Displaying 2 results from an estimated 2 matches for "duality_gap".
2012 Sep 09
2
use subset to trim data but include last per category
...frame df:
> str(df)
'data.frame': 5015 obs. of 5 variables:
$ n : Factor w/ 5 levels "1000","2000",..: 1 1 1 1 1 1 1 1 1 1 ...
$ iter : int 10 20 30 40 50 60 70 80 90 100 ...
$ Error : num 1.05e-02 1.24e-03 3.67e-04 1.08e-04 4.05e-05 ...
$ Duality_Gap: num 20080 3789 855 443 321 ...
$ Runtime : num 0.00536 0.01353 0.01462 0.01571 0.01681 ...
But if I plot e.g. Runtime vs log(Duality Gap) I have too many observations due to taking a snapshot every 10 iterations rather than say 500 and the plot looks very cluttered. So I would like to trim...
2012 Aug 27
2
simplest way (set of functions) to parse a file
Hello,
What would be the best set of R functions to parse and transform a file?
My file looks as shown below. I would like to plot this data and I need to parse it into a single data frame that sorts of "transposes the data" with the following structure:
> df <- data.frame(n=c(1,1,2,2),iter=c(1,2,1,2),step=as.factor(c('Step 1', 'Step2', 'Step 1',