1), tabfunc(1) |
