search for: pavlic

Displaying 18 results from an estimated 18 matches for "pavlic".

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2013 Feb 16
7
Passing R code from webpage
Hi all, Is there a way to pass R code from web page (html file) to do some statistics and than plot the output in web browser. I am looking forever at this, and cant find a way. Regards,m -- View this message in context: http://r.789695.n4.nabble.com/Passing-R-code-from-webpage-tp4658800.html Sent from the R devel mailing list archive at Nabble.com.
2011 Apr 30
4
QQ plot for normality testing
Hi all, I am trying to test wheater the distribution of my samples is normal with QQ plot. I have a values of water content in clays in around few hundred samples. Is the code : qqnorm(w) #w being water content qqline(w) sufficient? How do I know when I get the plots which distribution is normal and which is not? Thanks, m [[alternative HTML version
2011 Jul 13
3
adding text to spplot
hi all, I have a plot to which i would like to add text labels. And i cant find a way...here is the code : enaD2<-idw(D2~1, loca=dva, newdata=grd) pts = list("sp.points", dva, pch = 20, cex=1.5, col = "darkred spplot(enaD2, "var1.pred",sp.layout=pts, main = "globina 60 cm", sub="D2",
2011 May 04
1
scatter plot with Z value
Hi all, I would like to create a scatter plot of two variables (y, x) whith third value (z) written on the plot? After that i would like to add a line (Y=0.7*(x-20)) to the graph. I tried plot(x~y) but there is no command for the third vairable to be shown on the graph also i can't find a way to add a Y=x*(0.7-20) to the chart. Thanks, m [[alternative HTML version
2011 May 02
3
subseting data
Hi, Is it possible (i am sure it is) to subset data from a data.frame on the basis of SQL >LIKE< operator. I.e., i would like to subset a data where only values which contains a string >GP< would be used? Example: Gp<-subset(DF, DF$USCS like >GP<) This like of course is not working, Thanks, m [[alternative HTML version deleted]]
2010 Nov 20
1
Zerodist
Hi all, I got the >"chfactor.c", line 130: singular matrix in function LDLfactor() Error in predict.gstat(g, newdata = newdata, block = block, nsim = nsim, : LDLfactor< Error, probably because there are some point pairs with zero distance in the matrix. My question is, how can i delete these duplicate nodes from the data set? Thanks, m [[alternative
2011 Nov 28
1
Comparing data
Hi all, i have a data set cintaining 14 columns and 11 rows. Rows represent single point and columns represent the parameter measured. I wiuld like to compare the data to see which are more alike. I used the cluster analysis, but now i ma wondering if there are some other methods, since the cluster analysis did not give me the result i like. I tried to use factanal() for factor analysis
2010 Nov 02
1
splitting First 10 words in a string
...Republic of Slovenia Irrelevant P.S. Long ago, before embarking on what eventually ended mainly in statistics, I did two years of geology, so (and also because of knowing what the poster's institute does) I even kinda imagine what these data are. "Matev¾ Pavliè" <matevz.pavlic@gi-zrmk.si> wrote in message news:AD5CA6183570B54F92AA45CE2619F9B9D96994@gi-zrmk.si... Hi, I am sorry, will try to be more exact from now on... I have a data.frame with a field called Opis. IT contains sentenses that I would like to split in words or fields in data.frame...when I say...
2010 Nov 01
1
spliting first 10 words in a string
Hi all, I have a columnn with text that has quite a few words in it. I would like to split these words in separate columns, but just first ten words in the string. Is that possible in R? Thank you, m [[alternative HTML version deleted]]
2010 Nov 03
1
deleteing all but some observations in data.frame
Hi, I am sure that can be done in R.... How would i delete all but let say 20 observations in data.frame? Thank you, M [[alternative HTML version deleted]]
2010 Nov 07
0
multiple regression analysis
Hi all, This is more a help on ideas that on actuall R code. Those of you which are geologist or work with boreholes woudl understand that i would like to achieve. I'll tr to explain as good as I can...so here it goes.. I have around 1000 geomechanical (geological) borehole logs in a database. The logs contain staial info, lithology and some laboratory data. My initial goal is
2011 May 21
1
DocumentTermMatrix error
...error : Error in tolower(txt) : invalid input 'PROD Z LAHKO GNETNO MELJNO GLINO, ... in 'utf8towcs' I tried doing this as it is showed in : http://www.r-project.org/doc/Rnews/Rnews_2008-2.pdf (An Introduction to Text Mining), with this R code : setwd("C:/Users/mpavlic/Desktop/temp") tekst <- Corpus(DirSource(".")) >Warning message: >In readLines(y, encoding = x$Encoding) : >incomplete final line found on './test.txt' meta(tekst, "Heading", "local") <- c("test") meta(tekst[[1]]) >Ava...
2011 May 22
0
tm package, makeChunks
Hi all, i have a question about a makeChunks function from tm package. I have a text with constructed with a SQL qurey consisting of several rows in a table. The texts should be around 1000 lines but is now one long line of text. My question is : Does this matter in makeChunks() functions of tm package ( i think it does- according to my simple tests)? If so, how can I make a text
2011 May 25
0
text mining - text comparing
Hi all, I'll try to explain what i would like to achieve. I have two problmes that i would need help on if someone has a clue. 1.) I have a TXT file containing two fields : USCS and Description. For each field of USCS I have a field Descrition that contained a lot of words that describe that particular USCS type. What i would like to do is tomine the text using tm
2011 Jun 07
1
R results explanation
Hi all, this might be a stupid question, but still. Everytime i find some new function it's prettty easy to understand how to use the syntax and to perform a text. Even the general idea of what the function does is pretty easy to understand, but i can not find an explanation (detailed explanation) of the R output for each function. For example, a function fitdistr() in MASS package i
2011 May 20
1
DocumentTermMatrix - text minig
Hi All, I have a Data.frame that looks like that one below. I would like to do some text mining on it to possibly find some patterns between Opis, ACklasifikacija and Vodja. I looked over a tm package which loks promissing, more specifically DocumentTermMatrix or TermDocumentMatrix. But I can not figure out how to change my data from data.frame to Corpus or VCorpus. Globina
2010 Nov 02
2
count different words in a field
Hi all, I started to ask this in the other post, but it is off topis...so here it is again. I have a data.frame (created with the helpof this mail list) that looks like this : 'data.frame': 22801 obs. of 15 variables: $ V1 : chr "HUMUS" "SLABO" "MALO" "SLABO" ... $ V2 : chr "IN" "GRANULIRAN"
2012 May 28
6
importing multiple file form folder
Hi all, I have a set of files (which is growing) in a folder. The files are text files... The form of files is such : ...with numbers for Length (m) going up to 2000 ... Anyway...i just need the data from first two columns (length (m) and Temperature (C)), and no data before that... This Lenght (m) values are always the same. My final dataset should lokk like this : column 1 as Length(m) ;