Fungsi terbina dalam_Analisis silang dan arahan

Fungsi terbina dalam_Cross Analysis & Arahan

Fungsi _Cross dalam lajur fungsi global dokumentasi API digunakan untuk mengira status silang dua garis penunjuk

• Kod seperti berikut dilaksanakan oleh fungsi:

  Perlu diperhatikan bahawa apabilaarr1ditakrifkan sebagai satu susunan penunjuk garisan pantas, danarr2ditakrifkan sebagai satu susunan penunjuk garis perlahan, nilai yang dikembalikan oleh_Crossfungsi adalah nombor positif, iaitu, mengikut konteks dokumentasia positive number is the upswing period, a negative number indicates the downswing period, and 0 means it is the same as the current price... dapat dilihat bahawa pada masa ini,arr1telah melintasiarr2untuk n kitaran, iaitu barisan cepat melintasi barisan perlahan, menunjukkan salib emas. Begitu juga, jika_CrossFungsi mengembalikan nombor negatif, ia bermakna salib kematian.

  Jika ``arr1is defined as an array of slow line indicators, andarr2as an array of fast line indicators, the situation will be opposite. If the value returned by the_Silangfunction is a positive number, it means death cross. If the value returned by theFungsi _Cross ` ` adalah nombor negatif, ia bermaksud salib emas.

// Return the number of upswing periods; a positive number represents the number of upswing periods, and a negative number represents the number of downswing periods, and 0 means it is the same as the current price  
$.Cross = function(arr1, arr2) {            // The number of parameters is 2. As you can see from the parameter names, these two parameters should be of array type. 
                                            // The array is like a line segment in the coordinate system where the X axis is the array index value and the Y axis is the index value. The function is to determine the intersection of two lines
    if (arr1.length !== arr2.length) {      // First, judge whether the lengths of the two compared arrays are equal 
        throw "array length not equal";     // If they are not equal, raise an error, for the unequal indicator lines cannot judge if crossed or not 
    }
    var n = 0;                              // Declare the variable n to record the cross-status; its initial value is 0, indicating not crossed
    for (var i = arr1.length-1; i >= 0; i--) {      // Traverse arr1，from the last element to the front 
        if (typeof(arr1[i]) !== 'number' || typeof(arr2[i]) !== 'number') { // when arr1 or arr2 is non-numeric type (namely invalid indicators), break the traversing loop 
            break;                                  // break the loop 
        }
        if (arr1[i] < arr2[i]) {                    // If arr1 < arr2, the n-- will record the comparative status of arr1 and arr2 from the beginning (that is, at the beginning, n will adjust automatically according to the comparative value of arr1[i] and arr2[i]; once the comparison relation between arr1[i] and arr2[i] opposite to n happens, it means the two lines crossed). 
            if (n > 0) {
                break;
            }
            n--;
        } else if (arr1[i] > arr2[i]) {             // If arr1 > arr2, then n++
            if (n < 0) {
                break;
            }
            n++;
        } else {                                    // arr1[i] == arr2[i], then break immediately 
            break;
        }
    }
    return n;                                       // Return n, indicating the number of periods with cross, 0 means equal indicator values
};

• Kami mensimulasikan pelbagai data dan menghantarnya untuk melihat hasilnya

var arr1 = [1,2,3,4,5,6,8,8,9]     // Fast line indicator
var arr2 = [2,3,4,5,6,7,7,7,7]     // Slow line indicator
function main(){
    Log("_Cross(arr1, arr2) : ", _Cross(arr1, arr2))
    Log("_Cross(arr2, arr1) : ", _Cross(arr2, arr1))
}

Anda boleh lihat hasilnya ialah 3 dan -3.

Lokasi silang adalah di hadapan tiga bar K-garis.