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29 results for “from:Rafael Pereira”

[R-pkg-devel] Solaris: Error with package imports
Rafael Pereira · Sep 25, 2020 · r-package-devel

Hi all. I'm having a strange error with the CRAN checks on Solaris. The Solaris server throws the error: Package required but not available: ?jdx? even though jdx is listed in 'Imports' in my DESCRIPTION file. This error only...

[R-pkg-devel] CRAN pending status , left up in the air
Rafael Pereira · Oct 18, 2020 · r-package-devel

Hi all, The CRAN incoming Dashboard indicates that the status of my package (r5r) is "pending", which means 'the CRAN maintainers are waiting for an action on your side. You should check your emails!'. However, I haven't received any...

Calculating distance matrix with spatial link distance
Rafael Pereira · Jun 11, 2023 · r-sig-geo

Hi all, I'm trying to calculate a distance matrix considering spatial link distances, rather than simple Euclidean distances. Is there a package / function to do this already? I couldn't find any cooked solution. I've started drafting an...

[R-pkg-devel] ASCII code for Degree symbol °
Rafael Pereira · Jan 23, 2022 · r-package-devel

Hi all. In one of the functions of my package (flightsbr), I have a vector with character strings where I need to replace the degree symbol ? with a point '.' So this is what I do: vec <- gsub("[?]", ".", vec) However, I...

bivariate spatial correlation in R
Rafael Pereira · Jul 24, 2017 · r-sig-geo

Hi all, I would like to ask whether some you conducted bi-variate spatial correlation in R. I know the bi-variate Moran's I is not implemented in the spdep library. I left a question on SO but also...

[R-pkg-devel] Package removed from CRAN without warning
Rafael Pereira · Jul 17, 2025 · r-package-devel

Hi all, I recently noticed that my package {flightsbr} <https://ipeagit.github.io/flightsbr/> has been removed from CRAN but I never received any email or warning that the package would be removed. It seems my package was removed because...

[R-pkg-devel] Solaris: Error with package imports
Rafael Pereira · Sep 25, 2020 · r-package-devel

Thank you for the clarification, Uwe. in this case, this error on Solaris alone should not be a problem to keep the package on CRAN. right? best, Rafa On Fri, Sep 25, 2020 at 9:57 AM Uwe Ligges <ligges...

[R-pkg-devel] Fix non-ASCII characters in R packages
Rafael Pereira · Dec 2, 2019 · r-package-devel

Hi all, I am trying to update my R package on CRAN but I am being requested to fix this NOTE: checking data for non-ASCII characters ... NOTE Note: found 58 marked Latin-1 strings I have used to code...

geobr: easy access to official spatial data sets of Brazil
Rafael Pereira · Aug 12, 2019 · r-sig-geo

Dear all, I'm glad to annouce geobr <https://github.com/ipeaGIT/geobr>, an R package that provides easy and quick access to official spatia data sets of Brazil. The package currently includes several data sets for various years such...

standard errors of total impacts in a spatial lag regression model lagsarlm
Rafael Pereira · Jan 3, 2018 · r-sig-geo

Dear all, I am using a spatial lag regression model in a paper. I know already how to get the total impacts of the model, but I don't know how to generate the standard errors of the total impacts...

[R-pkg-devel] ASCII code for Degree symbol °
Rafael Pereira · Jan 23, 2022 · r-package-devel

Thank you, dbosak01. This was really really helpful ! best wishes, Rafael Pereira On Sun, Jan 23, 2022 at 11:09 PM <dbosak01 at gmail.com> wrote: > vec <- c("one", "two", "three?") > vec > # [1] "one" "two" "three?" > > vec1 <- gsub("[\xB0]", ".", vec...

Square vs. honeycomb raster grids
Rafael Pereira · Sep 1, 2017 · r-sig-geo

Melanie, if you're also interested, this paper brings a good summary of the pros and cons of three regular tessellations: hexagons, squares and triangles. http://www.sciencedirect.com/science/article/pii/S0304380007001949 best wishes, Rafael H M Pereira On...

[R-pkg-devel] Package removed from CRAN without warning
Rafael Pereira · Jul 17, 2025 · r-package-devel

Uwe, I have checked my inbox and spam and could not find the email. I might have deleted it by accident. In any case, thank you both for the clarification. We'll be working to resubmit both packages to CRAN...

[R-pkg-devel] ASCII code for Degree symbol °
Rafael Pereira · Jan 24, 2022 · r-package-devel

Thank you Matt and Ivan. This is all much appreciated. The concern with portability across OS is also very important! thanks again! Rafael On Mon, Jan 24, 2022 at 7:03 AM Matt Denwood <md at sund.ku.dk> wrote...

Spatio-temporal modelling for trip generation data
Rafael Pereira · Sep 4, 2019 · r-sig-geo

Hi Ariel, There are many open source options to conduct routing analysis, which are used into accessibility modeling. One of the most used alternatives nowadays is called OpenTripPlanner <https://github.com/opentripplanner/OpenTripPlanner>. I've written a couple Python scripts...

[R-pkg-devel] Falling gracefully in subsequent code
Rafael Pereira · Jan 4, 2026 · r-package-devel

?? Rafael H. M. Pereira reacted via Gmail <https://www.google.com/gmail/about/?utm_source=gmail-in-product&utm_medium=et&utm_campaign=emojireactionemail#app> On Fri, Jan 2, 2026 at 2:09?PM Michael Chirico <michaelchirico4 at gmail.com...

[R-pkg-devel] Fix non-ASCII characters in R packages
Rafael Pereira · Dec 2, 2019 · r-package-devel

Thanks for the heads up, Ivan. In any case, I?ll change the encoding of the database. Uwe, I?m faxing this issue in the geobr package Rafael H.M. Pereira > On 2 Dec 2019, at 13:39, Uwe Ligges...

Spatiotemporal autocorrelation in R
Rafael Pereira · Jun 7, 2018 · r-sig-geo

Hi Laura, I don't know any specific function/package that does precisely what you want to do. A while ago, I wanted to run a bivariate spatial correlation in R (bivariate LISA) and I couldn't find package with...

[R-pkg-devel] Fix non-ASCII characters in R packages
Rafael Pereira · Dec 2, 2019 · r-package-devel

Thank you for the clarification, Uwe Ligges. best, Rafael Pereira On Mon, Dec 2, 2019 at 4:36 PM Uwe Ligges <ligges at statistik.tu-dortmund.de> wrote: > OK, but this note did not lead to a rejection (and the...

standard errors of total impacts in a spatial lag regression model lagsarlm
Rafael Pereira · Jan 4, 2018 · r-sig-geo

Thank you, Roger! I will look into this . best wishes, Rafael H M Pereira On Wed, Jan 3, 2018 at 10:32 AM, Roger Bivand <Roger.Bivand at nhh.no> wrote: > On Wed, 3 Jan 2018, Rafael Pereira wrote: > > Dear...

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