How to plot a subset of a data frame in R

Question

Is there a simple way to do this in R    plot var1 var2  for all observations in the data frame where var3  lt  155    It is possible by creating a new data  newdata  lt - data which  data var3  lt  155    but then I have to redefine all the variables newvar1  lt - newdata var1 etc

User · Answer

Most straightforward option   plot var1 var3 lt 155  var2 var3 lt 155     It does not look good because of code redundancy  but is ok for fastndirty hacking

User · Answer

with dfr dfr var3  lt  155    plot var1  var2   should do the trick   Edit regarding multiple conditions   with dfr  dfr var3  lt  155   amp   dfr var4  gt  27     plot var1  var2

User · Answer

This chunk should do the work   plot var2   var1  data subset dataframe  var3  lt  150     My best regards   How this works    Fisrt  we make selection using the subset function  Other possibilities can be used  like  subset dataframe  var4    some   amp  var5   10   The   amp   operator can be used to select all  some  and over 10  Also the operator     could be used to select  some  or  over 10   The next step is to plot the results of the subset  using tilde     operator  that just imply a formula  in this case var response   var independet  Of course this is not a formula  but works great for this case

User · Answer

This is how I would do it  in order to get in the var4 restriction   dfr lt -data frame var1 rnorm 100   var2 rnorm 100   var3 rnorm 100  160  10   var4 rnorm 100  27  6   plot  subset  dfr  var3  lt  155  amp  var4  gt  27  select   c  var1  var2         Rgds  Rainer

[r] How to plot a subset of a data frame in R?

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