[R] (no subject)
Hello Rers: Let's say I have a column that looks like this: Column 167.8 292.8 363.3 1.9 115.25 I want to manipulate the above data such that I only end up with this same column but only with its decimals and not its whole numbers. So the new column would look like this (but the real column is VERY long): Column .8 .8 .3 .9 .25 Any suggestions about how I could do this? -- Do all you can with what you have in the time you have in the place you are! -Nkosi Johnson, 12-year old African hero __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Contour Plots
Hello all. I'm confused a bit about contour plots. After reading the help at "?contour", it seems as though the contour plot is for 3D plots (x,y, and z). My data is in the form of grid coordinates (x,y), and I want to see a contour plot of the data so that I can tell where most observations lie. My question is simple but still evasive. Say my data is called places. One column is X and another is Y. Or, places$X places$Y Coordinate 1 32 50 Coordinate 2 15 33 Coordinate 3 28 20 etc How do I get R to do the contour plot with no third "z" coordinate? Thanks. -- Do all you can with what you have in the time you have in the place you are! -Nkosi Johnson, 12-year old African hero __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
[R] Data Parsing
Hello. I have looked at R Site Search for this problem, and it didn't
give me exactly what I needed.
Consider this dataset called "results". It has the following information:
Student DaySubjectScore
Mary 1 Math Failed
David 2 Science Passed
Bob 4 Reading Passed
Marie 4 Reading Failed
Jesse 3 Spelling Borderline
Et cetera
My goal is to only do analysis of the data having to do those who passed
or who are borderline. I want to ignore all of the data having to do with
those who failed. I think part of the syntax is something like
results[-c("Failed")], but I'm not getting anywhere with it.
How do I create a separate data set containing all information on students
who either passed or were borderline?
Thanks.
Bernard
--
Do all you can with what you have in the time you have in the place you are!
-Nkosi Johnson, 12-year old African hero
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[R] Moving average
Good morning all!
I am attempting to superimpose a moving-average smoother onto a graph of
daily plots. These plots (in table[,2] below) span about 350 days and
looks very noisy. I'd like for this smoother to plot the average of each
group of 7 consecutive days (weekly) and show a line which joins these
series of averages. Given the definition of MA, the first and last points
will generally overlap in the average calculation.
It's probably a one-liner, but I still am having some problems with the
syntax. The only part I have correct is the "lines" statement to ensure
it overlays my original graph.
Here's the code I have thus far:
y <- table[,2]
plot(y,type="l",lty=3)
lines( ..) {moving average code here to be placed here}
Any time series gurus out there? Be gentle. I'm an R beginner.
Thanx!
Bernard
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[R] Dateticks
Hello. I am having the worst time converting x-axis date ticks to real dates. I have tried several suggestions in online help tips and books to no avail. For example, the x-axis has 0, 50, 100, etc, and I want it to have "6/17/03", "8/6/03" etc. See attached (sample). Can anybody help me with this. Here's my code: ts.plot(date.attackmode.table[,1], type="l", col="blue", lty=2,ylab="IED Attacks", lwd=2,xlab="Attack Dates",main="Daily Summary of Attack Mode") grid() Thanks for your help if possible. sample.pdf Description: Adobe PDF document __ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
