I try to run a simple regression script in Power BI but I get this message in Power BI:
DataSource.Error: ADO.NET: R script error. Error in eval(predvars, data, env) : object 'price' not found Calls: lm ... eval -> -> model.frame.default -> eval -> eval Execution halted Details: DataSourceKind=R DataSourcePath=R Message=R script error. Error in eval(predvars, data, env) : object 'price' not found Calls: lm ... eval -> -> model.frame.default -> eval -> eval Execution halted ErrorCode=-2147467259 ExceptionType=Microsoft.PowerBI.Scripting.R.Exceptions.RScriptRuntimeException
This simple regression script runs well in R Studio. What's wrong? Any idea?
Please find below the raw data.
You can modify your R script below:
Regression <- lm(price ~ horsepower + enginesize, data=dataset) #Show the results summary(Regression) with(dataset,plot(horsepower,enginesize)) abline(Regression)
Thanks for your reply and suggestions. I was wondering with summary (regression) script, shouldn't I see the coefficients of the model in Power BI as below:
Min 1Q Median 3Q Max
-11180 -1908 -201 1629 13277
Coefficients: Estimate Std. Error t value Pr(>|t|)
(Intercept) -8510.47 843.84 -10.085 < 2e-16 ***
horsepower 60.21 12.24 4.917 1.85e-06 ***
enginesize 122.44 11.01 11.118 < 2e-16 ***
Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
Residual standard error: 3678 on 196 degrees of freedom
Multiple R-squared: 0.7896, Adjusted R-squared: 0.7875
F-statistic: 367.8 on 2 and 196 DF, p-value: < 2.2e-16
If that is not feasable in Power BI please let me know
The summary (regression) result you mention is returned in R studio Console pane not in Plots pane. You need to ensure the result can be plot in Plots pane in R studio, then you can use the R script in Power BI to visualize data. For example, in my previous post, I use abline() to plot a chart.
Thanks for your prompt response.
My aim is to display the summary of my regression analysis in Power BI as it does appear in R studio pane rather than the graph of the correlation between the two explanatory variables.
How can this be done?
Thanks very much
Till now, it's almost the R issue instead of Power BI visual. As I mentioned before, you might need to write R script to ensure Summary(regression) result display in Plots pane within R studio. Then you can use the same script in Power BI desktop to plot the visual.
Would you please share the R script?
If possible, please share pbix file as well. You can upload it to your OneDrive and send the share link to me via private message.
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