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Hi, You must you the OD matrix tool. with student location as origin and school as destination. You will get what you need. Of course later you will have to do little math on the result to get means. regards,
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03-10-2014
01:11 AM
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658
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That will not be a problem. Here in picture you can see. The violet are water bodies, and in the second image, the water gets classified as surrounding landuse type. I made random points in each landuse, you can be more specific in choosing the location of points. I just do it for methodology. in case one where, water body circle is half half in two landuses, blue and orange, half the circle goes to blue (green in new IDW) and half the circle go to orange (yellow in new IDW) in case two where water body is eclipse shape, completely within orange landuse, then it is completely absorbed into yellow landuse in the new IDW. I did it roughly, you can spend more time and make it more accurate, you can even use the barrier line in IDW so that cells values dont creep into others and you preserve the original shape. later you can reclassify your IDW raster to have the same 7 landuse classes. then what you want can be made. 🙂 regards,
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02-18-2014
02:14 AM
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912
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Oki. Then you must use the azimuth object. Add new variable (angle_from_y) of cost type to your network dataset, and in evaluators select script evaluation. and write value = edge.fromazimuth in the from-to case and =edge.toazimuth in the to-from evaluator. build you network and then when you identify the line, you will see the azimuth values. from these azimuth values, you can tell the direction of the digitization.
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02-17-2014
07:04 AM
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Hi, Just thinking of this case, I think it will work Convert your raster to point layer. Delete all your water points. From the remaining points, generate a surface using interpolation tools like IDW . Once you understand with IDW you could go deep with more specific methods of kriging, spline, natural neighbour, trend etc, even manipulate your data so that it produces desired results. regards,
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02-17-2014
01:15 AM
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912
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You must use the tools of spatial analyst. And create surface rasters using IDW, Spline, Krigging etc. That is a whole new subject. If you are unsure of what to do, just go with IDW, it is simplest to understand. regards,
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02-17-2014
12:58 AM
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Hi, Right click the layer and go to symbology and then go to edit symbol. At the top, under properties, from the type dropbox, select cartographic line symbol. select the line in layers window on the left and on the right select "Arrow at end" what ever suits you. regards,
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02-17-2014
12:52 AM
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617
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Yes, I did not mean you change them to numerical values. 🙂 The non-linear PCA method changes them based on a established algorithms and taking cognizance of the other variables and their correlations and then reduces the dimensionality. regards
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02-17-2014
12:40 AM
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1965
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SAS can read .asc files and shapefiles also and gird formats also. Open-source tools like R are more flexible. Once you import them to SAS, I am sure you can do non-linear PCA if such a thing exists in SAS (it exists in SPSS so I assume SAS has it too). I found something here http://support.sas.com/documentation/cdl/en/apdatgis/65034/PDF/default/apdatgis.pdf categorical values will not complicate the analysis as long as you understand the method and you accept its assumptions. In short, non-linear version of PCA first brings all categorical data to numeric format. you can stop here and bring data to arcgis PCA. Or you can finish till you get the factors and then come into arcgis. regards,
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02-15-2014
08:36 PM
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1965
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First: you should not be using OD feature for your task. You must instead use 'closest facility' analysis. as shown here http://help.arcgis.com/en/arcgisdesktop/10.0/help../index.html#//00470000004n000000 Second: checking visually or connectivity rules is not enough. If you doubt a path, check for a simple shortest path by clicking on origin and destination and solve it for a route. Third: results from OD are not shown with geometric alignment along the road network, it is shown as aerial distance but it contains real world travelled distance. So please do not conclude based only on graphic display of result especially with OD tool. regards,
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02-15-2014
08:20 PM
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899
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may be use dynamic segmentation of linear referencing feature of arcgis. http://resources.arcgis.com/en/help/main/10.2/index.html#//003900000001000000
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02-07-2014
02:24 AM
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606
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I found a solution here but it is not free 😞 http://www.ian-ko.com/ET_Surface/UserGuide/ETS_Multipatch2Polygon.htm#ToolBox_implementation Catharina may be this will work for you if you have simple polygons as in your picture. regards,
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02-03-2014
03:47 AM
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675
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I am having the same problem. Any help is appreciated. thanks
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02-03-2014
03:25 AM
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675
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If you activiate your PM, i can send you the message, because I am not sure, If I can discuss external software here.
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02-02-2014
04:55 AM
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I do not think NA is a good place. You could, however to an extent, do this if you are good at programming with some assumptions. You basically iterate shortest path while each segment load (volume or resistance) is fed back into the next shortest path calculation. So no direct solution, I remember a group from denmark that made extensions for this but not free solution, its a traffic modelling package for arcgis. To an extent you could look at utility analyst, that helps in finding effects of a segment on upstream network. Also not a very direct solution. In short, dynamics is not the name of the game in NA. ** I am still not sure what is your end purpose, I can suggest some free tools outside arcgis if you like.
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02-02-2014
04:41 AM
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I can try for your question if you can clarify what you mean by "cars passing" and how will you get the number ? from external source/file ? I ask because NA is not dynamic in nature. because basically what you are looking at is a v/c ratio. If you are getting v from a external source, then what remains is just a division of attributes. and then use symbology by proportion. For just plotting exercise, I would recommend dynamic segmentation and linear referencing of arcgis.
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02-02-2014
04:22 AM
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