324 reputation
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visits member for 2 years, 2 months
seen May 25 at 3:16

May
13
asked Finding the best way to prepare raster image for a function in R
May
8
comment Error with “lowess” function in R
Before calculating this, I have just read images as single layers and stacked them. Then a small section of stacked image has been cropped by small extent to text the code. This cropped small section is being used for the calculation of this script. Can these read and crop function effect on the calculation?
May
7
revised How to crop an image into more than 80 small sections automatically in R
added 22 characters in body
May
7
asked How to crop an image into more than 80 small sections automatically in R
May
6
asked Error with “lowess” function in R
May
6
comment How to predict a variable as a function of time for each land cover
@Jeffrey Evans. When I run this function, there is something wrong. Can you tell me what "Error in .calcTest(x[1:5], fun, na.rm, forcefun, forceapply): cannot use this function" mean?
May
3
comment Is there any method to choose the value of each pixel according to land cover
I have found that it is easy in ERDAS using "Either if" conditional statement of model maker. Hope this helps.
May
3
comment How to predict a variable as a function of time for each land cover
Thank you Jeffrey Evans. The reason to separate each land cover is just to reduce file size. Due to big size of image, R is taking very long time for this calculation. Then someone suggested me to use timely average data or spatial subset. Since timely information is my main point, I decided to calculate the regression for each land cover.
May
2
asked How to predict a variable as a function of time for each land cover
Apr
29
comment Do I need to run regression in each samples separately?
Thank you. I'll try to use R.
Apr
29
accepted Using floating point raster image for majority filter in ArcGIS?
Apr
28
comment Do I need to run regression in each samples separately?
Thank you for your feedback. But I don't have any experience in R. If you tell me the steps I can take in ARCGIS, it would be appreciated.
Apr
28
asked Using floating point raster image for majority filter in ArcGIS?
Apr
28
comment problem of using TIMESAT to processing MODIS NDVI
Did you solve this problem? if so, please write the solution. Thank you.
Apr
28
comment problems of display modis ndvi with TIMESAT
Hi GUTGIS. I have a same problem to open time series images in ENVI stand format on TIMESAT. The problem is exact the same with the problem you encountered above. My image size is so big col is 12618, row is 4144. I'm wondered that Timesat can open such big images? What was the image size you used in TIMESAT?
Apr
28
asked Do I need to run regression in each samples separately?
Apr
22
comment Is there any method to choose the value of each pixel according to land cover
I have added the field and assigned numbers to them like forest 1, desert 2 etc. Then added 2 raster images (LC and temp) into raster calculator and then no idea how to create output image which include pixel values of temperature img and LC number.
Apr
22
comment How to export raster value into excel or ASCII
I changed the question above to give more detail explanation about my task.
Apr
22
revised How to export raster value into excel or ASCII
gave more detail explanation
Apr
22
revised How to export raster value into excel or ASCII
changed to use one of the software