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Suppose that you got a csv file namely newedata.csv contains those following data.       Ozone Solar.R Wind Temp Month Day 1      41     190  7.4   67     5   1 2      36     118  8.0   72     5   2 3      12     149 12.6   74     5   3 4      18     313 11.5   62     5   4 5      NA      NA 14.3   56     5   5 6      28      NA 14.9   66     5   6 7      23     299  8.6   65     5   7 ................................................ ................................................ ................................................ 148    14      20 16.6   63     9  25 149    30     193  6.9   70     9  26 150    NA     145 13.2   77     9  27 151    14     191 14.3   75     9  28 152    18     131  8.0   76     9  29 153    20     223 11.5   68     9  30 So how to remove NA values or to know how many NA values  are in your newdata.csv file or its specific row or column To Removes NA values From entire data set First Load newdata.csv in your R program Type

R is a programming language and software environment for statistical computing and graphics. The R language is widely used among statisticians and data miners for developing statistical software and data analysis.[From Wiki] There are Two way to install R on Ubuntu. Method 1: Using Terminal * Open Terminal and Type  sudo apt-get install r-base * After download to Start R  Programming  Type R on Terminal and Learn by Coding. Method 2 Installing R Studio * Go this site  and download it.