# Difference between revisions of "LlListStatistics"

 LSL Portal

## Contents

Function: float llListStatistics( integer operation, list src );
 315 Function ID 0 Forced Delay 10 Energy

Returns a float that is the result of performing statistical aggregate function operation on src.

 • integer operation – a LIST_STAT_* flag • list src

If a list entry type is not a float or an integer it is silently ignored.

Constant Description
LIST_STAT_RANGE 0 Returns the range.
LIST_STAT_MIN 1 Retrieves the smallest number.
LIST_STAT_MAX 2 Retrieves the largest number.
LIST_STAT_MEAN 3 Retrieves the mean (average).
LIST_STAT_MEDIAN 4 Retrieves the median number.
LIST_STAT_STD_DEV 5 Calculates the standard deviation.
LIST_STAT_SUM 6 Calculates the sum.
LIST_STAT_SUM_SQUARES 7 Calculates the sum of the squares.
LIST_STAT_NUM_COUNT 8 Retrieves the number of float and integer elements.
LIST_STAT_GEOMETRIC_MEAN 9 Calculates the geometric mean.

## Examples

<lsl>// shows just how bad SL is behaving and demonstrates the use of llListStatistics() list dil_s; list fps_s;

default {

```   state_entry()
{
dil_s = fps_s = [];
llSetTimerEvent(1.0);
}

on_rez (integer parm)
{
llResetScript();
}

timer()
{
dil_s = llList2List(dil_s + llGetRegionTimeDilation(), -60, -1);
fps_s = llList2List(fps_s + llGetRegionFPS(), -60, -1);
if(llGetListLength(dil_s) > 3)
{
llSetText(
"Dilation: min="+(string) llListStatistics(LIST_STAT_MIN, dil_s) + ", mean=" +
(string) llListStatistics(LIST_STAT_MEAN, dil_s) + ", max=" +
(string) llListStatistics(LIST_STAT_MAX, dil_s) + ", std.dev=" +
(string) llListStatistics(LIST_STAT_STD_DEV, dil_s) + "\n" +
"FPS: min="+(string) llListStatistics(LIST_STAT_MIN, fps_s) + ", mean=" +
(string) llListStatistics(LIST_STAT_MEAN, fps_s) + ", max=" +
(string) llListStatistics(LIST_STAT_MAX, fps_s) + ", std.dev=" +
(string) llListStatistics(LIST_STAT_STD_DEV, fps_s),
<1.0, 1.0, 0.0>, //yellow
1.0);
}
}

changed(integer change)
{
if(change & CHANGED_REGION)
{
llResetScript();
}
}
```
}</lsl>

```function float llListStatistics( integer operation, list src );