similar to: Simple loop

Hi I have the following formula (I hope it is clear - if no, I can try to do better the next time) h(x, a, b) = integral(0 to pi/2) ( ( integral(D/sin(alpha) to Inf) ( ( f(x, a, b) ) dx ) dalpha ) and I want to do an mle with it. I know how to use mle() and I also know about integrate(). My problem is to give the parameter values a and b to the

I am attempting to add a calculated column to a data frame. Basically, adding a column called "newcol2" which are the stock closing prices from 1 day to the next. The one little hang up is the name of the column. There seems to be an additional data column name included in the attributes (dimnames?). So when i run HEAD(DATAFRAMENAME) i get the column name = "Open". but

I am finding complex analyses easier than some elementary operations in R. In particular I want to do some low level exploratory data analyses with data in a data frame but cannot find commands to easily insert, remove (delete), rename, and re-order (arbitrarily, not sort) columns. I see that the micEcon package has an insertCol command, but that is for matrices, not data frames. I have looked

Hi, Does anyone know of a function in R that can handle a fractional variable as the dependent variable? The catch is that the function has to be inclusive of 0 and 1, which betareg() does not. It seems like GLM might be able to handle the fractional logit model, but I can't figure it out. How do you format GLM to do so? Best, Rachael [[alternative HTML version deleted]]

I'm coming out with all the classic problems today ;-) Can anyone tell me how to change the column names of an already existing data frame? I've read the docs for ?data.frame and ?as.data.frame but can't figure it out. I want to make a new data.frame from some of the columns of an existing data.frame, but when I do that, the new data.frame columns have the same names as the old

Hello, One more question.. I have the data.frame "pop": xloc yloc gonad ind Ene W Area 1 23 20 516.74 1 0.02 20.21 1 2 23 20 1143.20 1 0.02 20.21 1 3 23 20 250.00 1 0.02 20.21 1 4 22 15 251.98 1 0.02 18.69 2 5 22 15 598.08 1 0.02 18.69 2 6 21 19 250.00 1 0.02 20.21 3 7 22 20 251.98 1

Hello R-help, I'm trying to make a fairly simple plot axis that goes something like this: plot(-10:10,-10:10, yaxt='n') axis(side=2, las=1, hadj=1, tck=-.01, cex.axis=.6) ...but as you can see, the labels are not close enough to the y-axis (where I want them... to save space for publication). Can anybody help me figure out how to move these labels over the the right a bit?

I would like to create a certain number of dataframes out of one dataframe where each of the dataframes is related to a factor. This should be possible with a loop or a function, as is very clumsy to do it manually when there are quite a lot factors. For example having a dataframe called "exmpl": Site Value 1 12 1 15 1 18 1 21 1 12 1 13 2 15 2 12 2 58 2 62 2 22 2 65 2 29 3 21 3 55

Hi, The following script (which I did not develop) is used to calculate and plot a skewed normal curve. The script currently requires the user to input six parameters, rather than reading these directly from a file. I've been spinning wheels here, trying to figure out how to modify the script to automate it. I have four data sets, each in excess of 300 records that I need to process. My

Hey list, Does anybody knows a command to centre the tick mark labels exactly between the tick points (right shift)? And then to exclude the last tick label on the right? I know one can shift them using the 'hadj' option in par. But I am wondering if there is a more convenient command! Thanks a lot!! Stefan [[alternative HTML version deleted]]

Hi, I hope somebody can help me with this issue: I am doing population pyramids using the barplot command, so in the left side I have male age structure and in the right side the female age structure. To plot the male age structure I put the data in negative numbers. Now, I want to change the sign in the bar plot in such way that I have no-sign numbers, both in left and right side of the graph. I

I have a matrix say: 23 1 12 12 0 0 0 1 0 1 0 2 23 2 I want to count of number of distinct rows and the number of disinct element in the second column and put these counts in a column. SO at the end of the day I should have: c(1, 1, 1, 2, 2, 1, 1) for the distinct rows and c(1, 1, 1, 2, 2, 2, 2) for the counts of how many times the elements in the second column exists. Any help is

Hello I have a data frame as below V1 V2 V3 V4 V5 V6 chr1 18884 C CAAAA 2 0 chr1 135419 TATACA T 2 0 chr1 332045 T TTG 0 2 chr1 453838 T TAC 2 0 chr1 567652 T TG 1 0 chr1 602541 TTTA T 2 0 on which I want to perform complex rearrangement such that: if V3 is a string >1 (i.e line 2) then I

hello, does anyone know how to add histograms or distributions on regression like just like quantiles regression in RGraphGallery below, a very delicate codes. Thanks alot. http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=109

Hi everybody, I have a large dataframe similar to this one: knames <-c('ab', 'aa', 'ac', 'ad', 'ab', 'ac', 'aa', 'ad','ae', 'af') kdate <- as.Date( c('20111001', '20111102', '20101001', '20100315', '20101201', '20110105', '20101001', '20110504',

Apologies for what's probably quite simple, but I'm having some problems with sorting a data frame by the number of occurences of each level of a factor.

Full_Name: Martin Karl-Friedrich Bader Version: 2.8.0 OS: 10.5.3 Submission from: (NULL) (131.152.1.1) Hi there, when using las=1 on the y-axis the labels keep their centered justification, e.g. if you plot a graph using the axis command: axis(side=2, at=c(0,50, 100, 125), lab=c("0","50","100", " "), las=1), then the 0 and the 50 are centered in relation

Is it possible to add lines or other user defined graphics to a plot in R that does not depend on the user scale for the plot? For example I have a plot plot(x,y) and I want to add some graphic that is scaled in inches or cm but I do not want the graphic to change when the x-y scales are changed - like a thermometer, scale bar or other symbol - How does one do this? I want to build my own

Ei-ji Nakama has pointed out (from another Japanese user, I believe) that postscript() and pdf() have not been handling kerning correctly, and this is a request for opinions about how we should correct it. Kerning is the adjustment of the spacing between letters from their natural width, so that for example 'Yo' is usually typeset with the o closer to the Y than 'Yl' would be.

I'd to match-merge 2 tables in such a manner that I keep all the rows in table 1, but not the rows that are in both table 1 and 2. Thank you for your help, Alfredo > master <- data.frame(ID=2001:2011) > train <- data.frame(ID=2004:2006) > valid <- ??? in this example table valid should have the following > str(valid) Year: int 2001 2002 2003 2007 2008 2009 2010 2011