Power BI 服務支援檢視使用 R 指令碼建立的視覺效果,並與其互動。 以 R 指令碼建立的視覺效果通常稱為「R 視覺效果」,可以使用 R 豐富的分析和視覺效果功能呈現進階的資料成形和分析,例如預測。

注意︰R 程式設計語言是統計學家、資料科學家和商務分析師使用最廣泛的程式設計語言之一。 R 語言有一個開放原始碼社群,提供了逾 7000 種的附加元件封裝,以及廣為大眾使用的 R 使用者群組。 部署在 Power BI 服務中的 R 版本是 *Revolution R Open 3.2.2*。

下圖顯示的 Power BI 儀表板,使用了一系列用於進階分析的 R 視覺效果。

R 視覺效果建立在 Power BI Desktop 報表中,如下圖顯示的報表。

一旦在 Power BI Desktop 中建立了報表,您就可以將包含一或多個 R 視覺效果的報表發行到 Power BI 服務。 R 視覺效果目前僅能在 Power BI Desktop 中建立,然後發行到 Power BI 服務。 如需有關建立 R 視覺效果的詳細資訊,請參閱 使用 R 建立 Power BI 視覺效果 (Power BI Desktop)

請注意,服務並不支援所有的 R 封裝。 如需 Power BI 服務目前支援的封裝清單,請在本文結尾參閱支援的封裝。

您可以下載這份範例 Power BI Desktop 檔案 (.pbix 檔案),其中包含數個 R 視覺效果,可供您查看運作方式及進行實驗。

Power BI Desktop 中建立、然後發行到 Power BI 服務的 R 視覺效果,絕大多數的行為就如同 Power BI 服務中的其他視覺效果;您可以與其互動,加以篩選、配量以及釘選到儀表板,或與他人共用。 如需共用儀表板和視覺效果的詳細資訊,請參閱 與同事和其他人共用儀表板。 R 視覺效果和其他視覺效果的不同之處在於無法顯示工具提示,也無法用於篩選其他視覺效果。

如下圖所示,Power BI 服務中的 R 視覺效果無論在儀表板或報表中,大部分的表現及行為都和任何其他視覺效果一樣,因此使用者不需要留意建立視覺效果的基礎 R 指令碼。

R 指令碼安全性

R 視覺效果是從 R 指令碼建立,可能包含具有安全性或隱私權風險的程式碼。

這些風險主要存在於指令碼作者在自己的電腦上執行指令碼時的撰寫階段。

Power BI 服務套用「沙箱」技術,保護使用者與服務免於安全性風險。

這種「沙箱」方法會對 Power BI 服務中執行的 R 指令碼施加某些限制,諸如存取網際網路,或存取建立 R 視覺效果時非必要的其他資源。

R 指令碼錯誤體驗

當 R 指令碼發生錯誤時,R 視覺效果不會進行繪製,而且會顯示錯誤訊息。 如需錯誤的詳細資料,請從畫布的 R 視覺效果錯誤中選取 [查看詳細資料],如下圖所示。

下圖顯示另一例,當 R 指令碼因為 Azure 遺漏 R 封裝而無法正確執行時,會出現錯誤訊息。

授權

R 視覺效果需要 Power BI Pro 授權才能呈現在報表、重新整理、篩選和交叉篩選中。 如需 Power BI Pro 授權的詳細資訊,以及和免費授權有何差異,請參閱何謂 Power BI Pro 內容?

Power BI 的免費使用者只能取用共用的磚。 如需詳細資訊,請參閱購買 Power BI Pro

下表依授權說明 R 視覺效果的功能。

已知的限制

Power BI 服務的 R 視覺效果有某些限制︰

  • R 視覺效果支援限於下頁 提及的封裝。 目前不支援自訂封裝。

  • 資料大小限制 – R 視覺效果用於繪製的資料限制為 150,000 個資料列。 如果選取超過 150,000 個資料列,則只會使用前 150,000 個資料列,而且影像上會顯示訊息。

  • 計算時間限制 - 如果 R 視覺效果計算超過 60 秒,指令碼會逾時並導致錯誤。

  • R 視覺效果會在資料更新、篩選及反白顯示時進行重新整理。 不過,影像本身不會互動,也不支援工具提示。

  • R 視覺效果會回應反白顯示的其他視覺效果,但您不能點選 R 視覺效果中的項目,無法交叉篩選其他項目。

  • 「時間」資料類型目前不支援 R 視覺效果。 請改用日期/時間。

  • 使用 [發行至 Web] 時不會顯示 R 視覺效果。

  • 儀表板和報表列印目前不會列印 R 視覺效果

  • Analysis Services 的 DirectQuery 模式目前不支援 R 視覺效果

支援的封裝

R 套件概觀

R 套件是以定義完善的格式所合併的 R 函式、資料和已編譯程式碼集合。 R 在安裝時隨附一組標準套件,並且有其他套件可供下載和安裝。 安裝之後,必須將 R 套件載入至要使用的工作階段。 可用 R 套件的主要來源是 CRAN,即 Comprehensive R Archive Network

Power BI Desktop 可以使用任意類型的 R 套件,沒有任何限制。 您可以自行安裝 R 套件,以用於 Power BI Desktop (例如,使用 RStudio IDE)。

本文稍後之<支援的套件>一節中所找到的套件支援 Power BI 服務中的 R 視覺效果。 如果您在支援的套件清單中找不到感興趣的套件,則可以要求支援套件。

要求新 R 套件的支援

下節 (標題為<支援的套件>) 可以找到 Power BI 服務支援的 R 套件。 如果您想要要求支援該清單中找不到的 R 套件,則可以將包含要求的電子郵件傳送至 Power BI 意見反應小組中的 R

R 套件的需求和限制

有少數 R 套件的需求和限制:

  • Power BI 服務大部分支援具有 GPL-2、GPL-3、MIT+ 等這類免費和開放原始碼軟體授權的 R 套件。
  • Power BI 服務支援 CRAN 中所發行的套件。 服務不支援私人或自訂 R 套件。 我們鼓勵使用者先製作其在 CRAN 上可用的私人套件,再要求 Power BI 服務中可用的套件。

  • Power BI Desktop 具有 R 套件的兩個變化:

    • 針對 R 視覺效果,您可以安裝任何套件 (包含自訂 R 套件)
    • 針對自訂 R 視覺效果,公用 CRAN 套件僅支援自動安裝套件
  • 基於安全性和隱私權考量,我們目前不支援服務中透過全球資訊網提供用戶端-伺服器查詢的 R 套件 (例如 RgoogleMaps)。 會封鎖這類嘗試的網路功能。 Power BI 服務無法支援下列 R 套件:

    • RgoogleMaps (封鎖網路功能)
    • mailR (封鎖網路功能)
    • RevoScaleR (只隨附 Microsoft R Server)
  • 包含新 R 套件的核准程序具有樹狀結構的相依性;無法支援需要在服務中安裝的一些相依性。

支援的封裝:

套件 版本 連結
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
公式 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
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