Multi Dymension array..how to

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I know how to place info into a single dymension array

CalculationResult = Result of some function or forumla for each bar in chart.

double Data[];

Start loop i

Data[i] = CalculationResult

end loop i

But if I wish to store two pieces of information in the array, like Date and 'CalculationResult' for the bars on chart. How is that done.
- I dont know what size the array would be as chart bars number can change.
- Can MT4 Multi arrays store two or more data types like Date and Double ( Are the structures for this variable ??)
- I need to add data and be able to get data out..

So how does a loop look on a multi dymension array anyways !

I found this from zolero : 'Getting prices from another symbol?'

double array[x][6];
x- length of data or number of Bars
the second dimension is information about Time, Open, Close, High, Low, Volume

Q: So how does the loop look like, as an example ?

[Iggy]

I don't get it, All this information is already available in predefined arrays.

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irusoh1 wrote:
I don't get it, All this information is already available in predefined arrays.

I have amended my request...my data is not predefined.

If I wish to store DATE, CALCULATIONRESULT in a two dimension array, so how is that done ??

[Iggy]

there no structures in mql4

so, the easiest just to create as many arryas as necessary and refer to them with single index to retrieve values.

datetime DATE[10];
double CALCRES[10];

thisdate=DATE[3];
thisres=CALCRES[3];

something like that.

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irusoh1 wrote:
there no structures in mql4

so, the easiest just to create as many arryas as necessary and refer to them with single index to retrieve values.

datetime DATE[10];
double CALCRES[10];

thisdate=DATE[3];
thisres=CALCRES[3];

something like that.

That is not good for sorting...

[Iggy]

and why not... you know they say that bad dancer has got his legs in the way. Anyway it's a russian saying.

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irusoh1 wrote:
and why not... you know they say that bad dancer has got his legs in the way. Anyway it's a russian saying.

WHY cant I get a straight amswer....

I just want a example of using a two dimension array, with two data types like double and string.

TO see looping, and assigning values into array...

Jes wayne ...

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array double[][2];
ArrayResize(array, 10); //10 or whatever (like number of bars).
ArrayInitialize(array, 0);
for(int i = 0; i < 10; i++)
{
array[i][0] = /*date time */;
array[i][1] = /*double calc */;
}

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Craig:
array double[][2];
ArrayResize(array, 10); //10 or whatever (like number of bars).
ArrayInitialize(array, 0);
for(int i = 0; i < 10; i++)
{
array[i][0] = /*date time */;
array[i][1] = /*double calc */;
}

Thanks...

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icm63:

Craig:
array double[][2];
ArrayResize(array, 10); //10 or whatever (like number of bars).
ArrayInitialize(array, 0);
for(int i = 0; i < 10; i++)
{
array[i][0] = /*date time */;
array[i][1] = /*double calc */;
}

Thanks...

"ArraySort" function shorts array of one dimenson, ....so how do I sort the above array on the array[i][1] data..DESCENDING

array double[][2];

should be

double array [][2];

etc

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ArraySort sorts an array of any dimension by the the first dimension.