Hi,You haven't provided any example dataset.
set.seed(42)
dat1 - data.frame(dates=seq(as.POSIXct(2009-01-01 00:00:00,format=%Y-%m-%d
%H:%M:%S),by= '12 hour', length=12),Field1=rnorm(12),Field2=LETTERS[1:12])
set.seed(395)
dat2 - data.frame(dates=seq(as.POSIXct(2009-01-01
Yes, your code did exactly what I needed.
Thank you!!
-f
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Sorry---I thought it worked but I think I am actually definitely doing
something wrong...
The problem might be that there are NA's and there are also duplicated
values...My fault. I can't figure out what is going wrong...
I'll be more thorough and modify the two df to mirror more what I have to
Hi,
I am trying to find a function to match two data frames of different lengths
for one field only.
So, for example,
df1 is:
Name Position location
francesca A 75
cristina B 36
And df2 is:
location Country
75 UK
56 Austria
And I would like to match on Location and the output to be something
] On
Behalf Of francy
Sent: Monday, October 03, 2011 10:55 AM
To: r-help@r-project.org
Subject: [R] Merge two data frames and find common values and non-matching
values
Hi,
I am trying to find a function to match two data frames of different lengths
for one field only.
So, for example
Hi,
On Mon, Oct 3, 2011 at 1:54 PM, francy francy.casal...@gmail.com wrote:
Hi,
I am trying to find a function to match two data frames of different lengths
for one field only.
So, for example,
df1 is:
Name Position location
francesca A 75
cristina B 36
And df2 is:
location Country
Dear list,
here are my two data frames:
av -
structure(list(DESCRIPTION = c(COFFEE C Sep/10, COPPER Sep/10,
CORN Dec/10, CRUDE OIL miNY Sep/10, GOLD Aug/10, HENRY HUB
NATURAL GAS Sep/10,
PALLADIUM Sep/10, SILVER Sep/10, SOYBEANS Nov/10, SPCL HIGH
GRADE ZINC USD,
SUGAR NO.11 Oct/10, WHEAT
TY Petr, it works. I will then replace NA by 0.
2010/8/4 Petr PIKAL petr.pi...@precheza.cz:
Hi
you tried OK
result - merge(zz, av, by=DESCRIPTION, all=TRUE)
and as you did not specify what to do when one value is NA here is one
possible solution
rowSums(cbind(result$PL.x, result$PL.y),
Hi Arnaud,
It is slightly confusing what you are asking but if you just want a
dataframe with the two zz$PL and av$PL columns concatenated then
merge is not what you are after.
Try something like this.
t - rbind(data.frame(PL=zz$PL), data.frame(PL=av$PL))
t
PL
1 3075.00
Dear group,
I have these 2 following data frame:
allcon -
structure(list(DESCRIPTION = structure(1:17, .Label = c(COFFEE C Jul/10,
COPPER May/10, CORN Jul/10, CORN May/10, COTTON NO.2 Jul/10,
CRUDE OIL miNY May/10, GOLD Jun/10, HENRY HUB NATURAL GAS May/10,
ROBUSTA COFFEE (10) Jul/10, SILVER
Got it!
First, here is the correct line :
y=merge(value,allcon,all.y=T)
Then, I got NA because of some white space (blancs) in names of elements of
my data frame VALUE.It came from the .csv file from where I obtained the
VALUE df. TY Excel again!
In fact, as a general advice, I would
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