Hi,
I have two sets of data that I would like to put into a data frame. But
since they have different length, I am not sure how to do this. Here is an
example of my data:
data set one:
date growth
1/1/2007 10
1/2/2007 10.2
1/3/2007 10.4
1/4/2007 10.6
data set two:
date growth
1/1/2007 22
1/2/2007 22.5
1/4/2007 22.4
I would like to combine the two data sets and create a data frame like this:
date growthA growthB
1/1/2007 10 22
1/2/2007 10.2 22.5
1/3/2007 10.4 NA
1/4/2007 10.6 22.4
Or skipping the missing data point all together, like this:
date growthA growthB
1/1/2007 10 22
1/2/2007 10.2 22.5
1/4/2007 10.6 22.4
Right now I am doing this by hand, and it is really time consuming. I am
wondering if there is an easier way of creating data frames from unequal
length data using existing R functions. Is there a way to create data
with equal length based on the date column? I would appreciate any help from
the group.
Thanks,
--
Tom
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