[R] combine select data from 2 dataframes sharing same variables

[Peter Alspach]

Tena koe

Without reading your request in detail, I will suggest you look at ?merge.  It is often the answer when 'combine' is in the question.

Peter Alspach

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of bcrombie
Sent: Thursday, 18 July 2013 8:13 a.m.
To: r-help at r-project.org
Subject: [R] combine select data from 2 dataframes sharing same variables

#####  The following dataframes are the result of two analyses performed on the same set of numeric data.
# The first analysis involved calculations that did not include zero values:
StatsUTAH = data.frame(MWtotaleesDue =
c(8.428571,2.496256,7,6.604472,1,17,3.593998,4.834573,12.02257),
                       OTtotaleesDue =
c(6.6,2.242023,3,7.089899,1,23,3.100782,3.499218,9.700782),
                       OTtotalBWsDue =
c(559.944,305.7341,257.55,966.816,15.19,3232.97,422.839,137.105,982.783),
                       TotalBWsFD =
c(693.2973,265.0846,267.58,1026.6682,15.19,3232.97,356.5468,336.7505,1049.8442))
rownames(StatsUTAH)<- c("Mean","StdError", "Median", "StdDev", "Min", "Max", "NinetyPct", "NinetyPctLower", "NinetyPctUpper") StatsUTAH

# The second analysis involved calculations that included zero values:
sStatsUTAH = data.frame(MWtotaleesDue =
c(0.9076923,0.411799,0,3.3200295,0,17,0.5332467,0.3744456,1.440939),
                        OTtotaleesDue =
c(1.0153846,0.4442433,0,3.5816036,0,23,0.5752594,0.4401252,1.590644),
                        OTtotalBWsDue =
c(86.14523,51.5752,0,415.81256,0,3232.97,66.78575,19.35948,152.93098),
                        TotalBWsFD =
c(159.99169,69.86036,0,563.23225,0,3232.97,90.46357,69.52812,250.45526))
rownames(sStatsUTAH)<- c("sMean","sStdError", "sMedian", "sStdDev", "sMin", "sMax", "sNinetyPct", "sNinetyPctLower", "sNinetyPctUpper") sStatsUTAH

#the rows 1-9 may have different names in each dataframe but are the same corresponding calculation in both.

#####  I need to combine these data so that the OUTPUT is a SEPARATE table (or matrix or whatever) # FOR EACH VARIABLE SHARED BY THE DATAFRAMES that I can place in a word document (which I can handle later with RTF).
#####  This is how I've mapped it out in my head, but need to convert to R
language:
# StatsUTAH ---data for "zeroNO"
# sStatsUTAH ---data for "zeroYES"
#
# Table 1: MWtotaleesDue
# colnames("zeroNO", "zeroYES")
# rownames("Mean","StdError", "Median", "StdDev", "Min", "Max", "NinetyPct", "NinetyPctLower", "NinetyPctUpper") # # Table 2: OTtotaleesDue # same colnames & rownames as Table 1 # # Table 3: OTtotalBWsDue # same colnames & rownames as Table 1 # # Table 4: TotalBWsFD # same colnames & rownames as Table 1

#WHAT IS THE BEST WAY TO DO THIS IN R?
#While a loop may be more efficient, is there also a good way to create each table separately?
#Note: my real dataframes (StatsUTAH,etc) will have a lot more variables than what are listed in this example #so I will probably be picking and choosing which ones I'm interested in creating tables for.



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