Re: [amibroker] How to get a number from an array

Coolman 18.21

lastvalue(close) also returns a number. This is another way of doing the same thing. Either way will work with looping.

AFL Function Reference - LASTVALUE

LastValue
- last value of the array

Trading system toolbox

SYNTAX	LastValue(ARRAY, lastmode = True )
RETURNS	NUMBER

On 2/24/2016 8:09 PM, 'TA' tagroups@sbcglobal.net [amibroker] wrote:

Alan,

What you are doing is equivalent to using lastvalue(close). Converting to string and converting back number more costly.

From: amibroker@yahoogroups.com [mailto:amibroker@yahoogroups.com]
Sent: Wednesday, February 24, 2016 5:52 PM
To: amibroker@yahoogroups.com
Subject: Re: [amibroker] How to get a number from an array

The horizontal line is a number not an array. StrToNum returns a Number.

On 2/24/2016 7:40 PM, 'TA' tagroups@sbcglobal.net [amibroker] wrote:

I had already done that. I get a horizontal line at the last value of close.

As far as I know in AB there are now arrays of strings.

From: amibroker@yahoogroups.c om [mailto:amibroker@yahoogroups.com]
Sent: Wednesday, February 24, 2016 5:36 PM
To: amibroker@yahoogroups.com
Subject: Re: [amibroker] How to get a number from an array

Try this and see what you get: Plot(StrToNum(NumToStr(close)),"",colorblack);

StrToNum
- convert string to number

String manipulation
(AFL 2.5)

SYNTAX

StrToNum( string )

RETURNS

NUMBER

FUNCTION

Converts string to number.

On 2/24/2016 1:45 PM, 'TA' tagroups@sbcglobal.net [amibroker] wrote:

Alan, I think your wrong.

EntryBar is an array.

NumToStr(EntryBar) converts the last value of the array to a string.

StrToNum(NumToStr(EntryBar)) recreates an array of last value of EntryBar array.

From: amibroker@yahoogroups.com [mailto:amibroker@yahoogroups.com]
Sent: Wednesday, February 24, 2016 11:29 AM
To: amibroker@yahoogroups.com
Subject: Re: [amibroker] How to get a number from an array

This is one way to change an array to a number:
Bar = StrToN um(NumToStr(EntryBar));

On 2/22/2016 11:50 AM, gamacc@aruba.it [amibroker] wrote:

Hello there,

in order to obtain the highest peak value of the bars after the entry bar I've written this code:

Buy = IIf(<entry condition>,True, 0);

EntryBar = IIf(<entry condition>,BarIndex(),0);

for( i = EntryBar; i < BarCount; i++ )
{
PeakValue = HHV(H,(Bar - i);
....
}

This code doesn't work; the AFL reports the error nr. 6 : "Condition in IF, WHILE, FOR statement must numeric or boolean type; you cannot use array here...".

How can I change the variable EntryBar from an array into a number? I've tried "Bar = EntryBar" but it's the sa me thing.

Thanks to anyone have an answer.

Regards

__._,_.___

Posted by: Alan <alan@thenorthams.us>

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