search for: vct

# Newbie alert # I am wanting to multiply the rows in a dataframe by a vector. # However, the default behavior appears to be for the vector to be applied # column wise. For example: vct <- 1:4 df <- data.frame(c1 = 5:10, c2= 6:11, c3=7:12, c4=8:13) multTheTwo <- vct * df multTheTwo # This results in the vector getting cycled columnwise # c1 c2 c3 c4 # 1 5 18 7 24 # 2 12 28 16 36 # 3 21 8 27 10 # 4 32 18 40 22 # 5 9 30 11 36 # 6 20 44 24 52 # But what I actually wa...

...umns # (1 to n), r is the number of iterations, and n is the number of # variables. #------------------------------------------------------------------------- h <- abs(d*x)+eps*(x==0.0) for(k in 1:r) { # successively reduce h for(i in 1:n) { x1.vct <- x2.vct <- x x1.vct[i] <- x[i] + h[i] x2.vct[i] <- x[i] - h[i] if(k == 1) a.mtr[k,i] <- (func(x1.vct) - func(x2.vct))/(2*h[i]) else{ if(abs(a.mtr[(k-1),i])>1e-20) # some functions are unstable near 0.0...

Hi, Suppose I have an arbitrary function: arbfun<-function(x) {...} Is there a robust implementation of a numerical derivative routine in R which I can use to take it's derivative ? Something a bit more than simple division by delta of the difference of evaluating the function at x and x+delta... Perhaps there is a way to do this using D or deriv but I could not figure it out.

...ations, and n is > the number of > # variables. > #------------------------------------------------------------- > ------------ > > h <- abs(d*x)+eps*(x==0.0) > for(k in 1:r) { # successively reduce h > for(i in 1:n) { > x1.vct <- x2.vct <- x > x1.vct[i] <- x[i] + h[i] > x2.vct[i] <- x[i] - h[i] > if(k == 1) a.mtr[k,i] <- (func(x1.vct) - > func(x2.vct))/(2*h[i]) > else{ > if(abs(a.mtr[(k-1),i])>1e-20) > # some functio...

Hi, I have a data-frame r (shown below is a subset) with the following column names: date time sample vct norm hct deltact $time has 8 levels: 0h, 0.5h, .....24h. $deltact holds real numbers. I want to subset this dataframe by the levels of $time. For all the rows which have r$time == "0h" I would like to convert the present value of r$deltact to 0. Any pointers to a simple method...

I'd like very much to be able to run "The Master Genealogist" under Wine. TMG is a MS Visual Foxpro application for genealogy database work. On my Kubuntu 6.10 system I have successfully downloaded and installed Wine 0.9.30, and then installed TMG ver. 6 including updates to 6.12, the current version. During TMG installation, there was a problem with a lack of

...+ + 60 Mexico MEX + + 61 Nicaragua NIC + + 62 Panama PAN + + 63 St.Lucia LCA - - 64 St.Vincent & Grens. VCT - - 65 Trinidad & Tobago TTO + + 66 United States USA + + 67 Argentina ARG + + 68 Bolivia BOL + + 69 Brazil...

Hi All. I am curious if it is possible to reinstall linux distribution to centos (or another distro) if I have a remote linux server with no kvm access (i do not want to use virtualization). I know that for installation pxe, tftpboot and kickstart or a proper iso/cd and kickstart are standard options. But for such operations I would need kvm access. Are there any alternatives which do not need

I fell over this issue yesterday myself with lots of asserts being thrown. I think the issue is in lib/IR/AsmWriter.cpp:1618 in the function AssemblyWriter::printFunction(const Function *F) Looking at the code I think the 2nd for loop should be preceded by the test ... if (Idx < AS.getNumSlots()) Not sure why it doesn't fail on other platforms as it looks like it should be a genuine

...browseable = No [Software] comment = Software images path = /Share/Software read list = @trusted_local_net_users write list = law browseable = No [logs] comment = Athena logs path = /home/NT_Perflogs guest ok = Yes browseable = No [vct] comment = test path = /var/cache/test read list = law, @admin, root write list = law, @admin, root guest ok = Yes browseable = No