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11 results for “from:Philippe de Rochambeau”

Newbie question: histogram
Philippe de Rochambeau · Feb 4, 2004 · r-help

Hello, how do you create a histogram with a data frame? year snow.cover 1970 6.5 1971 12.0 1972 14.9 1973 10.0 1974 10.7 1975 7.9 ... mydata=data.frame(year=c(1970,...),snow.cover...

R for RedHat Linux upgrade?
Philippe de Rochambeau · May 17, 2016 · r-help

Hello, does anyone know when the R 3.3 binary for RH Linux 7 will be available from the RedHat Repository? One of my R scripts, which uses ggplot2, works fine in RStudio 3.24 on Windows, but doesn't...

Plotting data on a map
Philippe de Rochambeau · Apr 6, 2016 · r-help

Hello, I would like to generate a small map (say 10cm x 10cm) of France showing cumulative numbers by Distribution Center stored in a database: DISTRIBUTION_CENTER COUNT Paris 122 Paris 3 Paris 21 Lyon 12 Lyon 4444 Lyon 33...

ggplot2 not displaying graph in RH7 RStudio Server 3.2.3
Philippe de Rochambeau · May 18, 2016 · r-help

Hello, I have written an R script which displays a bar chart using the ggplot2 library (please refer to code excerpt at the bottom of this e-mail). Although the bar chart is displayed OK in the Windows version of...

Various newbie questions
Philippe de Rochambeau · Feb 4, 2004 · r-help

Hello, 1) What is the difference between a "data frame" (J H Maindonald, Using R, p. 12) and a "vector"? In Using R, the author asks the reader to enter the following data in a data frame, which I will...

Accelerating binRead
Philippe de Rochambeau · Sep 17, 2016 · r-help

Hello, the following function, which stores numeric values extracted from a binary file, into an R matrix, is very slow, especially when the said file is several MB in size. Should I rewrite the function in inline C or in...

ggplot2 not displaying graph in RH7 RStudio Server 3.2.3
Philippe de Rochambeau · May 18, 2016 · r-help

Here's a minimal example that displays a bar chart in RStudio 3.2.4 for Windows, but not in RStudio Server 3.2.3 on RH Linux 7: ------------------------------------------------------------------- R Code ------------------------------------------------------------------- library(ggplot2) a <- c("ab", "bc", "cd") b <- c...

Accelerating binRead
Philippe de Rochambeau · Sep 18, 2016 · r-help

I would gladly examine your example, Mike. Cheers, Philippe > Le 18 sept. 2016 ? 16:05, Michael Sumner <mdsumner at gmail.com> a ?crit : > > > >> On Sun, 18 Sep 2016, 19:04 Philippe de Rochambeau <phiroc at free.fr> wrote: >> Please find...

Accelerating binRead
Philippe de Rochambeau · Sep 18, 2016 · r-help

Please find below code that attempts to read ints, longs and floats from a binary file (which is a simplification of my original program). Please disregard the R inefficiencies, such as using rbind, for now. I?ve also included Java...

Accelerating binRead
Philippe de Rochambeau · Sep 18, 2016 · r-help

The only difference between the below code and my program is that the former assumes that the file only contains one row of 10 ints + 10 floats , whereas my program doesn?t know in advance how many rows the file...

Accelerating binRead
Philippe de Rochambeau · Sep 17, 2016 · r-help

Hi Jim, this is exactly the answer I was look for. Many thanks. I didn?t R had a pack function, as in PERL. To answer your earlier question, I am trying to update legacy code to read a binary...

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