O serviço do Power BI dá suporte à exibição e interação com visuais criados com scripts do R. Os visuais criados com scripts do R, normalmente chamados de visuais do R, podem apresentar formatação e análise de dados avançadas, como previsão, usando o poder da análise e da visualização avançadas do R.

Observação: a linguagem de programação R está entre as linguagens de programação mais amplamente utilizadas por estatísticos, cientistas de dados e analistas de negócios. A linguagem R tem uma comunidade de software livre que oferece mais de 7.000 pacotes complementares, como bem como os amplamente utilizados Grupos de Usuários do R. A versão do R implantada no serviço do Power BI é a Revolution R Open 3.2.2.

A imagem a seguir mostra um dashboard do Power BI com uma coleção de visuais do R usados para análise avançada.

Os visuais do R são criados em um relatório do Power BI Desktop, como o relatório mostrado na imagem a seguir.

Depois que o relatório for criado no Power BI Desktop, será possível publicar o relatório contendo um ou mais visuais do R no serviço do Power BI. Atualmente, os visuais do R só podem ser criados no Power BI Desktop e, em seguida, publicados no serviço do Power BI. Para obter mais informações sobre como criar visuais do R, veja Create Power BI visuals using R (Power BI Desktop) (Criar visuais do Power BI usando o R [Power BI Desktop]).

Observe que, no serviço, nem todos os pacotes do R têm suporte. Confira os pacotes com suporte ao final deste artigo para obter a lista dos pacotes atualmente com suporte no serviço do Power BI.

Você pode baixar este arquivo de exemplo do Power BI Desktop (arquivo .pbix) que contém alguns visuais do R para ver como isso funciona e testá-lo.

Na maioria dos casos, os visuais do R criados no Power BI Desktop e publicados no serviço do Power BI, se comportam como qualquer outro visual do serviço do Power BI: é possível interagir, filtrar, segmentá-los e fixá-los em um dashboard ou compartilhá-los com outras pessoas. Para obter mais informações sobre como compartilhar dashboards e visuais, veja compartilhar um dashboard com seus colegas e com outras pessoas. Uma diferença entre os visuais do R e outros visuais é que aqueles não podem mostrar dicas de ferramenta e não podem ser usados para filtrar outros visuais.

Como você pode ver na imagem a seguir, os visuais do R no serviço do Power BI, estejam eles em dashboards ou relatórios, na maioria dos casos, aparecem e se comportam como qualquer outro visual, e os usuários não precisam conhecer o script do R subjacente que criou o visual.

Segurança de scripts do R

Os visuais do R são criados com base nos scripts do R que, potencialmente, podem conter código com riscos de segurança ou privacidade.

Esses riscos existem, principalmente, na fase de criação, quando o autor do script executa o script no próprio computador.

O serviço do Power BI aplica uma tecnologia de área restrita para proteger os usuários e o serviço contra riscos de segurança.

Essa abordagem de área restrita impõe algumas restrições sobre os scripts do R em execução no serviço do Power BI, como o acesso à Internet ou o acesso a outros recursos que não são necessários para criar o visual do R.

Experiência de erro com scripts do R

Quando há um erro em um script do R, o visual do R não é plotado e uma mensagem de erro é exibida. Para obter detalhes sobre o erro, selecione Ver detalhes no erro do visual do R na tela, conforme mostrado na imagem a seguir.

Como outro exemplo, a imagem a seguir mostra a mensagem de erro que aparece quando um script do R não é executado corretamente devido à ausência de um pacote do R no Azure.

Licenças

Os visuais do R exigem uma licença Power BI Pro para serem renderizados em relatórios, na atualização, no filtro e no filtro cruzado. Para obter mais informações sobre licenças do Power BI Pro e como elas diferem das licenças gratuitas, veja Conteúdo do Power BI Pro – o que é isto?

Os usuários da versão gratuita do Power BI só poderão consumir blocos compartilhados com eles. Veja Comprando o Power BI Pro para obter mais informações.

A tabela a seguir descreve as funcionalidades dos visuais do R com base em licenciamento.

Limitações Conhecidas

Os visuais do R no serviço do Power BI têm algumas limitações:

  • O suporte para os visuais do R é limitado aos pacotes identificados na página a seguir . Atualmente, não há suporte para pacotes personalizados.

  • Limitações de tamanho de dados – os dados usados pelo visual R para plotar são limitados a 150.000 linhas. Se mais de 150.000 linhas forem selecionadas, somente as primeiras 150.000 linhas serão usadas e uma mensagem será exibida na imagem.

  • Limite de tempo de cálculo – se um cálculo do visual do R exceder 60 minutos, o script atingirá o tempo limite, resultando em erro.

  • Visuais R são atualizados após atualizações de dados, filtragem e realce. No entanto, a própria imagem não é interativa e não dá suporte a dicas de ferramenta.

  • Visuais R respondem ao realce de outros elementos visuais, mas você não pode clicar em elementos no visual R para fazer filtragem cruzada de outros elementos.

  • Atualmente, não há suporte nos visuais do R para o tipo de dados Hora. Em vez disso, use Data/Hora.

  • Os visuais do R não são exibidos quando se usa o recurso Publicar na Web.

  • Atualmente, os visuais do R não são impressos com a impressão de dashboards e relatórios

  • Atualmente, não há suporte para os visuais do R no modo DirectQuery do Analysis Services

Pacotes com suporte

Visão geral de pacotes de R

Pacotes de R são coleções de funções de R, dados e código compilado combinados em um formato bem definido. Quando o R é instalado, ele vem com um conjunto padrão de pacotes e outros pacotes estão disponíveis para download e para instalação. Depois de instalados, os pacotes de R devem ser carregados para a sessão a ser usada. A principal origem de pacotes de R gratuitos é o CRAN, a Rede Completa de Arquivos do R.

O Power BI Desktop pode usar qualquer tipo de pacotes de R sem limitação. É possível instalar pacotes de R para uso no Power BI Desktop por conta própria (usando o IDE RStudio, por exemplo).

Os pacotes encontrados na seção Pacotes com suporte encontrada posteriormente neste artigo dão suporte aos visuais do R no serviço do Power BI. Se você não encontrar um pacote do seu interesse na lista de pacotes com suporte, será possível solicitar o suporte do pacote.

Solicitar suporte para um novo pacote de R

Os pacotes de R com suporte para o serviço do Power BI são encontrados na seção a seguir, intitulada Pacotes com suporte. Se você quiser solicitar o suporte de um pacote de R não encontrado nessa lista, será possível enviar um email com sua solicitação para a Equipe de Comentários do R no Power BI.

Requisitos e limitações de pacotes de R

Há alguns requisitos e limitações dos pacotes de R:

  • O serviço do Power BI, na sua maioria, dá suporte a pacotes de R com licenças de software gratuitas e de software livre como GPL-2, GPL-3, MIT+ e assim por diante.
  • O serviço do Power BI dá suporte a pacotes publicados no CRAN. O serviço não dá suporte a pacotes de R personalizados ou privados. Recomendamos que os usuários disponibilizem seus pacotes privados no CRAN antes de solicitar que o pacote esteja disponível no serviço do Power BI.

  • O Power BI Desktop tem duas variações para pacotes de R:

    • Para visuais do R, é possível instalar qualquer pacote, incluindo pacotes de R personalizados
    • Para visuais personalizados do R, há suporte somente para pacotes CRAN públicos para instalação automática dos pacotes
  • Por motivos de privacidade e segurança, atualmente não damos suporte a pacotes de R que forneçam consultas de cliente-servidor por meio da World Wide Web (como RgoogleMaps) no serviço. A rede está bloqueada para essas tentativas. Não há suporte para os seguintes pacotes de R no serviço do Power BI:

    • RgoogleMaps (a rede está bloqueada)
    • mailR (a rede está bloqueada)
    • RevoScaleR (fornecido somente com o Microsoft R Server)
  • O processo de aprovação para a inclusão de um novo pacote de R tem uma árvore de dependências; algumas delas que precisam ser instaladas no serviço não têm suporte.

Pacotes com suporte:

Pacote Versão Link
abc 2.1 https://cran.r-project.org/web/packages/abc/index.html
abc.data 1 https://cran.r-project.org/web/packages/abc.data/index.html
acepack 1.3-3.3 https://cran.r-project.org/web/packages/acepack/index.html
actuar 1.2-0 https://cran.r-project.org/web/packages/actuar/index.html
ade4 1.7-4 https://cran.r-project.org/web/packages/ade4/index.html
AdMit 2.0.1 https://cran.r-project.org/web/packages/AdMit/index.html
andrews 1 https://cran.r-project.org/web/packages/andrews/index.html
aod 1.3 https://cran.r-project.org/web/packages/aod/index.html
apcluster 1.4.3 https://cran.r-project.org/web/packages/apcluster/index.html
ape 3.4 https://cran.r-project.org/web/packages/ape/index.html
aplpack 1.3.0 https://cran.r-project.org/web/packages/aplpack/index.html
approximator 1.2-6 https://cran.r-project.org/web/packages/approximator/index.html
arm 1.8-6 https://cran.r-project.org/web/packages/arm/index.html
arules 1.4-0 https://cran.r-project.org/web/packages/arules/index.html
arulesViz 1.1-0 https://cran.r-project.org/web/packages/arulesViz/index.html
assertthat 0.1 https://cran.r-project.org/web/packages/assertthat/index.html
BACCO 2.0-9 https://cran.r-project.org/web/packages/BACCO/index.html
BaM 0.99 https://cran.r-project.org/web/packages/BaM/index.html
BAS 1.1.0 https://cran.r-project.org/web/packages/BAS/index.html
base64enc 0.1-3 https://cran.r-project.org/web/packages/base64enc/index.html
bayesm 3.0-2 https://cran.r-project.org/web/packages/bayesm/index.html
bayesQR 2.2 https://cran.r-project.org/web/packages/bayesQR/index.html
bayesSurv 2.6 https://cran.r-project.org/web/packages/bayesSurv/index.html
BayesTree 0.3-1.3 https://cran.r-project.org/web/packages/BayesTree/index.html
BayHaz 0.1-3 https://cran.r-project.org/web/packages/BayHaz/index.html
bbemkr 2 https://cran.r-project.org/web/packages/bbemkr/index.html
BCBCSF 1.0-1 https://cran.r-project.org/web/packages/BCBCSF/index.html
BCE 2.1 https://cran.r-project.org/web/packages/BCE/index.html
bclust 1.5 https://cran.r-project.org/web/packages/bclust/index.html
BenfordTests 1.2.0 https://cran.r-project.org/web/packages/BenfordTests/index.html
bisoreg 1.4 https://cran.r-project.org/web/packages/bisoreg/index.html
bit 1.1-12 https://cran.r-project.org/web/packages/bit/index.html
bit64 0.9-5 https://cran.r-project.org/web/packages/bit64/index.html
bitops 1.0-6 https://cran.r-project.org/web/packages/bitops/index.html
BMA 3.18.6 https://cran.r-project.org/web/packages/BMA/index.html
Bmix 0.6 https://cran.r-project.org/web/packages/Bmix/index.html
bnlearn 3.9 https://cran.r-project.org/web/packages/bnlearn/index.html
boa 1.1.8-1 https://cran.r-project.org/web/packages/boa/index.html
boot 1.3-18 https://cran.r-project.org/web/packages/boot/index.html
bootstrap 2015.2 https://cran.r-project.org/web/packages/bootstrap/index.html
bqtl 1.0-32 https://cran.r-project.org/web/packages/bqtl/index.html
BradleyTerry2 1.0-6 https://cran.r-project.org/web/packages/BradleyTerry2/index.html
brew 1.0-6 https://cran.r-project.org/web/packages/brew/index.html
brglm 0.5-9 https://cran.r-project.org/web/packages/brglm/index.html
bspec 1.5 https://cran.r-project.org/web/packages/bspec/index.html
bspmma 0.1-1 https://cran.r-project.org/web/packages/bspmma/index.html
BVS 4.12.1 https://cran.r-project.org/web/packages/BVS/index.html
C50 0.1.0-24 https://cran.r-project.org/web/packages/C50/index.html
calibrator 1.2-6 https://cran.r-project.org/web/packages/calibrator/index.html
car 2.1-2 https://cran.r-project.org/web/packages/car/index.html
caret 6.0-64 https://cran.r-project.org/web/packages/caret/index.html
catnet 1.14.8 https://cran.r-project.org/web/packages/catnet/index.html
caTools 1.17.1 https://cran.r-project.org/web/packages/caTools/index.html
cclust 0.6-20 https://cran.r-project.org/web/packages/cclust/index.html
class 7.3-14 https://cran.r-project.org/web/packages/class/index.html
clue 0.3-51 https://cran.r-project.org/web/packages/clue/index.html
cluster 2.0.3 https://cran.r-project.org/web/packages/cluster/index.html
coda 0.18-1 https://cran.r-project.org/web/packages/coda/index.html
coin 1.1-2 https://cran.r-project.org/web/packages/coin/index.html
CORElearn 1.47.1 https://cran.r-project.org/web/packages/CORElearn/index.html
corpcor 1.6.8 https://cran.r-project.org/web/packages/corpcor/index.html
corrplot 0.73 https://cran.r-project.org/web/packages/corrplot/index.html
crayon 1.3.1 https://cran.r-project.org/web/packages/crayon/index.html
cslogistic 0.1-3 https://cran.r-project.org/web/packages/cslogistic/index.html
cubature 1.1-2 https://cran.r-project.org/web/packages/cubature/index.html
cvTools 0.3.2 https://cran.r-project.org/web/packages/cvTools/index.html
data.table 1.9.6 https://cran.r-project.org/web/packages/data.table/index.html
Data.tree 0.7.0 https://cran.r-project.org/web/packages/data.tree/index.html
date 1.2-34 https://cran.r-project.org/web/packages/date/index.html
dbscan 0.9-7 https://cran.r-project.org/web/packages/dbscan/index.html
deal 1.2-37 https://cran.r-project.org/web/packages/deal/index.html
deepnet 0.2 https://cran.r-project.org/web/packages/deepnet/index.html
deldir 0.1-12 https://cran.r-project.org/web/packages/deldir/index.html
dendextend 1.1.8 https://cran.r-project.org/web/packages/dendextend/index.html
DEoptimR 1.0-4 https://cran.r-project.org/web/packages/DEoptimR/index.html
deSolve 1.13 https://cran.r-project.org/web/packages/deSolve/index.html
DiagrammeR 0.8.2 https://cran.r-project.org/web/packages/DiagrammeR/index.html
dichromat 2.0-0 https://cran.r-project.org/web/packages/dichromat/index.html
digest 0.6.9 https://cran.r-project.org/web/packages/digest/index.html
dlm 1.1-4 https://cran.r-project.org/web/packages/dlm/index.html
DMwR 0.4.1 https://cran.r-project.org/web/packages/DMwR/index.html
dplyr 0.4.3 https://cran.r-project.org/web/packages/dplyr/index.html
DPpackage 1.1-6 https://cran.r-project.org/web/packages/DPpackage/index.html
dse 2015.12-1 https://cran.r-project.org/web/packages/dse/index.html
DT 0.2 https://cran.r-project.org/web/packages/DT/index.html
dtw 1.18-1 https://cran.r-project.org/web/packages/dtw/index.html
e1071 1.6-7 https://cran.r-project.org/web/packages/e1071/index.html
earth 4.4.4 https://cran.r-project.org/web/packages/earth/index.html
EbayesThresh 1.3.2 https://cran.r-project.org/web/packages/EbayesThresh/index.html
ebdbNet 1.2.3 https://cran.r-project.org/web/packages/ebdbNet/index.html
ellipse 0.3-8 https://cran.r-project.org/web/packages/ellipse/index.html
emulator 1.2-15 https://cran.r-project.org/web/packages/emulator/index.html
ensembleBMA 5.1.2 https://cran.r-project.org/web/packages/ensembleBMA/index.html
entropy 1.2.1 https://cran.r-project.org/web/packages/entropy/index.html
EvalEst 2015.4-2 https://cran.r-project.org/web/packages/EvalEst/index.html
evaluate 0.8.3 https://cran.r-project.org/web/packages/evaluate/index.html
evdbayes 1.1-1 https://cran.r-project.org/web/packages/evdbayes/index.html
exactLoglinTest 1.4.2 https://cran.r-project.org/web/packages/exactLoglinTest/index.html
expm 0.999-0 https://cran.r-project.org/web/packages/expm/index.html
extremevalues 2.3.2 https://cran.r-project.org/web/packages/extremevalues/index.html
FactoMineR 1.32 https://cran.r-project.org/web/packages/FactoMineR/index.html
factorQR 0.1-4 https://cran.r-project.org/web/packages/factorQR/index.html
faoutlier 0.6.1 https://cran.r-project.org/web/packages/faoutlier/index.html
fBasics 3011.87 https://cran.r-project.org/web/packages/fBasics/index.html
fields 8.3-6 https://cran.r-project.org/web/packages/fields/index.html
filehash 2.3 https://cran.r-project.org/web/packages/filehash/index.html
fitdistrplus 1.0-6 https://cran.r-project.org/web/packages/fitdistrplus/index.html
flashClust 1.01-2 https://cran.r-project.org/web/packages/flashClust/index.html
FME 1.3.2 https://cran.r-project.org/web/packages/FME/index.html
fmsb 0.5.2 https://cran.r-project.org/web/packages/fmsb/index.html
foreach 1.4.3 https://cran.r-project.org/web/packages/foreach/index.html
forecast 7 https://cran.r-project.org/web/packages/forecast/index.html
forecastHybrid 0.3.0 https://cran.r-project.org/web/packages/forecastHybrid/index.html
Fórmula 1.2-1 https://cran.r-project.org/web/packages/Formula/index.html
fracdiff 1.4-2 https://cran.r-project.org/web/packages/fracdiff/index.html
fTrading 3010.78 https://cran.r-project.org/web/packages/fTrading/index.html
futile.logger 1.4.3 https://cran.r-project.org/web/packages/futile.logger/index.html
gam 1.12 https://cran.r-project.org/web/packages/gam/index.html
gamlr 1.13-3 https://cran.r-project.org/web/packages/gamlr/index.html
gclus 1.3.1 https://cran.r-project.org/web/packages/gclus/index.html
gdata 2.17.0 https://cran.r-project.org/web/packages/gdata/index.html
gee 4.13-19 https://cran.r-project.org/web/packages/gee/index.html
genetics 1.3.8.1 https://cran.r-project.org/web/packages/genetics/index.html
geoRglm 0.9-8 https://cran.r-project.org/web/packages/geoRglm/index.html
geosphere 1.5-1 https://cran.r-project.org/web/packages/geosphere/index.html
ggdendro 0.1-18 https://cran.r-project.org/web/packages/ggdendro/index.html
ggmap 2.6.1 https://cran.r-project.org/web/packages/ggmap/index.html
ggmcmc 0.8 https://cran.r-project.org/web/packages/ggmcmc/index.html
ggplot2 2.1.0 https://cran.r-project.org/web/packages/ggplot2/index.html
ggrepel 0.5 https://cran.r-project.org/web/packages/ggrepel/index.html
ggthemes 3.0.2 https://cran.r-project.org/web/packages/ggthemes/index.html
glmmBUGS 2.3 https://cran.r-project.org/web/packages/glmmBUGS/index.html
glmnet 2.0-5 https://cran.r-project.org/web/packages/glmnet/index.html
gmodels 2.16.2 https://cran.r-project.org/web/packages/gmodels/index.html
gmp 0.5-12 https://cran.r-project.org/web/packages/gmp/index.html
gnm 1.0-8 https://cran.r-project.org/web/packages/gnm/index.html
GPArotation 2014.11-1 https://cran.r-project.org/web/packages/GPArotation/index.html
gridBase 0.4-7 https://cran.r-project.org/web/packages/gridBase/index.html
gridExtra 2.2.1 https://cran.r-project.org/web/packages/gridExtra/index.html
growcurves 0.2.4.0 https://cran.r-project.org/web/packages/growcurves/index.html
grpreg 2.8-1 https://cran.r-project.org/web/packages/grpreg/index.html
gss 2.1-5 https://cran.r-project.org/web/packages/gss/index.html
gsubfn 0.6-6 https://cran.r-project.org/web/packages/gsubfn/index.html
gtable 0.2.0 https://cran.r-project.org/web/packages/gtable/index.html
ggtern 2.2.0 https://cran.r-project.org/web/packages/ggtern/index.html
gtools 3.5.0 https://cran.r-project.org/web/packages/gtools/index.html
haplo.stats 1.7.6 https://cran.r-project.org/web/packages/haplo.stats/index.html
hash 2.2.6 https://cran.r-project.org/web/packages/hash/index.html
hbsae 1 https://cran.r-project.org/web/packages/hbsae/index.html
hdrcde 3.1 https://cran.r-project.org/web/packages/hdrcde/index.html
heavy 0.3 https://cran.r-project.org/web/packages/heavy/index.html
HH 3.1-25 https://cran.r-project.org/web/packages/HH/index.html
HI 0.4 https://cran.r-project.org/web/packages/HI/index.html
Highcharter 0.5.0 https://cran.r-project.org/web/packages/highcharter/index.html
Hmisc 3.17-3 https://cran.r-project.org/web/packages/Hmisc/index.html
HSAUR 1.3-7 https://cran.r-project.org/web/packages/HSAUR/index.html
ifultools 2.0-1 https://cran.r-project.org/web/packages/ifultools/index.html
intervals 0.15.1 https://cran.r-project.org/web/packages/intervals/index.html
ipred 0.9-5 https://cran.r-project.org/web/packages/ipred/index.html
irlba 2.0.0 https://cran.r-project.org/web/packages/irlba/index.html
irr 0.84 https://cran.r-project.org/web/packages/irr/index.html
iterators 1.0.8 https://cran.r-project.org/web/packages/iterators/index.html
jpeg 0.1-8 https://cran.r-project.org/web/packages/jpeg/index.html
kernlab 0.9-24 https://cran.r-project.org/web/packages/kernlab/index.html
KernSmooth 2.23-15 https://cran.r-project.org/web/packages/KernSmooth/index.html
KFKSDS 1.6 https://cran.r-project.org/web/packages/KFKSDS/index.html
kinship2 1.6.4 https://cran.r-project.org/web/packages/kinship2/index.html
kknn 1.3.1 https://cran.r-project.org/web/packages/kknn/index.html
klaR 0.6-12 https://cran.r-project.org/web/packages/klaR/index.html
knitr 1.12.3 https://cran.r-project.org/web/packages/knitr/index.html
labeling 0.3 https://cran.r-project.org/web/packages/labeling/index.html
lars 1.2 https://cran.r-project.org/web/packages/lars/index.html
lattice 0.20-33 https://cran.r-project.org/web/packages/lattice/index.html
latticeExtra 0.6-28 https://cran.r-project.org/web/packages/latticeExtra/index.html
lava 1.4.1 https://cran.r-project.org/web/packages/lava/index.html
lavaan 0.5-20 https://cran.r-project.org/web/packages/lavaan/index.html
lazyeval 0.1.10 https://cran.r-project.org/web/packages/lazyeval/index.html
leaps 2.9 https://cran.r-project.org/web/packages/leaps/index.html
LearnBayes 2.15 https://cran.r-project.org/web/packages/LearnBayes/index.html
LiblineaR 1.94-2 https://cran.r-project.org/web/packages/LiblineaR/index.html
LICORS 0.2.0 https://cran.r-project.org/web/packages/LICORS/index.html
limSolve 1.5.5.1 https://cran.r-project.org/web/packages/limSolve/index.html
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