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Price History Graphs
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ArchAngel Alyx
Perkone
Caldari State
#1 - 2012-06-18 20:59:27 UTC
Hi esteemed market goers, I'm looking for a little help understanding the price history graphs please? Smile My spidey sense is tingling which suggest there is lots of useful info here, but atm it's like a alien language lol Lol

I usually set the time to 3 months to check changes in price (red line right? :P ). And I get the units sold part at the bottom, so I can tell what's shifting and what's not.

The rest though is a mystery. Anyone able to give me some tips for reading the graphs correctly? Thanks!

p.s - market noob if you couldn't already tell Oops
Fiat Money
EVE Sky Corp
#2 - 2012-06-18 21:18:57 UTC
green line - Moving Avg. (20 days) - long term trend
red line - Moving Avg. (5 days) - medium term trend
yellow dots - Median Day Price - daily price
Donchian Channel - extremum values (min / max) the price moved the last 5 days

There's a lot of stuff to learn by googling the topics...
Litair
Nleesh
#3 - 2012-06-18 23:03:17 UTC
And those little bars at the bottom are trades that day.
Thoraemond
Far Ranger
#4 - 2012-06-18 23:31:39 UTC
Some further, related questions and answers are also available in the Market Discussions FAQ.

• Graph re Market Order Broker Fees (Updated 2016-04-28) • Diagram re Skills for Remote Trading •
Anya Ohaya
School of Applied Knowledge
Caldari State
#5 - 2012-06-19 00:56:35 UTC
The moving averages are all un-centered and will be out of phase with actual turning points.
Vaerah Vahrokha
Vahrokh Consulting
#6 - 2012-06-19 04:13:51 UTC
Anya Ohaya wrote:
The moving averages are all un-centered and will be out of phase with actual turning points.


Actually they are not "un-centered" but for their very nature of being calculated on 5 to 20 previous prices average, they are called "laggy indicators". They show a situation in the past, in the hope it stays like that in the next future (often a wrong assumption).

EvE Online portal | EvE markets tutorials
Vaerah Vahrokha
Vahrokh Consulting
#7 - 2012-06-19 04:14:47 UTC
ArchAngel Alyx wrote:
Hi esteemed market goers, I'm looking for a little help understanding the price history graphs please? Smile My spidey sense is tingling which suggest there is lots of useful info here, but atm it's like a alien language lol Lol

I usually set the time to 3 months to check changes in price (red line right? :P ). And I get the units sold part at the bottom, so I can tell what's shifting and what's not.

The rest though is a mystery. Anyone able to give me some tips for reading the graphs correctly? Thanks!



I am slowly preparing some articles exactly about those graphs. They should be out in the coming days.

EvE Online portal | EvE markets tutorials
ArchAngel Alyx
Perkone
Caldari State
#8 - 2012-06-19 08:34:10 UTC
Thanks for the replys. I'll check out the FAQ, and looking forward to your articles Vaerah Smile
Johnny Frecko
Federal Navy Academy
Gallente Federation
#9 - 2012-06-19 10:26:58 UTC
Also the donchian channel just represents the min/max ORDERS. not the actual transaction min/max.

The transaction min/max of the day can be seen through the thin yellow line.
malaire
#10 - 2012-06-19 10:33:00 UTC
Johnny Frecko wrote:
Also the donchian channel just represents the min/max ORDERS. not the actual transaction min/max.

The transaction min/max of the day can be seen through the thin yellow line.

No, both are from actual transactions.

You can see that easily by comparing yellow lines to donchian channel, whenever there is min/max at yellow line, donchian channel has same min/max for 5 days, unless better one comes before that.

New to EVE? Don't forget to read: The Manual * The Wiki * The Career Options * and everything else
Anya Ohaya
School of Applied Knowledge
Caldari State
#11 - 2012-06-19 10:53:03 UTC
Vaerah Vahrokha wrote:
Anya Ohaya wrote:
The moving averages are all un-centered and will be out of phase with actual turning points.


Actually they are not "un-centered" but for their very nature of being calculated on 5 to 20 previous prices average, they are called "laggy indicators". They show a situation in the past, in the hope it stays like that in the next future (often a wrong assumption).


Being calculated entirely on previous prices means un-centered.

Centered moving averages use future prices as well as past.

And yes, obviously that meas a delay in calculating them, unless you use some method to extrapolate data to get future prices.