Displaying 20 results from an estimated 85 matches for "corn".
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2011 Feb 08
4
Interactions in a nls model
I am interested in testing two similar nls models to determine if the
lines are statistically different when fitted with two different data
sets; one corn, another soybean. I know I can do this in linear models
by testing for interactions. See Introductory Statistics with R by
Dallgaard p212-218 for an example. I have two different data sets I am
comparing to lai. ci.re should have very little difference between corn
and soybean, while ci.gr, the...
2011 Oct 16
3
Which function to use: grep, replace, substr etc.?
Hello,
I have a simple question but I don't know which method is best to use for my
problem.
I have the following strings:
str1 <- "My_name_is_peter"
str2 <- "what_is_your_surname_peter"
I would like to apply predefined abbreviations for peter=p and name=n to
both strings
so that the new strings look like the followings:
str1: "My_n_is_p"
str2:
2010 Apr 23
2
read.csv data frame thousands separator
Dear group,
Here is my df, trades1 :
trades1 <-
structure(list(Instrument.Long.Name = c("CORN", "CORN", "CORN",
"CORN", "CORN", "SOYBEANS", "SOYBEANS", "SOYBEANS", "SOYBEANS",
"SOYBEANS", "SOYBEANS", "STANDARD LEAD USD", "STANDARD LEAD USD",
"SPCL HIGH GRAD...
2010 Apr 28
1
gsub,regex and replacing
Dear group,
I need to modify some characters in a data frame. I want to use gsub and the
regex functionalities to do this.
Here is the data frame (df):
DESCRIPTION prix quantity
1 CORN Jul/10 -1.5 0
2 CORN May/10 -1082.0 -3
3 ROBUSTA COFFEE (10) Jul/10 11084.0 8
4 SOYBEANS Jul/10 1983.5 2
5 SPCL HIGH GRADE ZINC USD Jul/10 -2464.0 -1
6 STANDARD LEAD USD Aug/10 -118.0 0
For each df$DESCRI...
2010 Jun 01
1
data frame manipulation ddply
Dear group,
Here is my data frame:
futures <-
structure(list(DESCRIPTION = c("CORN Jul/10", "CORN Jul/10",
"CORN Jul/10", "CORN Jul/10", "CORN Jul/10", "LIVE CATTLE Aug/10",
"LIVE CATTLE Aug/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11 Jul/10",
"SUGAR NO.11 Jul/10", "SUGAR NO.11 Jul/...
2010 May 11
1
merge two data frames
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 May/10", "SOYBEANS Jul/10",
"SPCL HIGH GRADE ZINC...
2010 Jun 01
1
data frame manipulation with zero rows
Dear group,
Here is the kind of data.frame I obtain every day with my function :
futures <-
structure(list(DESCRIPTION = c("CORN Jul/10", "CORN Jul/10",
"CORN Jul/10", "CORN Jul/10", "CORN Jul/10", "LIVE CATTLE Aug/10",
"LIVE CATTLE Aug/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11 Jul/10",
"SUGAR NO.11 Jul/10", "SUGAR NO.11 Jul/...
2010 May 27
1
switch function
Dear group,
Here is my df :
trades <-
structure(list(Trade.Status = c("DEL", "INS", "INS"), Instrument.Long.Name =
c("SUGAR NO.11",
"CORN", "CORN"), Delivery.Prompt.Date = c("Jul/10", "Jul/10",
"Jul/10"), Buy.Sell..Cleared. = c("Sell", "Buy", "Buy"), Volume = c(1L,
2L, 1L), Price = c("15.2500", "368.0000", "368.5000"), Net.Charges...
2010 May 11
1
merging data frame
...quot;, "prix"), row.names =
c("1",
"2", "3", "4", "5", "6", "7", "8", "9", "51"), class = "data.frame")
pose15 <-
structure(list(DESCRIPTION = structure(1:9, .Label = c("CORN May/10",
"COTTON NO.2 Jul/10", "CRUDE OIL miNY May/10", "ROBUSTA COFFEE (10) Jul/10",
"SILVER May/10", "SOYBEANS Jul/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11
May/10",
"WHEAT May/10"), class = "factor"),...
2010 Apr 28
3
data frame move columns
Dear group,
Here is my df:
avprix <-
structure(list(DESCRIPTION = c("CORN Jul/10", "CORN May/10",
"ROBUSTA COFFEE (10) Jul/10", "SOYBEANS Jul/10", "SPCL HIGH GRADE ZINC USD",
"STANDARD LEAD USD"), prix = c(-1.5, -1082, 11084, 1983.5, -2464,
-118), quantity = c(0, -3, 8, 2, -1, 0), fees = c(-8.64, -30.24,
-26.4, -...
2009 May 01
2
combine column names
Dear R-list,
Is there any way I can extract part or whole column name from two
variables and combine them? Not values, but column names.
For example,
I have data set with 70 variables. The column names are "Alfalfa",
"Corn","Soybean",..."Sunflower". After I combine the two variable (say
Alfalfa and Corn), I want to rename it as "AlfCor" or "AlfalfaCorn"
automatically not manually.
In excel, I found the function combining two texts in individual
columns using (=A1&B1,...
2010 May 26
5
(no subject)
Dear group,
Here is my data frame:
> dput(u)
structure(list(DESCRIPTION = structure(c(2L, 5L, 6L, 7L, 9L,
11L, 12L, 15L, 14L, 16L, 1L, 10L, 3L, 4L, 13L, 8L, 17L), .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 May/10", "SOYBEANS Jul/10",
"SPCL HIGH GRADE ZINC...
2010 May 11
2
Regex and gsub
...,
"CRUDE OIL miNY May/10", "GOLD Jun/10", "ROBUSTA COFFEE (10) Jul/10",
"SOYBEANS Jul/10", "SUGAR NO.11 Jul/10", "SUGAR NO.11 May/10",
"WHEAT Jul/10", "SPCL HIGH GRADE ZINC USD", "STANDARD LEAD USD",
"CORN May/10", "SILVER May/10", "WHEAT May/10", "COFFEE C Jul/10",
"CORN Jul/10", "HENRY HUB NATURAL GAS May/10"), POSITION = c(0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0), prix = c(-14,
3.74999999999997, 5.22500000000005, 21.6999999999998,...
2012 Mar 22
1
Simalteneous Equation Doubt in R
Hi List
l am interested in developing price model. I have found a research paper
related to price model of corn in US market where it has taken demand &
supply forces into consideration. Following are the equation:
Supply equation:
St= a0+a1Pt-1+a2Rt-1+a3St-1+a5D1+a6D2+a7D3+U1 -(1)
Where D1,D2,D3=Quarterly Dummy Variables(Since quarterly data are
considered)
Here, Supply equation has...
2010 Aug 04
3
merge two data frames
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 Sep/10"),...
2019 Jan 30
4
kernel boot issues
...64 boots, and is whaat I am running now
none of these, updated ones, won't boot:
2.6.32-754.3.5.el6.x86_64
2.6.32-754.6.3.el6.x86_64
2.6.32-754.9.1.el6.x86_64
2.6.32-754.10.1.el6.x86_64
They all show the same 'symptom',? grub says it is booting that kernel,
screen blanks, solid corned in the left-top corner...? and that's whee
it stays.
I know this is vague, but any ideas?
thanks,
Ron
2010 May 26
1
data frame manipulation change elements meeting criteria
Dear group,
Here is my df :
trade <-
structure(list(Trade.Status = c("DEL", "INS", "INS"), Instrument.Long.Name =
c("SUGAR NO.11",
"CORN", "CORN"), Delivery.Prompt.Date = c("Jul/10", "Jul/10",
"Jul/10"), Buy.Sell..Cleared. = c("Sell", "Buy", "Buy"), Volume = c(1L,
2L, 1L), Price = c("15.2500", "368.0000", "368.5000"), Net.Charg...
2013 Mar 06
1
print justify
Hi everyone,
I'm trying to print a table justified to the left, but it doesn't work.
Any hints?
KennArt <- data.frame(NR=c(171,172,174,175,176,177,181,411,980), TYP=c("K?rnermais",
?"Corn Cob Mix", "Zuckermais", "Mischanbau (Silo)Mais/Sonnenblumen",
?"Mais mit Bejagungsschneise in gutem landwirtschaftlichen und ?kologischen Zustand",
?"Mais mit Bejagungsschneise (Kulturpflanze)", "Hirse", "Silomais (Als Hauptfutter)",...
2004 Dec 29
2
Asterisk, she no hang uppa the phone!
I've been working on the local side of asterisk for several days, and I have
the in-house dial plan pretty well corn fingered to my satisfaction.
Today I began working on the other side to make asterisk do things like place
an outgoing call to PSTN and route an incoming call from PSTN.
I'm using a TDM11B with a single fxs and a single fxo. My analog handset is
plugged into the port that gives me the dai...
2009 Jul 15
1
Error in simulation R-code
...out <- cbind(C)
}
colMeans(out)
}
sim.sp(df2007.5k.s2,CM,1,1000)
Error in nb2listw(dist60, style = "B") : Empty neighbour sets found
And, here are my partial data and addition information just in case.
> df2007.5k.s2[1:5,]
Longitude Latitude Ring stage2 SBA corn sbn w.wit
oats afl dbn vg.frt fidle grs.pstr wdlnd nlcd.ow nlcd.dec
821 419.9678 496.3359 5000 2 0.2041200 6.873500 6.515908 5.861865
5.139832 6.260552 5.087444 0.000000 4.818602 6.897949 4.927745 7.073408
7.348551
822 440.9583 533.2685 5000 2 1.1832698 6.8298...