similar to: calling a C program from R

Hi, I'm not being able to capture a position of a 'string' in a character string. In this example: 'There are 20 species in this grid' I would like to capture the string (number) after 'are' and before 'species'. Consider they do not change. I wouldn't like to use substr because stop position may change. Thanks Paulo

I'm trying to create a graph where different cells of a grid (a shapefile) will be painted with a color share scale, where the most easy way is to use gray(). Can I somehow get a vector (gradient) of colors, a vector of colors with other methods but gray()? I'm doing this until now quad_N_sp <-

I have a xml exported by Manifold GIS but I'm not being able to import it into R using XLM package. The file have this structure: <?xml version="1.0" encoding="UTF-8" ?> - <layout> <name>Layout 2</name> <pagesByX>1</pagesByX> <pagesByY>1</pagesByY> - <elements> <legend

Can we by any change perform in R something similar geoprocessing or, more advanced, Spatial SQL over vectorial data? Paulo [[alternative HTML version deleted]]

I'd like to know how to call a program to run or open a specific file. something like this: system('"C:\\Program Files (x86)\\IrfanView\\i_view32.exe"','-A:\\ teste.jpg') is not working. any help will be appreciated ____________ Paulo E. Cardoso [[alternative HTML version deleted]]

Hi, I've installed Gluster Storage Platform on two servers (mirror) and mounted the volume on a client. I had to mount it using "mount -t glusterfs <MANAGEMENT_SERVER>:<VOLUMENAME-ON-WEBGUI>-tcp <MOUNTPOINT>" because I didn't had a vol file and couldn't generate one with volgen because we don't have shell access to the gluster server right? How can

Hi, I'm trying to customize a window with 2 graphs. I'm able to do the first one with something like this general example par(mfrow=c(1,2),cex.axis=0.85,cex.lab=0.80,mai=c(1.3,1,0.5,0),las=3) bplot<-barplot(bar.values,names.arg=cf.names,width=0.5,ylab="% Area held") abline(h=0.3,lty=3,col="red") abline(h=0.1,lty=3,col="blue")

How can I print a data.frame to a PDF with pdf()...dev.off() ____________ Paulo E. Cardoso [[alternative HTML version deleted]]

Sds, Paulo Henrique Cardoso Administrador de Redes - T.I. NHS Sistemas Eletr?nicos Ltda Av. Juscelino Kubitschek de Oliveira, 5270 Cidade Industrial, Curitiba - PR Fone/Fax: (41) 2141-9246/9247 www.nhs.com.br IMPORTANTE: Esta mensagem, incluindo quaisquer anexos, ? endere?ada exclusivamente ao seu destinat?rio e poder? conter informa??es confidenciais. A revis?o, distribui??o,

I have a vector of values X = seq(1:10) I want to get another vector V of with sample (with replacement) of X but with a constrain: V will have as much elements as those necessary to V sum exactly 10. If the N-th value of V make the sum greater than 10, it's is subtracted with the difference to achieve the constrain. I don't know how to achieve this. with a while?

In a raster asc object, I'd like to take the positions (x and y coordinates) for a given "pixel" ID. Any idea about how to do this? _______________ Paulo E. Cardoso [[alternative HTML version deleted]]

I need to get the exact sentence, with the quotes: OPTIONS COORDSYS("Surface1" AS COMPONENT); but this: options(useFancyQuotes = F) paste("OPTIONS COORDSYS(", dQuote("Surface 1"), "AS COMPONENT);" ) give me this: [1] "OPTIONS COORDSYS( \"Surface 1\" AS COMPONENT);" And it's not readable as SpatialSQL code by

I'm not sure if there are better methods to create objects such as dataframes with other than rbind function. II usually combine a data.frames created at each loop with a rbind(), specially when I don't know the dimension of the data.frame that will be created. Binding the new to an existing data.frame seems to be the easiest way to build an object that assemble data in a loop.

Fixing llvm-dev at llvm.org to llvm-dev at lists.llvm.org On Tue, Nov 17, 2020 at 11:27 AM Thomas Lively <tlively at google.com> wrote: > Thanks for your work on this, Paulo! > > Here's some more detail about how function pointers work today in the > WebAssembly backend and how they differ from the `funcref` Paulo is > working on. > > Today in the WebAssembly

Hi, In a symmetric design one may have a data.frame with, say, two factors (two columns), each one with n levels. In a nested loop, to run a expression combining levels of each factors, to produce a new data.frame, if one level is absent, the loop is interrupted; one gets a empty object. Is there a way to avoid or skip combinations of factors in such nested loops? I think that

Hello, I have a package which includes some parameterized r-markdown report which I would also like to build as package vignettes. Is there a way to run the parameterized vignette creation with the package build or package check? Thank you -- Witold Eryk Wolski

Is it possible to convert an hexbin object like hexbin(rep(1:100,each=100),rep(1:100,100),xbins=10) and convert it to a vectorial (shp) format? Paulo ---------------------------------------------------------------------------- ------------------------------------------------- This electronic mail transmission including any attachment hereof, contains information that is private and confidential,

Hi, I'm trying to match two data frames in order to replace the boundary values in a dataframe.1 with values in dataframe.2 ONLY where the pair id1 id2 matches between the two data frames. Eg. > dataframe.1 ... id1 id2 boundary 3307 1095 1108 438.691 3308 1095 1109 438.691 3309 1095 1121 438.691 3310 1096 1109 438.691 ... 3345 1108 1120 438.691 3346 1108 1121 438.691 3347 1108

On Mon, January 18, 2016 10:51 am, Gene Cumm wrote: > On Mon, Dec 14, 2015 at 7:54 PM, Paulo Alcantara <pcacjr at gmail.com> wrote: >> Besides supporting newer version of xfs file system, this patch also >> does some code refactoring and fix completely broken listing and >> searching on v2-3 node directories. >> >> Cc: Gene Cumm <gene.cumm at gmail.com>

2015-11-10 23:18 UTC+01:00, Paulo Alcantara via Syslinux <syslinux at zytor.com>: > On Tue, 10 Nov 2015 14:51:04 +0100 > Nicolas Cornu via Syslinux <syslinux at zytor.com> wrote: > >> From: Nicolas Cornu <ncornu at aldebaran.com> >> >> --- >> mtools/Makefile | 1 + >> mtools/syslinux.c | 59 >>