[R] Smoothing Data-dplyr

Please note that I have already asked this question on stackoverflow.com but did not get a satisfactory answer. I have a data set containing velocities of 2169 vehicles recorded at intervals of 0.1 seconds. So, there are many rows for an individual vehicle. Here I am reproducing the data only

[R] Extracting values from rows which meet a condition in R 3.0.2

is different vehicle to vehicle. Thanks, Umair Durrani Master's candidate Civil and Environmental Engineering University of Windsor [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https

Re: [R] Detecting Vehicle locations using R

The problem is resolved already. Please don't include this question in future mailing list Umair Durrani email: umairdurr...@outlook.com Subject: Re: [R] Detecting Vehicle locations using R From: jdnew...@dcn.davis.ca.us Date: Thu, 20 Feb 2014 20:06:28 -0800 To: umairdurr...@outlook.com

[R] Detecting Vehicle locations using R

I have a data frame of vehicle trajectories. Here's a snapshot: dput(head(df))structure(list(vehicle = c(2L, 2L, 2L, 2L, 2L, 2L), frame = 43:48, globalx = c(6451214.156, 6451216.824, 6451219.616, 6451222.548, 6451225.462, 6451228.376), class = c(2L, 2L, 2L, 2L, 2L, 2L), velocity =

[R] R 3.0.2 How to Split-Apply-Combine using various Columns

as max frame number. This makes 30 time slots as 22-322, 322-622, ..., 9022-9233. I need following output: TimeSlot Total-Cars Total-Trucks Total-Motorcycles MeanVelocity-Cars MeanVelocity-Trucks MeanVelocity-Motorcycles22-322322-622...9022-9233 Umair Durrani email: umairdurr

[R] Corrected - R 3.0.2 How to Split-Apply-Combine using various Columns

Hello everyone,Here is the version using dput. I am sorry for the junk I posted before. I have a large vehicle trajectory data of which following is a small part: structure(list(vehicle = c(1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L,2L, 2L), frame = c(221L, 222L, 223L, 224L, 115L, 116L, 117L, 118L,

[R] R 3.0.2 How to Split-Apply-Combine using various Columns

have tried many things and also used some suggestions from stackoverflow but still am unable to get output like this with input data. Please help. Umair Durrani email: umairdurr...@outlook.com

Re: [R] How to get the proportions of data with respect to two variables in R?

VehicleLength VehicleWidth Proportion 10.0 3.0 1.0 Umair Durrani email: umairdurr...@outlook.com Date: Sat, 30 Nov 2013 23:41:28 -0800 From: smartpink...@yahoo.com Subject: Re: [R] How to get the proportions of data with respect to two variables in R? To: r-help@r-project.org CC: umairdurr

[R] How to get the proportions of data with respect to two variables in R?

worked but I could not find the proportions by using the code below:by (cars, INDICES=cars$'Vehicle Length', FUN=table(class$'Vehicle width'))R gives an error stating that it could not find 'FUN'. Please help me in finding the proportions of each model within all classes of vehicles. Umair

Re: [R] Apply function to one specific column / Alternative to for loop

This might be of some use : http://nsaunders.wordpress.com/2010/08/20/a-brief-introduction-to-apply-in-r/ Umair Durrani email: umairdurr...@outlook.com Date: Sat, 16 Nov 2013 07:30:29 -0800 From: ron...@gmx.net To: r-help@r-project.org Subject: [R] Apply function to one specific column

Re: [R] R for a stats intro for undergrads in the US?

/stats1 Hope this helps, Umair Durrani email: umairdurr...@outlook.com Date: Sat, 16 Nov 2013 18:19:16 -0800 From: spencer.gra...@prodsyse.com To: R-help@r-project.org Subject: [R] R for a stats intro for undergrads in the US? Hello, All: Would anyone recommend R

[R] How to sum a function over a specific range in R?

problem but default smoothing algorithms in R are not suitable for my data and I have to use this custom formula. Thanks in advance. Umair Durrani [[alternative HTML version deleted]] __ R-help@r

[R] R 3.0.2 - How to create intervals and group another variable in those intervals?

fixedBreaksEven after intervals are created, I need to group spacing and find the avg. for every interval. How can I do this? I have tried what I could, please help Umair Durrani email: umairdurr...@outlook.com [[alternative HTML version deleted