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creating a directed graph from XY scatter
Would like to use XL to create a connected graph ( finance calls it a
binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
In the simpest case:
1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
You could probably write an algorithm in VBA that would generate the nodal
coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
I can sure try the second suggestion.
I like the VBA suggestion a lot. But if the nodal cooridnates are in "points" then I am stumped---I do not know how to find them. The idea of "points" versus "XY coordinates " has me crazy". Thanks a lot, I will try the suggestion tomorrow. "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
The 'nodal coordinates' would use the same frame of reference as the
original data. One possible algorithm would take the original data and rewrite them in the format suggested by Jon so that a single series would do the job. Another algorithm would be to rewrite the data to be the eqivalent of a depth-first search (to borrow a term from Computer Science). The result would be: 0 100 1 110 2 121 1 110 2 100 1 110 0 100 1 90 2 100 1 90 2 81 Use the above for a single series XY Scatter chart with connecting lines. -- Regards, Tushar Mehta www.tushar-mehta.com Excel, PowerPoint, and VBA add-ins, tutorials Custom MS Office productivity solutions In article , "=? Utf-8?B?THVrZSBTcGFyIFVUQUZvcnRXb3J0aA==?=" <Luke Spar UTAFortWorth @discussions.microsoft.com says... I can sure try the second suggestion. I like the VBA suggestion a lot. But if the nodal cooridnates are in "points" then I am stumped---I do not know how to find them. The idea of "points" versus "XY coordinates " has me crazy". Thanks a lot, I will try the suggestion tomorrow. "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
Thanks
I will try this ASAp. My application of John's approach resulted in a correct scatter plot BUT when I selected a "line chart" the chart repeated the "X" axis -- each pair of nodes was connected but BUT the x-axis was " 01 01 12 12 12 12" so the nodal pairs never connected. Luke "Tushar Mehta" wrote: The 'nodal coordinates' would use the same frame of reference as the original data. One possible algorithm would take the original data and rewrite them in the format suggested by Jon so that a single series would do the job. Another algorithm would be to rewrite the data to be the eqivalent of a depth-first search (to borrow a term from Computer Science). The result would be: 0 100 1 110 2 121 1 110 2 100 1 110 0 100 1 90 2 100 1 90 2 81 Use the above for a single series XY Scatter chart with connecting lines. -- Regards, Tushar Mehta www.tushar-mehta.com Excel, PowerPoint, and VBA add-ins, tutorials Custom MS Office productivity solutions In article , "=? Utf-8?B?THVrZSBTcGFyIFVUQUZvcnRXb3J0aA==?=" <Luke Spar UTAFortWorth @discussions.microsoft.com says... I can sure try the second suggestion. I like the VBA suggestion a lot. But if the nodal cooridnates are in "points" then I am stumped---I do not know how to find them. The idea of "points" versus "XY coordinates " has me crazy". Thanks a lot, I will try the suggestion tomorrow. "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
John
Your approach created a perfect XY scatter using a single series... I selected "line" and obtained a good pairwise line each pair of nodes were connected. However the X axis repeated -- my axis : 01 01 12 12 12 12 As a resuly my nodes, pairwise connected, were not connected --oould look a christmas tree on its side. *121 / 110 * / \ 100 * * 100 \ / 90 * \ * 81 Thanks Luke "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
Luke -
No, you must create a Scatter chart, with the 'lines and no markers' sub type. This looks like a line chart but behaves like a scatter chart. So many people have trouble with line and scatter charts. I've written some web pages which might help clarify the differences: Scatter Chart or Line Chart? http://pubs.logicalexpressions.com/P...cle.asp?ID=190 X Axis: Category or Value? http://peltiertech.com/Excel/ChartsH...ValueAxis.html - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: Thanks I will try this ASAp. My application of John's approach resulted in a correct scatter plot BUT when I selected a "line chart" the chart repeated the "X" axis -- each pair of nodes was connected but BUT the x-axis was " 01 01 12 12 12 12" so the nodal pairs never connected. Luke "Tushar Mehta" wrote: The 'nodal coordinates' would use the same frame of reference as the original data. One possible algorithm would take the original data and rewrite them in the format suggested by Jon so that a single series would do the job. Another algorithm would be to rewrite the data to be the eqivalent of a depth-first search (to borrow a term from Computer Science). The result would be: 0 100 1 110 2 121 1 110 2 100 1 110 0 100 1 90 2 100 1 90 2 81 Use the above for a single series XY Scatter chart with connecting lines. -- Regards, Tushar Mehta www.tushar-mehta.com Excel, PowerPoint, and VBA add-ins, tutorials Custom MS Office productivity solutions In article , "=? Utf-8?B?THVrZSBTcGFyIFVUQUZvcnRXb3J0aA==?=" <Luke Spar UTAFortWorth says... I can sure try the second suggestion. I like the VBA suggestion a lot. But if the nodal cooridnates are in "points" then I am stumped---I do not know how to find them. The idea of "points" versus "XY coordinates " has me crazy". Thanks a lot, I will try the suggestion tomorrow. "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
Luke -
Yes, see my answer to your other post. You need a scatter type series, with the lines and no markers subtype. - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: John Your approach created a perfect XY scatter using a single series... I selected "line" and obtained a good pairwise line each pair of nodes were connected. However the X axis repeated -- my axis : 01 01 12 12 12 12 As a resuly my nodes, pairwise connected, were not connected --oould look a christmas tree on its side. *121 / 110 * / \ 100 * * 100 \ / 90 * \ * 81 Thanks Luke "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
Thanks -- I now have a binomial lattice that connects nodes with lines and
looks like an christmas tree on its side. I will look at your tutorial. MAybe if you get a chance you can desribe the value of the "blanks" in the data series. If it is in your tutorials then don't bother. Luke "Jon Peltier" wrote: Luke - Yes, see my answer to your other post. You need a scatter type series, with the lines and no markers subtype. - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: John Your approach created a perfect XY scatter using a single series... I selected "line" and obtained a good pairwise line each pair of nodes were connected. However the X axis repeated -- my axis : 01 01 12 12 12 12 As a resuly my nodes, pairwise connected, were not connected --oould look a christmas tree on its side. *121 / 110 * / \ 100 * * 100 \ / 90 * \ * 81 Thanks Luke "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
Luke -
The blanks are simply there to provide a gap in the connecting lines. If the lines appeared, they would zigzag back across your lattice. - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: Thanks -- I now have a binomial lattice that connects nodes with lines and looks like an christmas tree on its side. I will look at your tutorial. MAybe if you get a chance you can desribe the value of the "blanks" in the data series. If it is in your tutorials then don't bother. Luke "Jon Peltier" wrote: Luke - Yes, see my answer to your other post. You need a scatter type series, with the lines and no markers subtype. - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: John Your approach created a perfect XY scatter using a single series... I selected "line" and obtained a good pairwise line each pair of nodes were connected. However the X axis repeated -- my axis : 01 01 12 12 12 12 As a resuly my nodes, pairwise connected, were not connected --oould look a christmas tree on its side. *121 / 110 * / \ 100 * * 100 \ / 90 * \ * 81 Thanks Luke "Jon Peltier" wrote: You could probably write an algorithm in VBA that would generate the nodal coordinates, then dump them into cell positions which will produce the appropriate line segments. You could even have a pair of columns like this, with skipped lines, to build the lattice from a single series. 0 100 1 110 0 100 1 90 1 110 2 121 1 110 2 100 1 90 2 100 1 90 2 81 etc. Select the range, blank rows included, and draw an XY Scatter chart - Jon ------- Jon Peltier, Microsoft Excel MVP Peltier Technical Services Tutorials and Custom Solutions http://PeltierTech.com/ _______ Luke Spar UTAFortWorth wrote: In the simpest case: 1)All nodes are governed by analytics that specify the value of an "up move" and the tha value of a "down move".... for example UP = 1.1 Down = 0.909 2) In all cases the starting value is given 3) 100 * (Up=1.10) gives 110 100* (Down = 0.909) give `90 110 * (Up = 1.10) gives 121 ( note 100 * UP*UP = 121) 110*(Down =0.909) gives ~100 90* (UP=1.1) gives ~ 100 90* (DOWN = 0.909) gives ~ 81 The example above is refereed to as "Recombining" since 100*UP*DOWN yield 100. The UP and Down parameters can vary, by period, in more complex situations. Thus the tree is "not recombining" Luke "Barb Reinhardt" wrote: I suspect you'll need to have a different data series for each line. How do you determine which nodes are connected to one another? "Luke Spar UTAFortWorth" <Luke Spar wrote in message ... Would like to use XL to create a connected graph ( finance calls it a binomial lattice). X axis iis the time period t=1,2,3,...T, Y is value. XY scatter plots points OK. Need to connect points (nodes)--each node except for t=T has two lines coming out of it. A 3-peiod example is shown below. Eventually need to generalilze. Data is reference T Value NOde 1... 0 100 NODE 2... 1 110 NODE 3... 1 90 NODE 4... 2 121 NODE 5... 2 100 NODE 6... 2 81 FOR NOW: want a line to connect NODE 1 to NODE 2 want a line to connect NODE 1 to NODE 3 want a line to connect NODE 2 to NODE 4 want a line to connect NODE 2 to NODE 5 want a line to connect NODE 3 to NODE 5 want a line to connect NODE 3 to NODE 6 Suggestions would be greatly appreciated. Luke |
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