Displaying 2 results from an estimated 2 matches for "pgrid".
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2011 Apr 12
1
How to set the dimension of a matrix correctly?
...brary(geoR) #functions for geostatistical data analysis
coords<- as.matrix(read.table('/Users/R/Code/stncoords.dat'))ppt<- as.matrix(read.table('/Users/R/Code/ppt_15day.dat'))
xx <- dim(ppt) # (77,528)
plat <- seq(37.5,42,by=0.07273)plon <- seq(-105.5,-93.5,by=0.07273)pgrid <- expand.grid(x=plon,y=plat)pdim <- dim(pgrid) # (10230,2)
#plot(pgrid, cex=0.5)
lat <- coords[,1] lon <- coords[,2]
ppt1 <- ppt[,1:xx[2]] # 1:528
pptpred <- matrix(0,ncol=xx[2],nrow=1)
############# Only test one period data##################
ptemp <- ppt1[,3] ll <- w...
2012 Aug 28
3
date in plot, can't add regression line
Hello all,
I have been using R for about 3 weeks and I am frustrated by a problem. I have read R in a nutshell, scoured the internet for help but I either am not understanding examples or am missing something completely basic. Here is the problem:
I want to plot data that contains dates on the x axis. Then I want to fit a line to the data. I have been unable to do it.
This is an example of