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Thanks a lot, but...
When we tell
AddColumn(H,"H",1.4);
AddColumn (L,"L",1.4);
AddColumn (mp,"mp",1.4);
to Amibroker, the answers are correct. (The right column below)
However, when we don't tell that way, rounding still seems to be incorrect.
We should format first and then round with excel...
I'll appreciate any additional comments.
| Ticker |
Date/Time |
H |
L |
with excel: |
mp |
|
Ticker |
Date/Time |
H |
L |
mp |
| YKBNK |
10.03.2009 |
1.55 |
1.5 |
1.525 |
1.52 |
|
YKBNK |
10.03.2009 |
1.5500 |
1.5000 |
1.5250 |
| YKBNK |
11.03.2009 |
1.56 |
1.51 |
1.535 |
1.53 |
|
YKBNK |
11.03.2009 |
1.5600 |
1.5100 |
1.5350 |
On Sat, Mar 14, 2009 at 2:49 AM, Tomasz Janeczko <groups@xxxxxxxxxxxxx> wrote:
Rounding is correct and user-definable. If you want 3 decimal digits - just tell AB this way:
AddColumn(mp,"mp", 1.3 );
----- Original Message -----
Sent: Friday, March 13, 2009 9:35 PM
Subject: [amibroker] Incorrect rounding in Amibroker
Dear friends,
Amibroker seems to be rounding the results different than it should be. Below is a piece of the results.
The prices have two digits after dot. (h+l)/2 sometimes has 2 digits, sometimes 3 after dot.
Amibroker sometimes rounds the result up, sometimes down.
|
| Ticker |
Date/Time |
H |
L |
(h+l)/2
Excel Calc. |
(h+l)/2
Amibroker Calc. |
| YKBNK |
23.02.2009 |
1.67 |
1.63 |
1.65 |
1.65 |
| YKBNK |
24.02.2009 |
1.64 |
1.58 |
1.61 |
1.61 |
| YKBNK |
25.02.2009 |
1.69 |
1.65 |
1.67 |
1.67 |
| YKBNK |
26.02.2009 |
1.70 |
1.65 |
1.675 |
1.67 |
| YKBNK |
27.02.2009 |
1.66 |
1.61 |
1.635 |
1.63 |
| YKBNK |
02.03.2009 |
1.63 |
1.58 |
1.605 |
1.61 |
| YKBNK |
03.03.2009 |
1.62 |
1.59 |
1.605 |
1.61 |
| YKBNK |
04.03.2009 |
1.64 |
1.60 |
1.62 |
1.62 |
| YKBNK |
05.03.2009 |
1.62 |
1.53 |
1.575 |
1.58 |
| YKBNK |
06.03.2009 |
1.57 |
1.52 |
1.545 |
1.55 |
| YKBNK |
09.03.2009 |
1.59 |
1.49 |
1.54 |
1.54 |
| YKBNK |
10.03.2009 |
1.55 |
1.50 |
1.525 |
1.52 |
| YKBNK |
11.03.2009 |
1.56 |
1.51 |
1.535 |
1.53 |
| YKBNK |
12.03.2009 |
1.55 |
1.46 |
1.505 |
1.5 |
| YKBNK |
13.03.2009 |
1.60 |
1.54 |
1.57 |
1.57 |
I may also send you the complete data if needed. You may also see easily with your own data with the following code:
MP= (H+L)/2;
Filter=1;
AddColumn (H,"H");
AddColumn (L,"L");
AddColumn (mp,"mp");
Thanks in advance for your help.
Ilhan
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