Re: [R] Help with sub-setting data.frame

Your subset problem has been solved already but i'd like to add a comment on this: I want all rows where TTE is equal to 0.024657534 Comparing floating point numbers for equality with '==' is problematic so a simple df[df$TTE == 0.024657534, ] can easily fail. have a look at help(==),

Re: [R] Help with sub-setting data.frame

On Wed, 2 Sep 2009 17:12:18 +1200 Worik R wor...@gmail.com wrote: WR I have a data frame, df that I want to extract some rows from What you need is subset, see ?subset Example: df-data.frame(TTE=(0:10)/100,SOME=rnorm(11)) df # subset with all columns subset(df,TTE0.02) # the same as:

Re: [R] Help with sub-setting data.frame

Thanks. I have no idea how I did not try that. Sigh! all good now! Worik On Wed, Sep 2, 2009 at 7:04 PM, Stefan Grosse singularit...@gmx.net wrote: On Wed, 2 Sep 2009 17:12:18 +1200 Worik R wor...@gmail.com wrote: WR I have a data frame, df that I want to extract some rows from What you

[R] Help with sub-setting data.frame

Friends I have a data frame, df that I want to extract some rows from Here is a sample of the data head(df) TDate Expiry Underlie Strike CSettle PSettle Futures ExDate TTE 1 20080102 200801 200803 0.840 0. 0 0.9207 20080104 0.005479452 2 20080102 200801 200803 0.850