[R] Download data ph soil

Dear list members, I am looking for soil pH data for Europe and Africa, but I don't. I need them to set up a map in R for my research. Please, someone where to find this data in tif formats preferably. thank you [[alternative HTML version deleted]]

[R] function for remove white space

Hi all, i have a dataframe with 34 columns and 1534 observations. In some columns I have strings with spaces, i want remove the space. Is there a function that removes whitespace from the entire dataframe? I use gsub but I would need some function to automate this. Thank you very much in

[R] twitteR

Hello, i need help, I'm trying to get oauth authorization to get rcredentials .RData the code that i use is: library(twitteR) library(tm) library(wordcloud) library(RColorBrewer) library(RCurl) library(ROAuth) options(RCurlOptions = list(cainfo = system.file(CurlSSL, cacert.pem, package =