All Questions
Tagged with missing-data r
10 questions
6
votes
4
answers
7k
views
Replace NA's with 0 for large raster data using R?
I want to replace all NA values in a large raster with 0. I found this answer to Replacing NAs with 0 for raster data using R :
#getting a raster
library(raster)
f <- system.file("external/...
- 11k
15
votes
1
answer
23k
views
Replacing NAs with 0 for raster data using R [duplicate]
I am new in R.
How can I replace NAs with 0 for my raster data which have spatial information?
- 65.4k
0
votes
2
answers
101
views
Trying to apply inlabru:::bru_fill_missing to a SpatialPointsDataFrame to fill in NAs
I'm struggling with a function from the inlabru R package, which could help me fill in the NAs in my data.
According to the helpfile, I need:
bru_fill_missing(
data,
where,
values)
data is a ...
- 1,419
-1
votes
1
answer
70
views
How to convert missing values to the mean of the other values in R? [closed]
I need to convert the missing values of a column in a dataframe with the rest of values of this column, grouped by Districts and Month.
This is a sample of my df1:
Date Day Month Year ...
- 99
4
votes
1
answer
608
views
Interpolating LiDAR intensity images in R?
I'd like to generate 0.5 m intensity images using lidR, but the resulting raster is full of pits. Here's a reproducible example:
library(lidR)
LASfile <- system.file("extdata", "MixedConifer.laz", ...
- 10.3k
2
votes
1
answer
2k
views
R kriging cross validation returns NA for all prediction points?
I'm trying to cross-validate the results of an [auto]Krige output but for some unknown reason the results of both autoKrige.cv (automap package) and krige.cv (gstat package) return NA for all values (...
- 10.3k
2
votes
2
answers
2k
views
Getting a masked raster with no NAs and sum pixels within overlaying polygon?
I have done an IDW interpolation in R for precipitation data following the routine of Manny Gimond (https://mgimond.github.io/Spatial/interpolation-in-r.html) to get precipitation inside a catchment.
...
- 10.3k
1
vote
0
answers
272
views
Space-Time Principal Component Analysis with Missing Lat/Long Data [closed]
I am looking to run a space-time Principal Component Analysis on Shotspotter data from Brockton, MA: http://justicetechlab.org/data/. Shotspotter sensors record the timing, location, and number of ...
- 65.4k
1
vote
2
answers
1k
views
Export GRASS raster as GeoTIFF : nodata values exported as -nan (what happens in R?)
I am using the package raster to work with GeoTIFF raster files which I exported from GRASS using r.out.gdal. GRASS assigned the value -nan to some raster files (type FLOAT32) for missing values. ...
- 13.6k
8
votes
1
answer
393
views
Interpolating points observed with different time duration
I am doing spatial interpolation with a group of points.
Some points have complete observation of events:
for a period of 24 hours we have observed N events in each point. These points have N events....
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- 1