similar to: problem with pattern matching

Dear all, I wanted to remove all punctuations except commas from a string. I used: gsub("[[:punct:]]", "", string) but I don't know how to exclude the commas ",". Anyone would kindly answer my basic question? -- View this message in context: http://www.nabble.com/Remove-all-punctuations-except-commas-tp24845721p24845721.html Sent from the R help mailing list

dear all, I have two dataframes dataframe1 ID a b c dataframe2 ID value a;W 100 X;c 200 Y;Z 300 I wanted to match the IDs from the two dataframes and record the values into a new column of dataframe1 at the corresponding rows. This is what I expect: dataframe1 ID value a 100 b c 200 I tried doing it like this: for (i in seq(1:nrow(dataframe1))) {

Greetings, I have what I hope is a simple question. I would like to change my contour interval on the vis.gam( plot.type="contour") in the mgcv package. Is this a situation where I need to modify the function or is there a default value I can change? Thanks

Dear all, When I loaded a dataset (a txt file), which is structured in a tabular format, to R by using read.delim, I found some rows were missing. The column number was correct. These missing rows are no apparently different from the other rows, and for some unknown reasons these missing rows scattered among the last 50 rows of the dataset. Then after I tried to open this txt file in Excel and

Hi, Is there any equivalent for ifelse (except if (cond) expr1 else expr2) which takes an atomic element as argument but returns vector since ifelse returns an object of the same length as its argument? x = c(1,2,3) y = c(4,5,6,7) z = 3 ifelse(z <= 3,x,y) would return x and not 1 thanks

dear all, could somebody tell me how I can plot mild outliers as a circle(?) and extreme outliers as an asterisk(*) in a box-whisker plot? Thanks very much in advance -- View this message in context: http://www.nabble.com/mild-and-extreme-outliers-in-boxplot-tp25040545p25040545.html Sent from the R help mailing list archive at Nabble.com.

Is there a command for partial matching of character strings? Specifically, I'd like to be able to calculate the mean of the values in any columns in a data frame or matrix that have identity in part of their column names. For example, columns labeled "mpw06a" and "mpw06b" match on the first five characters; their mean would be taken whereas any columns beginning with

this is from my extensions.conf, the first three patterns are for toll-free numbers, and fourth pattern is for other numbers, where an AGI is called for authentication. now when I dial 011448000664327 if falls into the fourth pattern, where as it should be matched by the first pattern. Any suggestions 1 - exten => _01144800XXXXXXX,1,Dial(${MAG}/${EXTEN:3},45,tT) 2 - exten =>

Dear all, I'm looking for a function comparable to switch, to categorize a continuous variable in a few levels. Off course that can be done with a series of ifelse statements, but that looks rather clumsy. I looked at switch, but couldn't figure out how to use it for this. I guess that's not possible, as it only works with characters or integers, not with intervals. Basically,

dear all, This is a probably a silly question. If I type > grep("x",c("a.x" ,"b.x","a.xx"),value=TRUE) [1] "a.x" "b.x" "a.xx" Instead, I would like to obtain only "a.x" "b.x" How is it possible to get this result with grep()? many thanks for your attention, best, vito --

Dear R-helpers, I am very new to R and trying to run the conditional logit model using "clogit " command. I have more than 4000 observations in my dataset and try to predict the dependent variable from 14 independent variables. My command is as follows clmtest1 <- clogit(Pin~Income+Bus+Pop+Urbpro+Health+Student+Grad+NE+NW+NCC+SCC+CH+SE+MRD+strata(IDD),data=clmdata) However, it

Hi all, Is there a quick way to display or recall data points from a specific region on the plot? For example I want the points from x>5 and y>5? Thank you very much! -- Edward Chen [[alternative HTML version deleted]]

I need to import several ascii files in fixed format with two different record types. The data comes from European Labor Force Surveys, wich is a household survey. The first record type is for people over 16 years, and the second much sorter is for people aged 15 or less (this record has a filler with several blanks to get the same record length). The files tipically have 160000 records, with 176

Hi all, I''ve got a simple contingency table produced with table(), and the upper and lower quartiles (quantile25 and quantile75) for the same dataset. Is there a function that tells me in which category does the value of the quartile falls into? for example: tabsp <- table(fam$I[fam$I>0]) 1 3 6 6 1 1 and for the cumulative frequency distribution tabcum <- cumsum(tabsp) 1 3

Dear all, I have querry on how to extract the data by matching between two data set where one has the same elements multiple times?   For example, I have two matrix X and Y. > X    [,1]    [,2]       [,3] 1  A     5          P 2  B      6         P 3  C     7         P 4  D     5         Q 5  E      6         Q 6  F      7         Q 7  G     5          R 8  H     6          R 9  I       7

Hi all, I used dotplot to draw a graph for a dataset with size of 100. Since the x-axis are all texts, so they are mixed up and not readable. Is there any way to make it readable or how can I add labels to all the points with its (x,y) coordinates? Thanks for your help. Best, Tony [[alternative HTML version deleted]]

I have a problem where I have two columns of data that I can simply plot using: plot(wV[0:15,3],wY[0:15,3]). This produces my desired plot. Now, say I have a third variable that I would like to introduce and use that variable to set different colors in the plot In this case, say I wanted values greater than 0 to be "blue" and values less than 0 to be "red" Basically, my

Hello, I am doing a simple if else statement in R. But it always comes out error such as 'unexpected error' There are two variables. ini and b. when ini=1, a=3; when ini>1 and b>2, a=5; all other situations, a=6. I don't know where it is wrong. Here is my code ini=3 b=4 if (ini==1) { a=3 } else if (ini>1 and b>2 ) { a=5 } else {a=6} Thanks a

Hi, I'm quite new using R and have got no one to help me get through it. Hopefully someone can help me with one problem I've been struggling with for the last hours!! (Sorry if I'm using the wrong terminology as well!) I have a data matrix in which SIE is one of my variables. What I need to do now is to create a new variable (group) if a certain condition in SIE is met. I tried:

Hi list, I have problems with the as.numeric function. I have imported probabilities from external data, but they are classified as factors as str() shows. Therefore my goal is to convert the colum from factor to numeric level with keeping the decimals. I have googled the problem for a while now and kept to several advices like