trader_cci
(PECL trader >= 0.2.0)
trader_cci — Commodity Channel Index
说明
trader_cci(
array
array
array
int
): array
array
$high,array
$low,array
$close,int
$timePeriod = ?): array
参数
-
high -
高价，浮点数数组。
-
low -
低价，浮点数数组。
-
close -
收盘价，浮点数数组。
-
timePeriod -
Number of period. Valid range from 2 to 100000.
返回值
Returns an array with calculated data or false on failure.
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User Contributed Notes 1 note
geekgirl dot joy at gmail dot com ¶
1 year ago
<?php
// The CCI (Commodity Channel Index) is an oscillator that
// relies on historical price momentum to determine if it is "overbought" or "oversold".
// When greater than zero the price is "above" the historic average.
// When less than zero the price is "below" the historic average.
// Investopedia claims:
// "The CCI is an unbounded oscillator, meaning it can go higher or lower indefinitely. For this reason, overbought and oversold levels are typically determined for each individual asset by looking at historical extreme CCI levels where the price reversed from."
$highs = array(118.99, 119.14, 120.5, 115.23, 115.93, 118.829, 116, 112.2, 110.88, 110.19, 112.86, 112.11, 110.25, 112.44);
$lows = array(112.68, 115.26, 112.5, 110, 112.8, 113.61, 112.04, 108.71, 106.09, 103.1, 109.16, 106.77, 105, 107.67);
$closes = array(112.82, 117.32, 113.49, 112, 115.355, 115.54, 112.13, 110.34, 106.84, 110.08, 111.81, 107.12, 108.22, 112.28);
$time_period = 7;
var_dump(trader_cci ($highs, $lows, $closes, $time_period));
/*
array(8) {
[6]=>
float(-83.234)
[7]=>
float(-137.329)
[8]=>
float(-145.78)
[9]=>
float(-101.047)
[10]=>
float(-9.331)
[11]=>
float(-59.339)
[12]=>
float(-66.964)
[13]=>
float(76.143)
}
*/