Datascience24

The text is Mastering Spark with R. Create a new connection to your Spark cluster -. sc Make sure that you are using the correct version of Java Execute the following code: >summarize_all(cars, max) >summarize_all(cars, min) >summarize_all(cars, mean) >summarize_all(cars, mean)%>% show_query() >cars %>% mutate(transmission = ifelse(am ==0, "automatic", "manual")) %>% group_by(transmission) %>% summarize_all(mean)

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Week 4

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Use the correct command to show the Spark Web interface with the first tab selected. Submit a Word document with a screen shot of your Spark Jobs page showing a timestamp from your computer.

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Week 3

The text is Mastering Spark with R. After installing the dplyr library, use the following code in R studio, create a scatter plot of hp v. mpg cars2 <- copy_to(sc, mtcars) cars3 <- (cars2) cars4 <- select(cars3, hp, mpg) cars5 <- sample_n(cars4, 32) cars6 <- collect(cars5) plot(cars6)

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Week 2

Following the instrutions in the book, install the sparklyr library and a Spark cluster on your local machine. The instructions in the book contemplate that you will be using Windows. If you are not running Windows, use a virtual machine. If you are using your employer's equipment, you may enounter a trusted domain error. This will also require that you install a virtual machine. The code in the book assumes Spark version 2.3 and Java 8. You are free to use any version, of course, but the co...

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Week 1

Submit a Word or .pdf document with screen shots of R Studio where you have created a vector of three words. Whenever you are asked to submit a screenshot, include either a sliver of your desktop or a timestamp from your desktop. Always repeat the question you are answering.

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The_Story_of_E-Patient_Dave

The Story of E-Patient Dave Chapter Two begins with a case study using an actual patient. Read the case study, “The Story of E-Patient Dave.” Develop your initial response to the below questions. Number your paragraphs to correspond to the questions. First, describe want went wrong on Google Health. How does what went wrong relate to our initial understanding of (1) healthcare data, (2) information, and (3) knowledge? Make sure you address all three in your response. Finally, identify o...

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Impact_of_Bias_On_Machine_Learning

Using the Watson article as an example, write a five paragraph single spaced essay discussing bias in data and it's effect on machine learning.

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Compliance_in_HealthcareInformatics

Why is Compliance Important in Healthcare Informatics?

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Database_design_for_Safety_&_Quality

What are some ways in which database design can impact healthcare safety and quality? How does scope impact the ability for users to ask and answer potentially important clinical questions?