Latest Contributions by ShouvikJha

‎07-30-2017

Thanks, Dan_Patterson‌, I am trying to further explore the script.

‎07-29-2017

Hi Xander Bakker‌, Thank you. I have attached the Dropbox link at the thread for accessing the data. Due to the size limit, I could not attach the data with here, however, you can download the data by that link and please have a look.

‎07-29-2017

Hi Xander Bakker‌, Thank you. The script is quite interesting. in above script, there are seven client's data has been used for the analysis. Instead of using a numeric value which you assigned as an input data, it can be possible to assign raster file or ASC file in there? If is it possible to use raster or ASC file as an input data then output also can be written in raster format. (Plz give your opinion also) Somewhere I have read that if we stack all the year's data and make it a single raster. Might be it will help us to perform a loop on all pixels (number of the pixels at same grid point for all years, so in my case at the same grid point, the number of pixels is 13) at same grid point for the raster based statistical analysis such as trend, correlation etc. basically, Since long the geospatial research communities are also looking for the same analysis on Python or ArcGIS raster calculator platform, as following 1) Raster based Trend Analysis through time series data. 2) Raster based correlation analysis between two variables. Just assume the correlation analysis between Temperature and precipitation raster data and output also be in raster format. If the above issues can be solved on Python platform so it would be a very good news for all researchers who are looking for the solution since long. The tool which you suggested, It is very helpful and the number of functions is inbuilt with the tool but the only issue is, it is only functioning on ArcGIS 10.1 version. It is not compatible with the later version of ArcGIS 10.1 and taking too long time for the analysis. However, I am going through with that tool. In addition, I am trying to further explore the script which you provided. It is our kind request behalf of the geospatial research community, India, please show a path to overcome the issues. If you need the sample data, I can provide you some datasets for further investigation on the matter. Once again thank you very much for your cooperation. With warm regards Shouvik Jha

‎07-27-2017

Xander Bakker Patterson‌ , A request to you peoples, We need your kind cooperation to solve the issue. Since long i am trying but not solved yet. Thanks

‎07-27-2017

Hi All, I have total 13 raster files for different years (2001 - 2013). All data are in tiff format and same spatial extent (row and column). I am trying to perform regression line slope/trend analysis between each grid points for 13 raster data sets. I have tried in ArcGIS raster calculator but I won't run the task due to complexity. The outcome would measure the net change between pixels through my time series data. So my question is, can it be performed using raster calculator or ArcPy Script? For such type of statistical analysis using ArcGIS, really I am facing one of the big limitation with ArcGIS. Using excel, it can be calculated using SLOPE command where X (Time) and Y (value) has been used. But for creating a Spatial map of Slope/trend analysis, we need to perform using raster data. The download link is given below for Sample data sets (Due to size limit, I could not attach the data with here ) Data Link: Dropbox - Water_Use_Efficiency.zip Please share your experience. Thanks in advance.

‎07-03-2017

please guide us, how to do it ?

‎07-02-2017

Buchbinder I don't understand the structure of script which you posted. If you could brief it will be most useful. Already I have made a Mxd file, that mxd file hold almost all information regarding single day of rainfall raster map, Now i just want to perform a loop function which will take one by one raster from a folder and follow the same symbology of existing mxd then export it to jpg format. And based on image date, the title of the map (where I mentioned the date), that will also be changed. I have attached sample data which I am working on. If you open this file hope you will get more clarity about the work Thank you

‎07-02-2017

it would be possible like this way, If I create one mxd file, with all layouts which I require in maps, can I do loop function for other rasters, So another raster just will add the existing mxd file through loop function and will follow the existing symbology and export it to JPG

‎07-02-2017

Thanks. But i don't understand how to replace the rasters into mxd and then export. If i get likely structure the code, it would be useful to solve the issue.

‎07-01-2017

Hi All, I am working on daily rainfall data. I have multiple rasters map for different dates. I want to convert those map into JPEG format along with all layouts (Title, Legend, North arrow, scalebar etc). Already i made a map by manually which i attached below with my sample datasets. I have numbers of datasets for different dates, therefore, i want to do it using Arcpy to create the different date wise map and export it to JPEG format. How to do it in ArcPy environment. I have one script but that is for converting multiple mxd to JPEG, but to create automatically mxd files along with all layouts based on multiple date wise rasters and then export it to JPEG, I am getting trouble to make it. I have attached below my sample datasets which I am working. One output map also attached with the sample data sets, which I made by manually. But instead of manually i just take the whole part in ArcPy. Thank you in advance. import arcpy, os folderPath = r"D:\data\sample_data" for filename in os.listdir(folderPath): fullpath = os.path.join(folderPath, filename) if os.path.isfile(fullpath): basename, extension = os.path.splitext(fullpath) if extension.lower() == ".mxd": mxd = arcpy.mapping.MapDocument(fullpath) arcpy.mapping.ExportToJPEG(mxd, basename + '.jpg', resolution = 300)‍‍‍‍‍‍‍‍‍‍

‎04-04-2017

Hi All, I am working on two raster datasets, one raster is co-relation coefficient and another one is the significance of correlation. I want to plot significance of correlation raster as a point, where the significance value more than > 90 % then it will create point feature on base map. Meanwhile, here base map will be co-relation coefficient raster and significant of correlation raster will overlay as a pattern feature where > 90 significance value, then it will make point feature on the correlation raster. Below i am showing the images what i am trying to do, Above image shows correlation coefficient along with significant value (By balck doted), where significant value > 90 , then point will create automatically else no point will create. Thank you

‎04-03-2017

Curtis Price‌, Thank you. I ran the script to get statistics value of raster along with raster name, but its printing same name for all rasters which i have in folder, its printing like Extract_anno2 Mean: -0.501958936453 Min: -0.536289691925 Max: -0.455532312393 Std: 0.0377060631886 Extract_anno2 Mean: -1.16915395856 Min: -1.18902957439 Max: -1.14363610744 Std: 0.0214943939412 Extract_anno2 Mean: -0.344216823578 Min: -0.357096046209 Max: -0.327130705118 Std: 0.0135495629474 Extract_anno2 Mean: 0.0810092817992 Min: 0.0689202919602 Max: 0.0912198796868 Std: 0.00927550311987 Extract_anno2 Mean: 0.4306351915 Min: 0.41828379035 Max: 0.440097242594 Std: 0.00911574925779 ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ My raster name is, annomaly_SPEI06_2001.tif, annomaly_SPEI06_2002.tif, annomaly_SPEI06_2003.tif, annomaly_SPEI06_2004.tif, annomaly_SPEI06_2005.tif, . . . . . annomaly_SPEI06_2012.tif, ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ I want to get print raster name, like annmly_spei06_2001.tif Mean: -0.501958936453 Min: -0.536289691925 Max: -0.455532312393 Std: 0.0377060631886 annmly_spei06_2002.tif Mean: -1.16915395856 Min: -1.18902957439 Max: -1.14363610744 Std: 0.0214943939412‍‍‍‍‍‍‍‍‍‍‍‍ . . . . ‍‍‍‍‍‍‍‍

‎04-02-2017

xander_bakker‌, Thank you very much for brief clarification.

‎03-31-2017

Hi @Curtis , Thank you. This is exactly what i was trying to do. But I want to some modification of this code, 1. I want to print the raster statistics along with raster name, current script producing only raster statistics, For Example, along with raster name Its looks like: Annmly_SPEI12_2001.tif MEAN VALUE: -0.6128285124898 MIN VALUE: -1.0352302789688 Max VALUE: -0.33303740620613 Annmly_SPEI12_2002.tif MEAN VALUE: -1.2694534122944 MIN VALUE: -1.6432282924652 Max VALUE: -0.99528157711029‍‍‍‍‍‍‍‍ 2. What's the statement for getting Standard deviation value? I applied below statement to get SD, but not working print "SD VALUE: %s" % rasterObj.std‍

‎03-31-2017

xander_bakker‌, I am very grateful to get such offer from you. Can you kindly explain the step involved line no 16 to 21. Thanks Shouvik Jha

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Latest Contributions by ShouvikJha

Re: Trend Analysis Through Time Series of Raster Data

Re: Trend Analysis Through Time Series of Raster Data

Re: Trend Analysis Through Time Series of Raster Data

Re: Trend Analysis Through Time Series of Raster Data

Trend Analysis Through Time Series of Raster Data

Re: Create multiple Mxd and export it to JPEG using ArcPy

Re: Create multiple Mxd and export it to JPEG using ArcPy

Re: Create multiple Mxd and export it to JPEG using ArcPy

Re: Create multiple Mxd and export it to JPEG using ArcPy

Create multiple Mxd and export it to JPEG using ArcPy

Plot Correlation coefficient along with Significant Value in Arc GIS 10.3

Re: Assign a Mask file to Get Raster Properties

Re: Loop through multiple folder and Calculate mean of raster of Same folder

Re: Assign a Mask file to Get Raster Properties

Re: Loop through multiple folder and Calculate mean of raster of Same folder

Re: How to interpolate temperature data (kriging) ...

Re: Conversion multiple Raster to NetCDF using Arc...

Re: Trend Analysis Through Time Series of Raster D...

Re: calculate mean of selected raster chosen from ...

Re: Calculate list of raster from two different su...