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2008 Apr 01
1
set the lower bound of normal distribution to 0 ?
...mpling from truncated distribution since I want the samples to take values from 0 to the max(x) respectively max(y). I am unsure how to specify the means and standard deviations in 'urlnorm'. Based on x- and y-values I have standard deviations sd_x=0.3372137, sd_y=0.5120841 and the means mean_x=0.3126667 mean_y=0.4223137 which are not on log scale as required in urlnorm. To covert sd_x, sd_y and mean_x, mean_y on a log-scale I did sd_logx=sqrt(log(1.3372137))=0.54, sd_logy=sqrt(log(1.5120841))=0.64, mean_logx=-(0.54^2)/2 and mean_logy=-(0.64^2)/2. Can anyone tell if these are correct...
2013 Feb 01
2
Nested loop and output help
Hello Everyone, My name is Thomas and I have been using R for one week. I recently found your site and have been able to search the archives of posts. This has given me some great information that has allowed me to craft an initial design to an inquiry I would like to make into the breakdown of McNemar's test. I have read an intro to R manual and the posting guides and hope I am not violating