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Hi Bobbym.
Sorry to quote you as engineer, i am not sure i read that some where that you are chemical engineer .. must have read half asleep.. apologies.
Thanks a ton bobbym,
It's a great help to me.. could i ask you what are things i need to know to come to this all differential equation ? how to learn it .can i start to learn all again now.. the things i learnt are gone!!
So can i understand with these assumption. Please correct me.
In the equation .. y = .010218 x^2 + .579087 x + 4.42272, the constant 4.42272 would determine one of the those peacock paths. If so in my case that would be constant, in my case (could be quality, etc).
Thanks a ton.
Hi Bobbym,
Thank you so much. You are very knowledgeable, you just refreshed to the point i hear the words extrapolation and interpolation. I see immense usages of your help to me.
I am fundamentally, an Software engineering and acting up as a conduit between technical and sales. I am really glad i asked you this question. Honestly i like the idea of uncertainity and very useful in the risk analysis. I see many advantages here. Since i am not a salesman but merely presenting a trend in sales (Actually bit more complex and i made as simpler as i could to avoid confusion to experts like you, who would want to help me). I saw your profile now and since you too come from Engineering background, here are more details. [A complex data of bugs found in a product to that time sales, and phase of the project, feature additions etc are considered to understand the impact of issues found vs testing time and impact on sales at that time]. I am surprised, that both the options chart A and Chart B(with peacock) possibilities are very much possible and sure have seen in my experience. That would be really great if i can somehow manage to make a mathematical equation from the data with variables input from you to use it as relevant. I am finding this very exciting as i could use either one to present the quality of product, possible sales figure for hardcore sales personnal etc.
I have a question here, the possible path it takes on the second chart, is based on a variable parameter ? if so that is vital for me because that could be quality, design gap etc etc.
then i see your chart as blessing because you have given me a variables with any change in them can change the outcome. Can i know the equation.
Thank you so much, this is incidentally second time i am relying on maths to resolve issues. The last time i had polyphonic sound with so many notes, not playable on phone because of MIPS issue, i had sought help of other team member who uses Matlab who gave me a algorithm .. i plotted a graph .. removed the notes in between the graphs to make least possible points on the graph . presto .. it played on the phone... i completed the feature. This time too thanks to you i could see real help.
I have another question here: Regarding the first chart, which is close to graph i presented, is there a possibility to know a factor, which determines the prediction of next point in the graph please.
Thanks a ton.
Hi bobbym.
Thank you very much. Apologies for for not getting your question right.
I observe in my sales report that for many small products, i research in our marketting the trend follows more or less with some variation ofcourse the graph i you have drawn or i enclosed.
So i want to use the equation whcih gives me the probability of sales and gives a far more opportunity to present risks and strategies. So i would like to have the equation which presents entire path (ofcourse need not be accurate at all). Is it possible ..
Please advice.
Thanks in Advance.
Hi bobbym
Thank you. However my upload of spread sheet did not go through here yesterday. It did not throw an error.
I have made that graph already as attached.
Regards to the question, The curve before it becomes predictable stright line with definite slope is observed data over the time and experience of sales and also expected sales.
I am more interested to see if there is any mathematical equation that fits (close and approximate is really OK). If there is a mathematical equation then it will be really useful for some prediction and can say to management with head high a nice way of presenting it.
Can you help me with a equation.
Regards
Hello Math Gurus,
I am trying to find if there is a way to represent a graph into equation. Not the other way.
Here is my problem, i trying to look for a proper mathematical equation which represents the sales graph Sales vs Geographic area coverage(i cannot say more)!! but this is how it looks, The graph moves upwards along the zero Y axis with '0' X co-ordinates and slowly at some point along the (0,y) co-ordinate starts to drop down as x co-ordinates increases .. as it drops down to a point and then it is y = mx + c straight line. The factor by which the graph relates initially is time and some constant or variable which determines the changes before the curve follows straight line with increasing slope.
The example is this .. (0,0), (0,4),(0,6),(0,8),(2,7), (4,6),(5,5),(7,9),(9,12),(12,14),(14,14),(16,16),(20,20) ... Anything close to it
The challenge is to make a pattern atleast close to the represented initial grpah before it has constant slope or something close.
Note: I am not particular about y=mx+c with something etc, Any thing which resembles this even remotely will be my formula to present the data.
Please any equation which even remotely resembles the this pattern, i am interested. I will add to the equation some variables which closely resembles this.
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