search for: madrazel

many languages have shorthands for that operation like: variable += 1 or ++variable is there something like that in R ? -- View this message in context: http://r.789695.n4.nabble.com/increase-or-decrease-variable-by-1-tp3076390p3076390.html Sent from the R help mailing list archive at Nabble.com.

x= c(1,5,7,-3,4) y= c(2,4,-5,2,5) plot(x,y,ylim=c(-20,20),xlim=c(min(x),max(x)),pch='X',col = rgb(0, 0, 0, 0.5),yaxt="n", ann=FALSE) and this code produces: http://i53.tinypic.com/ffd7d3.png Where I marked in red areas that I want to get rid of and use as much real screen estate as I can. -- View this message in context:

I got simple x,y pairs of data and simple scatterplot and just cannot figure how to do it , there are many examples but always there is error popping out please show me an example stripped with additional data just core of what I need to do to get this damn line -- View this message in context:

I have got a list with 3 colums x,y,z, now I want do delete whole rows where column z has NA values I am not intereted in x and y columns if there are also NA values or not, moreover I do not want to touch them because if there would be NA that would mean a more serious error for me, and I have cath for that somewhere else I am asking because I only saw an example where function loops over all

for example I have matrix with two columns x,y 1,0.56 2,9.55 2,7.56 5,2.55 5,0.56 3,0.55 2,0.56 2,1.56 so I need to take average from y values placed where x==2 -- View this message in context: http://r.789695.n4.nabble.com/how-to-make-partial-mean-of-a-matrix-only-when-second-value-matching-some-logic-tp3078449p3078449.html Sent from the R help mailing list archive at Nabble.com.

I know that by setting alpha to for example col = rgb(0, 0, 0, 0.1) it is possible to see how many overlapping is in the plot. But disadvantage of it is that single points are barely visible on the background. So I wonder if there is possible to make setting that single points would be almost black, but with more and more data on the same spot it would get more and more whiteish. Or maybe it is

In datamatrix[, "y"] == datamatrix[, "y"][-1] : longer object length is not a multiple of shorter object length out = c(FALSE,datamatrix[,'y'] == datamatrix[,'y'][-1]) and I do not know why I get that error, the resulting out matrix is somehow one row larger than datamatrix... all I try to do is filter matrix by dropping rows where [,'y'][-1] ==

consider this matrix: [,1] [,2] [1,] 3 7 [2,] 6 5 [3,] 7 5 [4,] 3 5 [5,] 7 5 [6,] 5 5 [7,] 8 4 [8,] 2 4 [9,] 7 4 [10,] 0 6 I need to delete all rows where column 2 above and below has the same value, so the effect would be: [,1] [,2] [1,] 3 7 [2,] 6 5 [6,] 5 5 [7,] 8 4 [9,] 7 4 [10,] 0 6

I know little of statistics and have created this function out of intuition. But since this algorithm is so basic I wonder what is the proper name of this function and is it build in R. here is some code in PHP to illustrate what the function is doing, it uses some function I created but the meaning is obvious: #get csv file and interchange rows with columns to get two arrays $csv =

I have tried quit(), and return() but first exits from whole graphical interface and second is only for functions. What I need only to exit from current script and return to the console. -- View this message in context: http://r.789695.n4.nabble.com/beginner-simple-keyword-to-exit-script-tp3052417p3052417.html Sent from the R help mailing list archive at Nabble.com.

...datasets on PC (Stephen Liu) 164. Re: Calculating correlation (Tal Galili) ---------------------------------------------------------------------- Message: 1 Date: Mon, 22 Nov 2010 06:29:34 -0500 From: Mike Marchywka <marchywka at hotmail.com> To: <jdnewmil at dcn.davis.ca.us>, <madrazel at interia.pl> Cc: r-help at r-project.org Subject: Re: [R] "unexpected numeric constant" while reading tab delimited csv file Message-ID: <BLU113-W14BF3EA0E3821E3C0CA8AEBE3D0 at phx.gbl> Content-Type: text/plain; charset="iso-8859-1" --------------------------...

so it could be zero in both cases when given column has 0 set in it -- View this message in context: http://r.789695.n4.nabble.com/how-to-find-smallest-non-negative-and-biggest-non-positive-number-in-a-matrix-column-tp3077870p3077870.html Sent from the R help mailing list archive at Nabble.com.

code: x <- rnorm(32) y <- rnorm(32) plot(x,y) lines(lowess(x,y),col='red') Now I need to sample the lowess function into matrix where one series will be X and other will be values of lowess at particular X. -- View this message in context: http://r.789695.n4.nabble.com/how-to-sample-lowess-loess-into-matrix-tp3053458p3053458.html Sent from the R help mailing list archive at

round() function affects all values of a matrix, I want only to round column that is called 'y'. -- View this message in context: http://r.789695.n4.nabble.com/how-to-round-only-one-column-of-a-matrix-tp3054363p3054363.html Sent from the R help mailing list archive at Nabble.com.

my csv file is very simple - just one line for purpose of this test: 0{TAB}0 and read function is this: csvdata = read.csv(file="d:/s/test.csv",head=FALSE,sep="\t") then error comes: Error in source("d:/test.csv") : d:/test.csv:1:9: unexpected numeric constant 1: 0 0 but when I change delimiter to ; (colon) then error not shows up anymore -- View this

I have created a density line d<- density(X) now I need to read values from that line for example what is the value of this line at x = 1, 2, 3 etc... -- View this message in context: http://r.789695.n4.nabble.com/how-to-get-vector-of-data-from-line-tp3076943p3076943.html Sent from the R help mailing list archive at Nabble.com.

code: op <- par(bg='black',fg='gray',col='gray',col.axis='gray',col.lab='gray',col.main='gray',col.sub='gray',mai=c(0,0,0,0), tck = 0.01, mgp = c(0, -1.4, 0), mar=c(0,0,0,0)) plot(x,y,ylim=c(-20,20),xlim=c(min(x),max(x)),pch='X',col = rgb(1,1,1, 0.5),yaxt="n", ann=FALSE) abline(v=c(min(x),max(x)), lty=3,