what do data scientists do
Post on 19-Dec-2015
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What do Data Scientists do?Define the questionDefine the ideal data setDetermine what data you can accessObtain the dataClean the dataExploratory data analysisStatistical Prediction/ ModelingInterpret resultsChallenge resultsSynthesize/ write up resultsCreate reproducible codeDistribute results to other peopleHow to ask an R question?What steps will reproduce the rpoblemWhat is the expected outputWhat do you see insteadWhat version of the product (eg, R, packages, etc) are you usingWhat operating systemHow to as a data analysis question?What is the question you are trying to answerWhat steps/ tools did you use to answer itWhat did you expect to seeWhat do you see insteadWhat other solutions have you thought aboutTypes of Data Analysis Question in order of difficultyDescriptiveExploratoryInferentialPredictiveCausalMechanisticMost important thing is the questionGood experiments have good replicationmeasure variabilityGeneralize to the problem you care aboutAre transparentPrediction is not inferenceBeware data dredging
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