[R] Reading a tiff image

2015-05-14 Thread Preethi Balaji
Dear R users, I am new to R and trying to learn raster image processing in R. I have a tiff image with pixel values and I am trying to read this image in R so that I can make some calculations and process the image. Could you please tell me how to read a tiff image in R? Thanks! -- Regards, *

[R] Boxplot using a shapefile

2015-06-15 Thread Preethi Balaji
Dear all, I am trying to generate boxplots by giving a shapefile and an image as input. The shapefile takes the pixel values from the image and shows the distribution of pixels in the form of a boxplot. Can somebody please tell me how I can execute this in R? Many thanks! -- Regards, Preethi

Re: [R] Boxplot using a shapefile

2015-06-16 Thread Preethi Balaji
- but(!): >> - see here for some hints on how to ask questions productively: >> http://adv-r.had.co.nz/Reproducibility.html >> > http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example >> - ... and please read the posting guide and don&