All Questions
6 questions
0
votes
2
answers
348
views
Multiply two rasters in R, one raster has stack of 25 images, and another raster has one image
I want to multiply two rasters (one has 25 images, and the second raster has 1 image). I am using the loop function for multiplication. But I am not getting the results.
library(raster)
library(rgdal)
...
- 11k
1
vote
0
answers
112
views
Creating NDVI tiles from NAIP tiles in R Loop
I have a folder with many 4 band NAIP .tif tiles, band 1 = Red, band 4 = NIR. In R I would like to create/calculate unsigned 8-bit NDVI images for each of the tiles in a folder. I would like to write ...
- 67
0
votes
2
answers
802
views
how to loop ndvi using R in sentinel-2
I have a two different stacks: one for band 4 (RED) and other with band 8 (NIR).
I'm trying to loop the calculation of NDVI in an area of interest using R.
Well, this is the loop that I'm trying to ...
- 13.8k
-2
votes
1
answer
623
views
Looping for NDVI in different file paths using R? [closed]
I have different bands separated in different file directory.
I used Raster Calculator to calculate NDVI using "NIR1.tif"-"RED1.tif"/"NIR1.tif"+"RED1.tif" as formula.
The link below describes a loop ...
- 13.8k
3
votes
1
answer
3k
views
Using Loop for calculating NDVI in R?
I am using MOD09Q1 now and I would like to calculating NDVI whole year data. One year, I have 46 band 1 images and 46 band 2 images.
list.files
I creating list of band 1 and list of band 2.
...
- 65.4k
0
votes
1
answer
3k
views
How to create a loop in R to average ndvi raster time series?
I have monthly ndvi raster geotiffs for multiple years. I need to run a loop to get the average of each of these ndvi grids/rasters.
Each of my ndvi rasters contains 143 pixels. I would like the ...
- 51.8k