rm(list=ls())
2012/2/19 sagarnikam123 sagarnikam...@gmail.com
i have variables stored in previous history,next time i log in, load
previous history,i want to use same variable name for using other values,
i don't know exactly how many are they ? their names also..
How to delete all
Hi Joel,
to replace the colnames:
colnames(dataframe - )gsub(X,,colnames(dataframe))
to order by colnames:
dataframe - dataframe[,colnames(dataframe)]
Alfredo
2012/2/17 Joel Fürstenberg-Hägg jo...@life.ku.dk
Dear all,
I have a data frame in which the columns need to be ordered. The
Hi,
could you paste the results?
Alfredo
2012/2/12 Suranga Kasthurirathne suranga...@gmail.com:
Hi everyone,
I'm an R newbie working with the poLCA module. I achieved my target without
having to bother anyone, but It seems that I've got stuck at the last
minute.
My problem is simple. I
Hi,
I need to make a cluster classification by the unique values of the data frame.
I explain the problem. I need to classify this table, and assign to
the same cluster each row that has the same combination of value:
data1
layer_1 layer_2 layer_3
[1,] 0.246000 2
Hi,
I've a data frame like this:
as.data.frame(cbind(rnorm(1:12),rnorm(1:12)))
V1 V2
1 -1.30849402 -0.52094136
2 0.96157302 0.76217871
3 -0.44223351 -1.72630871
4 -0.10432438 -1.04732942
5 -1.38748914 0.95877311
6 -0.63965975 0.65494811
7 -0.24058318 0.19496830
Hi,
I've a list of list.
I want to extract an element by the rownames.
I can extract it by:
data[[1]][[1]][[4]][1]
But I want to exctract it by a command like this:
data[[1]][[B0]][[smac]][[cont]][1]
It's possible?
Thanks,
Alfredo
str(data)
List of 1
$ :List of 4
..$ :List of 4
Exist any function to associated with paste make this result more
automatically.
you can try with gsub.
Alfredo
2011/4/8 Ronaldo Reis Junior chrys...@gmail.com:
Hi,
I have a very simple doubt.
Look:
teste - c(A,B,C)
teste2 - paste(teste[1],teste[2],teste[3],sep=+)
teste2
[1]
Hi,
a - 4
a*0.2
[1] 0.8
ok!!
Is there a method to obtain this:
a*0.2
[1] 0.80
I need to round the number also with the zero.
Thanks in advance,
Alfredo
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PLEASE
Hi,
I'm using the Cp and Radj method for the selection of variable, with the
library leaps.
I need to save the best model in a file.
If I use the adjr2 method it's work, but I've a problem with Cp method:
adjr - leaps(x,y,method=adjr2)
maxadjr(adjr)
12312
0.713 0.56
ok...
but whit Cp
Hi,
I've three values. What is the best method to choice the lowest values
with an if function?
example:
a = 3
b = 1
c = 5
if (lowest(a,b,c) is a) {}
if (lowest(a,b,c) is b) {}
if (lowest(a,b,c) is c) {}
Thanks,
Alfredo
Hi,
I'm using gsub, but I've a problem.
print(i)
[1] piante_venere.csv
gsub(\\.csv$, , i)
[1] piante_venere
gsub(^piante_, , i)
[1] venere.csv
Can I combine the two expressions?
Like this:
gsub(.)
[1] venere
Thanks,
Alfredo
--
View this message in context:
Hi,
I've this dataframe:
V1 V5 V6
1 MOD13Q1_249 0.1723 A1
2 MOD13Q1_249 0.1824 B1
3 MOD13Q1_249 0.1824 C1
4 MOD13Q1_249 0.1774 A2
5 MOD13Q1_249 0.1953 B2
6 MOD13Q1_249 0.1824 C2
7 MOD13Q1_265 0.1921 A1
8 MOD13Q1_265 0.1938 B1
9
, sort = FALSE)
sapply(unique(union(names(data1), names(data2))), function(n)Reduce('+',
m[grep(n, names(m))]))
On Wed, Jan 20, 2010 at 10:59 AM, Alfredo Alessandrini
alfreal...@gmail.com wrote:
Hi,
I've this dataframes:
data1
1 2 3 4 5 6
Hi,
I've this dataframes:
data1
12 3 4 56
50.4963017 0 0 0.2481509 1.9852069 0.4963017
10 0.000 0 0 0.000 0.6317266 0.000
15 0.000 0 0 0.000 0.000 0.000
20 0.000 0 0 3.3955301 0.000
Hi,
I've a problem with unmatched quotes with a bash script within a R script:
system(awk 'NR2 {FS=
;print$1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12;}'
phenology.txt)
Errore: unexpected string constant in system(awk 'NR2 {FS= ;print$1
Alfredo
__
Hi,
I've this time series:
ts_evi
Time Series:
Start = c(2000, 4)
End = c(2002, 7)
Frequency = 23
[1] 0.1948306 0.1930461 0.1905792 0.1848909 0.1893624 0.1811400 0.1678140
[8] 0.1750714 0.3100132 0.3495946 0.4103353 0.4973740 0.4937490 0.4031435
[15] 0.3503787 0.2755022 0.2304617 0.2284854
Hi,
I've two data.frame: ind_comp and dati_area
ind_comp
INDEXindice
1 1 0.3081856
2 2 0.1368007
3 3 0.1290952
4 4 0.2905484
5 5 0.2686706
6 6 0.1122784
7 7 0.4493264
8 8 0.1932665
9 9 0.1982783
1011 0.3724666
dati_area
X_COORD
Hi,
I've two dataframe:
snag_totale
AREA snag_ha
12 1.628128
23 10.274249
34 2.778503
45 73.764307
57 12.015985
log_totale
AREAlog_ha
11 22.29846
22 17.16889
33 48.80377
44 144.18996
55 70.30962
66 61.81850
77 13.24876
How can
Hi,
I've a vector like this:
--
inc[,5]
[1]NANANANANANANA
[8]NANANANANANANA
[15]NANANANA
Hi,
I've a vector like this:
inc
[1]NANANANANANANA
[8]NANANANANANANA
[15]NANANANANANANA
[22]NANA
Now is ok...thanks.
Alfredo
2009/6/23 Alfredo Alessandrini alfreal...@gmail.com:
I've the NA value also between the value of the vector:
inc
[1] NA NA NA NA NA NA NA
[8] NA NA NA NA NA NA NA
only the first value, in this case: inc[82].
Regards,
Alfredo
2009/6/23 Henrique Dallazuanna www...@gmail.com
Try this:
which(diff(is.na(inc)) 0)
On Tue, Jun 23, 2009 at 11:00 AM, Alfredo Alessandrini alfreal...@gmail.com
wrote:
Hi,
I've a vector like this:
inc
[1
A simple question :-)
I'm writing a R scritp(#!/usr/bin/Rscript)
How can execute a bash command inside the script, like the command for
change the directory (cd)?
Thanks in advance,
Alfredo
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Hi,
I've this data.frame:
dia
X1006109F X1006110F X1006111F X1006112F X1006113F X1006114F X1006115F
1NANANANANA45NA
X1006116F X1006117F X1006118F X1006119F X1006120F X1006122F X1006123F
145NANANA
Hi,
How can I join two string?
frequency = 15
I want join the number frequency with a string.
Alfredo
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PLEASE do read the posting guide
I'm trying to replace NA with 0 value...
I've write a loop, but don't work...
Where's the problem?
cimfasy_rwl
1991 0.92 0.72 0.50 1.29 0.54 1.22
1992 2.15 1.28 1.23 2.26 1.22 3.17
1993 1.50 0.87 1.68 1.97 0.83 2.55
1994
Don't use a loop for this. Do this.
I need to use a loop...
I've many data.
Alfredo
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and
for (i in files_rwl) {
thisfile - get(i)
thisfile[is.na(thisfile)] - 0
assign(i, thisfile)
}
It's likely that you could condense it, but using the long form makes it
clear what's happening.
..it's work
Thanks...
Alfredo
I recommend avoid loop in this case
I'm working with many files...
I must utilise a loop necessarily.
And you shall know that R is pretty smart in handling missing values. How
do you know after change NA - 0 that 0 is from NA and not
like in 1994 row and second column.
This isn't a
I'm trying to make a loop with many files...
library(dplR)
files - system(ls *.rwl, intern=TRUE)
files
[1] cimfasy.rwl rocquce.rwl
for (i in files) {a - read.rwl(i,header=0)}
There are 70 series
There are 21 series
class(a)
[1] data.frame
This loop import all the files rwl in a single
have you read the docs?
Yes, I'm reading the manual An Introduction to R..
start with ?`[`
Ok...I haven't read it.
Thanks.
Alfredo
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PLEASE do read the posting guide
Hi,
With this data.frame:
class(rwl)
[1] data.frame
rwl
0028002F 0028013F 0028032F
1833 3.39 NA NA
1834 3.09 NA NA
1835 3.05 NA NA
1836 3.31 NA NA
1837 2.26 NA NA
colnames(rwl)
[1] 0028002F 0028013F 0028032F
I've a matrix like this:
1985 1.38 1.27 1.84 2.10 0.59 3.47
1986 1.05 1.13 1.21 1.54 0.21 2.14
1987 1.33 1.21 1.77 1.44 0.27 2.85
1988 1.86 1.06 2.33 2.14 0.55 1.40
1989 2.10 0.65 2.74
2008/6/18 Alfredo Alessandrini [EMAIL PROTECTED]:
I've a matrix like this:
1985 1.38 1.27 1.84 2.10 0.59 3.47
1986 1.05 1.13 1.21 1.54 0.21 2.14
1987 1.33 1.21 1.77 1.44 0.27 2.85
1988 1.86 1.06 2.33 2.14
i guess you mean columnwise cumsums computed starting from the bottom up?
yes
then this should do (given that your data is in matrix m, and years are
row labels, not data):
rc = nrow(m)
cumsums = apply(m[rc:1,], 2, cumsum)[rc:1,]
ok...work very well..
data
1987 1.33 1.21
Hi everybody,
I've a data.frame d like this:
0 2468 10 12 14 16 X0 X2
X4
1945 350 NA NA NA NA NA NA NA NA 0.3848451 0.000 0.000
1946 408 NA NA NA NA NA NA NA NA 1.4202009 0.000 0.000
1947 511 NA NA NA NA
# set X's colnames to match d's
colnames(X) - colnames(d)
# Now rbind()
rbind(d, X)
thanks,
it's work...
Alfredo
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Hi everybody,
If I've a data frame like this:
dataframe a
X0 X2 X4 X6 X8 X10 X12 X14 X16
1957 0 0 0 0 0 0 0 0 0
1958 0 0 0 0 0 0 0 0 0
1959 831 0 0 0 0 0 0 0 0
1960 544 282 0 0 0 0 0 0 0
1961 446 365 0 0 0 0 0
Hi,
how can I replace NA value with 0:
1991 217 119 103 109 137 202 283 240 146 NA
1992 270 174 149 144 166 239 278 237 275 NA
1993 146 111 104 89 98 131 153 148 175 NA
1994 177 123 146 124 121 200 266 191 240 106
1995 145 98 95 89 95 130 183 161 164 129
1996 145 98 89 90 93
Hi,
If I have this values:
21
23
14
58
26
How can I sum the values by a progression like this:
(21)
(21 + 23)
(21 + 23 + 14)
(21 + 23 + 14 + 58)
(21 + 23 + 14 + 58 + 26)
(21 + 23 + 14 + 58 + 26)
I've try with the function loop
Best Wishes,
Alfredo
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