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Bonaparta 
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Joined: 03 Nov 2011
Location: Milky Way
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Points: 541
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 Topic: Candles and Supply & Demand
Posted: 29 Aug 2012 at 21:06 |
Greetings
Can anyone please help me explain those new faction market history features - candles and Supply & Demand. Sample pictures are below.
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bansisdead
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Joined: 08 Jan 2012
Location: UK
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Points: 609
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Posted: 29 Aug 2012 at 21:39 |
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***mod edit to remove off topic quoted text***
A tutorial on what these graphs mean might help. The second graph the green is supply maybe the red is demand? oh its buy/sell, silly me.
Edited by GM Luna - 29 Aug 2012 at 22:06
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The_Dude
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Joined: 06 Apr 2010
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Posted: 29 Aug 2012 at 22:57 |
I do not understand these charts either. Also, the dates are not always sequenced correctly as you can see in the screenshot posted by Bona.
What is the difference between Pink and Blue bars in Candles? The bars have a fat section and a skinny section - what are each of these sections of bars showing? Or those Buy Orders placed? Sell Orders placed? Or consummated trades? The squished chart at the bottom of Candles ... this looks like a reiteration of the top chart only compressed. Is that correct? If so, how does it used differently than the top chart?
Supply/Demand - is this posted trade orders? Or is this consummated trades? Same query re: squished chart at bottom.
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Rill
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Posted: 29 Aug 2012 at 23:10 |
On the candles graph, the bar shows the difference between the price at the beginning of the day and the price at the close of the day. The bar is blue if the closing price is greater than the starting price and red if the end price is lower than the start price. Note that one "end" of each day's bar is aligned with an end of the bar from the previous day and the other end of the bar is aligned with an end of the bar from the next day.
I am less sure about the supply and demand graph, but I think the green bar represents sell orders and the red bar represents buy orders; if there were both buy and sell orders on the same day, then both bars would appear; the purple line represents the difference between the quantity placed for sale and the quantity ordered to buy ... possibly. However, in this case it seems like the graph is upside down since more buy orders should mean more demand which should result in a climbing graph.
I think the skinny section at the bottom is intended to be a longer-term graph, but there aren't long-term data yet. Just a guess.
Edited by Rill - 29 Aug 2012 at 23:12
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Rill
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Posted: 29 Aug 2012 at 23:14 |
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And if you're thinking "gee, these graphs aren't particularly useful", then given the limited time period and the extremely low volume of trades, I agree. But they might be useful in the future if volume picks up.
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The_Dude
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Posted: 30 Aug 2012 at 00:09 |
 Rill wrote:
On the candles graph, the bar shows the difference between the price at the beginning of the day and the price at the close of the day. The bar is blue if the closing price is greater than the starting price and red if the end price is lower than the start price. Note that one "end" of each day's bar is aligned with an end of the bar from the previous day and the other end of the bar is aligned with an end of the bar from the next day. |
Ahhh... Ok, now I see what is going with the fat bars on the Candles. Is the skinny blue/pink line telling us something? If so, what?
And the "price" data - posted offers? Or completed trades?
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Rill
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Posted: 30 Aug 2012 at 01:17 |
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I would guess the skinny line is the intraday highs and lows (highest price of the day and lowest price of the day). The old market graph was based on completed offers, but I'm not sure about the new one.
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Hadus
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Posted: 30 Aug 2012 at 02:16 |
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I believe the skinny line represents the maximum and minimum prices, as Rill said. Not sure whether the graphs are based on completed or offered sales.
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Salararius
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Joined: 26 Sep 2011
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Posted: 30 Aug 2012 at 04:25 |
Candle Graph: The fat line represents the range of the open and close prices. The color represents the direction. The thin line represents the intraday high and low transaction price. All values would be based on completed sales as otherwise there is no agreed upon price.
Supply and Demand: I couldn't find a great source on this one. I'm pretty sure that when you click on buy (you are buying from an existing sell offer) the volume of the transaction shows up in red. When you click on sell (you are selling to an existing buy offer) the volume of the transaction shows up in green. Thus, with a glance you can see if people are buying from the sellers side of the ledger or selling to the buyers side of the ledger. It's not possible to look at the average price and know that because you can't determine what sort of transactions were posted and accepted while you were not looking. This let's you figure out where the demand is. Are there buyers lurking for when the price is low enough or are there sellers lurking for when the price is high enough?
I don't think the candle chart is very helpful for very low volume markets. I don't think either chart is helpful when people make buy/sell decisions based on non-market factors like who is in what alliance. I take both with a bit of skepticism.
The skinny section at the bottom let's you zoom in on a time frame (horizontal axis) in the top graph. Click and drag horizontally on the "skinny graph", try it, it works. The problem IMO is that the vertical scale on the top graph doesn't change to the zoomed section. That makes it difficult to determine price even if you zoom in on the relevant dates.
Edited by Salararius - 30 Aug 2012 at 04:28
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The_Dude
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Posted: 30 Aug 2012 at 05:36 |
Salararius wrote:
Candle Graph: The fat line represents the range of the open and close prices. The color represents the direction. The thin line represents the intraday high and low transaction price. All values would be based on completed sales as otherwise there is no agreed upon price.
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Awesome Dude! 
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Candles and Supply & Demand
