Question

我有一个包含这样的数据的文本文件（EURUSD引用）

19710104,000000,0.53690,0.53690,0.53690,0.53690,1
19710105,000000,0.53660,0.53660,0.53660,0.53660,1
19710106,000000,0.53650,0.53650,0.53650,0.53650,1
19710107,000000,0.53680,0.53680,0.53680,0.53680,1
19710108,000000,0.53710,0.53710,0.53710,0.53710,1
19710111,000000,0.53710,0.53710,0.53710,0.53710,1
19710112,000000,0.53710,0.53710,0.53710,0.53710,1

我想将一些数据移动到另一个文件，如

0.53690,0.53690,0.53690,0.53690

并为每一行添加一些不同的计算数字，如（移动平均线和RSI，Stoch ......），因此文件可以通过神经网络训练，最终文件必须是这样的

OPEN, HIGH, LOW, CLOSE, VOL, MA50, MA20, RSI14, StochMain, StochSignal,

所以我需要一些提示

Answer 1

我坚信你应该打开文件，逐行阅读，用'，'将其展开，然后将每一行存储到某种地图，进行一些计算，最后将其保存到另一个文件。

http://php.net/manual/en/function.explode.php How to read a file line by line in php

Answer 2

您应该使用PHP函数fgetcsv和fputcsv。请参阅下面的工作示例，您可以调整以满足您的需求。

它假设您给出的输入值的格式为OPEN，CLOSE，HIGH，LOW，VOL。以与移动平均线相同的方式引入RSI和随机指标等。

<?php

// Prepare variables
$row = 1;
$output = array();

// Attempt to open the file quotes.txt
if (($handle = fopen("quotes.txt", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {

        $row++;

        // This part of the while loop will be hit for each line in the quotes.txt
        // $data is an array that contains the values of this line from the csv
        // $output is a new array that you are generating

        // Create a new sub-array in the output array (add a new line to the main output)
        $output[$row] = array();    

        // Add the third value of the input array to the start of the new array (the opening price)
        $output[$row][] = $data[2];

        // Add the fourth value of the input array to the new array (the closing price)
        $output[$row][] = $data[3];

        // Add the fifth value of the input array to the new array (the high price)
        $output[$row][] = $data[4];

        // Add the sixth value of the input array to the new array (the low price)
        $output[$row][] = $data[5];

        // Add the seventh value of the input array to the new array (the volume)
        $output[$row][] = $data[6];

        // Add moving average to the new array
        $output[$row][] = calculate_ma($output, $row);
    }
    fclose($handle);
}

// Create new file or open existing to save the output to
$handle = fopen('output.csv', 'w');

// Flatten the arrays and save the csv data
foreach ($output as $file) {
    $result = [];
    array_walk_recursive($file, function($item) use (&$result) {
        $result[] = $item;
    });
    fputcsv($handle, $result);
}

/**
* Calculate the value for the MA using the values in $output.
*/
function calculate_ma($output, $row) {

    // For this example we will just say that the MA is equal to the closing price of this period
    // and the previous four periods, divided by 5.
    $ma = $output[$row][1] + $output[$row-1][1] + $output[$row-2][1] + $output[$row-3][1] + $output[$row-4][1];
    $ma = $ma / 5;

    return $ma;
}

?>

使用您在问题中粘贴的相同输入，上述代码的输出将为：

0.53690,0.53690,0.53690,0.53690,1,0.10738
0.53660,0.53660,0.53660,0.53660,1,0.2147
0.53650,0.53650,0.53650,0.53650,1,0.322
0.53680,0.53680,0.53680,0.53680,1,0.42936
0.53710,0.53710,0.53710,0.53710,1,0.53678
0.53710,0.53710,0.53710,0.53710,1,0.53682
0.53710,0.53710,0.53710,0.53710,1,0.53692

请记住，前四个移动平均线是不正确的，因为它们没有5个周期的数据来计算5周期MA。

要在没有大量代码的情况下计算更大的MA（50个周期），请将MA函数替换为：

function calculate_ma($output, $row) {
    $period = 50;

    for ($x = 0 ; $x < $period ; $x++){
        $ma = $ma + $output[$row-$x][1];
    }

    $ma = $ma / $period;

    return $ma;
}

使用TXT文件中的数据

2 个答案: