[RS-ecology] RS-ecology Digest, Vol 16, Issue 1

[Dragan Kaludjerovic]

Now I have changed it, but still getting error

install.packages("RStoolbox")
install.packages(raster)

library(ggplot2)
library(raster)
library(rgdal)

bs3 <- raster("C:/R_examples/VI/B3.TIF")
bs4 <- raster("C:/R_examples/VI/B4.TIF")

bs3
bs4

group <- brick(bs3, bs4)

data(group)

## Calculate NDVI

ndvi <- spectralIndices(group, red = "bs3", nir = "bs4", indices = "NDVI")

ndvi

error is:


> group <- brick(bs3, bs4)> data(group)Warning message:In data(group) : data set ‘group’ not found


On Sun, Dec 11, 2016 at 12:00 PM, <rs-ecology-request at lists.uni-wuerzburg.de
> wrote:

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>    1. problem with RStoolbox (Dragan Kaludjerovic)
>    2. Re: problem with RStoolbox (Martin Wegmann)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Sat, 10 Dec 2016 19:00:11 +0100
> From: Dragan Kaludjerovic <advancedgwt at gmail.com>
> To: RS-ecology at lists.uni-wuerzburg.de
> Subject: [RS-ecology] problem with RStoolbox
> Message-ID:
>         <CAFZvhLipaCHuq-hQsk_5i31ThbCXGQZ4cPhP87+YS4P6__
> rzDw at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi,
> I have just discover RStoolbox and try simple simple script
>
> install.packages("RStoolbox")
> install.packages(raster)
>
> library(ggplot2)
> library(raster)
> library(rgdal)
>
> data(img)
>
> ## Calculate NDVI
> ndvi <- spectralIndices(img, red = "C:/R_examples/VI/B3.tif", nir =
> "C:/R_examples/VI/B4.tif", indices = "NDVI")
> ndvi
>
>
> when I run it I got error message
>
> Error in match(xi, names(img)) : object 'img' not found
>
> Any suggestion is welcomed!
>
> Best Regards,
>
> Dragan
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> Message: 2
> Date: Sun, 11 Dec 2016 09:46:02 +0100
> From: Martin Wegmann <martin.wegmann at uni-wuerzburg.de>
> To: Dragan Kaludjerovic <advancedgwt at gmail.com>,
>         RS-ecology at lists.uni-wuerzburg.de
> Subject: Re: [RS-ecology] problem with RStoolbox
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