Shahzad questions

• Implicit declaration of function abs - gcc-5.1.0
• Using standard function name in C
• Bad substitution error in bash script
• Adabag package in R
• Difference between regression tree and model tree
• Scaling data in R gives spurious Error "length of 'center' must equal the number of columns of 'x'"
• Determining minimum values in a vector in R
• Empty plot in R
• Univariate outlier detection
• Error compiling gcc 4.6.2 under ubuntu 11.10

Shahzad answers