similar to: counting the frequencies of a vector

Displaying 20 results from an estimated 7000 matches similar to: "counting the frequencies of a vector"

2009 Jan 17
3
converting multiple variable numbers
thanks for the great help! But I have one additional question (hope I can work alone then); I want to replace the values of a vector, like this: x <- c(1,2,2,3,3,4,4,4,5,1) x[x==1] <- c(12) x[x==2] <- c(13) x[x==3] <- c(17) x[x==4] <- c(20) x[x==5] <- c(22) is there a way to do that just in one or two code lines? I tried x[x == c(1:5)] <- c(12,13,17,20,22) but that
2009 Jan 17
2
splitting a string / finding a numeric value within a string
Hi, I have this variable; x <- c("test_01.log") and I want to extract the number (01) out of the variable. So that I get; > x [1] 1 I tried strsplit, but I don't know how to refer to the result. Can someone help me with that? [[alternative HTML version deleted]]
2008 Dec 16
2
converting a data-frame by a defined rule
Hi, I have a data frame with several columns. Now I want to transfer the data into a new variable (also a data frame), but I only want a part of the data, defined by a rule ... for example; I have following data frame: row1 row2 row3 x 2 3 x 1 4 y 5 3 y 2 3 I know want a data frame, only with lines containing x in row1. I know how to do that for one row (f <-
2009 Jan 12
2
writing an own function - is.factor
Hi, I try to write an own function in R. I want a summary table with descriptive statistics. For example, I have this data.frame: d <- data.frame(c(rep("m",5), rep("f",5)), c(1:10)) names(d) <- c("x", "y") d x y 1 m 1 2 m 2 3 m 3 4 m 4 5 m 5 6 f 6 7 f 7 8 f 8 9 f 9 10 f 10 now I want to get the mean and
2009 Jan 17
5
changing a range of values
Hi, If I have following vector; x <- c(1,1,1,2,2,3,4,4,5) and I want to change values in the range of 1 to 3 into the value 1, how can I do that? I tried x[x == c(1:3)] <- c(1) but than I get; x [1] 1 1 1 2 1 1 4 4 5 R doesn't change the 2 into a 1. But why?
2008 Jul 29
3
placing a text in the corner of a plot
Is there an easy way to add a text into an R-plot and place it in the upper left corner? Like that: -------------------------------- | (a) | | | | | | | | | | |
2008 Sep 29
4
histogram-like plot with two variables
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2009 Jan 17
2
data.frame: how to extract parts
Hi, I have a problem with the R syntax. It's perhaps pretty simple, but I don't understand it ... I can extract a column from a data.frame with the following code for example ... b$row1[b$row1 == "male"] so I see all male-entries. But I cannot extract all lines of a data.frame depending on this criterium; only.male <- b[b$row1 == "male"] With that, I
2009 Jan 18
2
distance between plot-region and main-title / saving plot as pdf
Hi, is there a way to increase the distance beween the plot (or plot- region) and the main-title? I haven't found anything via ?par(). Thanks for any help!
2009 Jan 22
2
plot: abline() - define line length
Hi, is there a way to define, that a line drawn via abline() should only go from for example -2 to 1 on the x-axis (with something working similiar to xlim()) ? thanks for any help!
2009 Feb 13
2
second axis title orientation
Hi, I have added a second y-axis via axis() to a plot. Then I tried to add an y axis title. But the axis() function seems to have no argument like ylab. and if I add a title with title() the text is centered at the first axis, not the second defined one. Is there a way to add an axis-title that orientates it's position at the last defined axis?
2009 Jan 11
1
boxplots: yaxp does not work
Hi, I'd like to change the y-tickmarks of a boxplot. But it doesn't work with yaxp (like I would do it in a plot-function). Can someone help me out?
2008 Aug 10
1
box-plot without a box surrounding the plot
Hi, I want to draw a boxplot and I want to get rid of the surrounding box. So that there are only the axis lines left on the bottom and on the left. I tried a litte bit with box() but I dont get it the way I want. Can somebody help me out?
2008 Aug 10
1
customizing the axis (adding labels)
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2008 Dec 16
1
refer to next line within a data-frame an select cases
Hi, I have a problem sorting and selecting entries within a data-frame and I don't know if it is possible to solve it with R ... (probably yes, but I have no idea how). Following Data; row1 row2 a 12 pos NA a 3 neg NA a 5 neg NA a 11 pos NA I want to extract the values in row 2 in the lines with an "a" in row1. But I want to have two vectors: vector x with all
2009 Feb 08
1
sub() with "+" - invalid regular expression
Hi, can someone help me; I don't understand why this code doesn't do what it's supposed to do; x <- c("F+", "F+") x <- sub("F+", "F", x) x [1] "F+" "F+" (I want "F" "F") when I try this; x <- c("F+", "F+") x <- sub("+", "", x) x I get an error
2012 Jun 20
3
[LLVMdev] Is Loop Dependence Analysis Printing Correct Stats?
Hi; I was playing with the -lda pass of LLVM on the following program- #include <stdio.h> void main() { int a[10]; int i; for(i = 0; i < 4; i ++) { a[i] = a[i-1]+1; } } I run the following commands - clang a.c -emit-llvm -S opt -analyze -stats -lda a.s The output is - Printing analysis 'Loop Dependence Analysis': Loop at depth 1, header block: %for.cond Load/store
2012 Oct 04
4
barplot with some 0 frequencies
Hi all, I am back with a new question ! I recorded the occurence of 4 differents event on 20 places for a given time period. Now, I want to do some barplot of the frequency of theses events for each place, so it should be easy. My problem is that I want to see the frequencies of the 4 events on my barplots even if the frequency of some of them is 0. How could I do that ? Thanking you in advance
2012 Jul 02
4
how to do a graph with tree different colors??
hi i try to do a graph of a time series which shows in red the values > -0.05, in blue the values >0.05 and in white the values between -0.05 and 0.05 for un exemple :http://www.appinsys.com/globalwarming/enso.htm thanks !!!!! denisse -- View this message in context: http://r.789695.n4.nabble.com/how-to-do-a-graph-with-tree-different-colors-tp4635206.html Sent from the R help mailing
2012 Jun 20
0
[LLVMdev] Is Loop Dependence Analysis Printing Correct Stats?
> From: llvmdev-bounces at cs.uiuc.edu [mailto:llvmdev-bounces at cs.uiuc.edu] On Behalf Of Arnamoy Bhattacharyya > Subject: [LLVMdev] Is Loop Dependence Analysis Printing Correct Stats? > for(i = 0; i < 4; i ++) > { > a[i] = a[i-1]+1; > } > Am I doing anything wrong or the code seems buggy? Your code is buggy. The first time through the loop, you're referencing