[R] R how to find outliers and zero mean columns?
normanmath1 at gmail.com
Thu Mar 31 00:56:26 CEST 2016
I am new to R so please help me to do this task.
Please find the attached data sample. But in the original data frame I
have 350 features and 400000 observations.
I need to carryout these tasks.
1. How to Identify features (names) that have all zeros?
2. How to remove features that have all zeros from the dataset?
3. How to identify features (names) that have outliers such as 99999,-1 in
the data frame.
4. How to remove outliers?
More information about the R-help