search for: vemuri

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2009 Apr 20
7
Fitting linear models
I am not sure if this is an R-users question, but since most of you here are statisticians, I decided to give it a shot. I am using the lm() function in R to fit a dependent variable to a set of 3 to 5 independent variables. For this, I used the following commands: >model1<-lm(function=PBW~SO4+NO3+NH4) Coefficients: (Intercept) SO4 NO3 NH4 0.01323 0.01968
2009 Feb 03
3
Boxplots by variable
Dear R users, I have a matrix "final" which looks like this: final oSO4 oNO3 mSO4 mNO3 [1,] 3.3728 0.2110 1.9517421 1.01883602 [2,] 0.8249 0.0697 1.5970292 0.11368781 [3,] 0.2636 0.1004 0.6012445 0.24356332 [4,] 8.0072 0.3443 6.1016998 3.63207149 [5,] 13.5079 0.6593 12.4011068 1.55323386 [6,] 6.1293 0.1989 5.7620926 0.12884845 [7,] 0.6004 0.0661
2009 Apr 22
2
Exporting objects plotted with plot3d() - rgl package
...ned R-today (Bala subramanian) > 53. Re: Cross-Correlation function (CCF) issues (manta) > 54. plotting with R (Bala subramanian) > 55. Re: joined R-today (Marc Schwartz) > 56. Re: ggplot2 - boxplot of variables / columns (ONKELINX, Thierry) > 57. Re: Fitting linear models (Vemuri, Aparna) > 58. Re: ggplot2 - boxplot of variables / columns (David Winsemius) > 59. Re: Cross-Correlation function (CCF) issues (David Winsemius) > 60. Re: plotting with R (David Winsemius) > 61. Re: Fitting linear models (Dimitri Liakhovitski) > 62. Re: plotting with R (St...
2009 Apr 14
2
Controlling widths in write.fwf()
Is there a way to handle the widths of values being written to a file using wrtite.fwf() ? For example, I used read.fwf(file, width.vector) to read a file. After making the necessary data manipulation, I want to write the data to a new file in the same width.vector format. Is there a way to specify this? Thanks in Advance Aparna [[alternative HTML version deleted]]
2009 Feb 27
1
Large 3d array manipulation
I have a large 3 dimensional array of size (243,246,768) The first dimension is Rows, second is columns and the third is Time. So for each row and column, I want to calculate the mean of time steps 1:8, 2:9, 3:10 and so on and assign the values to a new array. For this I am using the following script. for(i in 1:243) { for(j in 1:246) { for(k in 1:768) { newVar[i,j,k] <- mean(
2005 Feb 07
1
Provider with GA DIDs and LNP
Hi, I am looking for a provider that can provide DIDs in Atlanta, GA (national in future) and who can port an existing number. LiveVoip is a perfect fit but doesn't do LNP :-(. Currently I only need a handful of numbers ported, but will have more requirement in future. I'll need unlimited simultaneous incoming/outgoing calls (can pay for incoming as well). Any pointers are much
2005 Feb 22
1
Polycom IP 500 : Displaying digits dialed after connection
Hello All, I am wondering if there is a way to make Polycom IP 500 SIP phone display digits dialed after a call is connected. For example, when I call an IVR, after the connection is complete, the digits dialed to enter account number etc are not displayed on the phone. They are sent to the target. My users are asking to see the digits dialed as they are used to seeing them on our old Nortel
2005 Feb 24
1
Bug in SUBSCRIBE handling : running out of RTP ports
While trying to deploy a bunch of Polycom IP 500 phones, I ran in to the following. I limited the RTP ports from 8000-8050 to limit holes in firewall. Pretty soon Asterisk ran out of RTP ports. Traced the problem back to how * is handling SUBSCRIBE. A sip structure is allocated as soon as a request is received, which also allocates RTP ports. Normally, this is not a problem as the structure
2009 Feb 06
1
Tables in legend
I need to create a legend for a simple scatter plot in the following format. This is Blah1 number1 number2 This is Blah2 number3 number4 . . . This is Blah6 number11 number12 I looked up these help pages and found the following solution. lStr<-c(Blah1, Blah2,....Blah6, number 1, number2, ...number12) legend(x="topright",lStr,ncol=3) So this creates the tabular format I am
2005 Oct 15
1
help with openssh
Can anybody help me with this : ? I first generated rsa key with this : ssh-keygen -t rsa -f /etc/ssh/ssh_host_rsa_key then I went on to generate the DSA key too....(just incase my SSHD does not like RSA). ssh-keygen -t dsa -f /etc/ssh/ssh_host_dsa_key and then I ran root at 00_00_09_PECA_NP1:/usr/bin# sshd -d -d -d -d -d -d -d -d -d debug3: RNG is ready, skipping seeding debug2: