Displaying 2 results from an estimated 2 matches for "rnchh".
2011 Dec 28
1
subset() missing one factor
...t (called 'chemdata') has 6 columns (4 factors, 1 date, 1
numeric) and I need to create subsets for each of one of the factors
('stream'). This has worked flawlessly for all but two streams which were
created yesterday.
The command I use to create the subsets is like this:
> rnchH <- subset(chemdata, stream == 'RanchSpgsH', select = c(site, sampdate,
param, quant), drop = T)
but it does not copy the dates in 'sampdate' for this and one other subset:
> str(rnchH)
'data.frame': 0 obs. of 4 variables:
$ site : Factor w/ 138 levels "BC-...
2012 Jan 09
1
Different lm() Residuals Output
...~ Cond + Ca + Cl + Mg + Na + SO4, data = snow.cast)
Residuals:
Min 1Q Median 3Q Max -277.351 -32.551 -2.621
40.812 245.272
The one that doesn't has only a small number of rows (23) and presents the
results as:
lm(formula = TDS ~ Cond + Ca + Cl + Mg + SO4, data = rnchH.cast)
Residuals:
8 9 10 11 12 13 14 16 20 21
-2.1926 3.2306 -3.9823 -4.0491 0.5284 1.9354 2.4798 0.8952 -3.0642 0.8781
22
3.3408
What might cause this difference?
Rich