Can a QlikView developer be a Qlik Sense developer?
@Azharuddin wrote: QlikView developers (as per the book QlikView 11 for Developers) were those of us who wrote load scripts, designed data models, formulated expressions, and manipulated QlikView...
View ArticleData Preprocessing
@Darkrider19 wrote: Hi,I have below mentioned concerns/doubts:-1) Imputation of test dataset :- some suggest adding replacing NA with -1. What is the logic behind it. Does it work for almost all the...
View ArticleImputing Location Data
@Darkrider19 wrote: I have a dataset containing information about location of an object. I have the latitudes and longitudes. But they have missing values.I wanted to convert this information to...
View ArticleHardware configuration for running Deep learning
@sandipkhaire wrote: Hello Everyone,I am going to buy new laptops for data science projects(e.g kaggle,AV hackathons) ,so i need your help regarding what should be the system configuration so that i...
View ArticleWhat protocol should I use for LoadRunner when recording Oracle's Primavera...
@jessica210 wrote: LoadRunner/VUGen version: 9.5 Oracle Primavera P6 PPM version: 7.0.0 I used the protocol analyzer already. It recommends COM/DCOM, LDAP, Win Sockets. I already tried recording my...
View ArticleDetermining the weights assigned to each model in Gradient Boosting
@pranjalk wrote: Hi!I have been trying to understand the gradient boosting algorithm in which I came across a fact that in GBM a new model let f2(x) is fit on the errors that resulted from the...
View ArticleLinearity- NonGraphical
@tillutony wrote: Hi Experts, is there a way to determine linearity between dependent variable and multiple independent variables non graphically other than correlation(strength )insights much...
View ArticleHow is the final part after Model building is presented to business?
@ssvbalan wrote: After we build a logistic regression model , ie. even after model validations like Concordant-disconcordant pair, lift gain curve, ROC curve, AUC, Confusion matrix .How it is...
View ArticleWhat happens if linear regression is applied on non-normal distribution?
@vikas_10 wrote: hello everyonei am working on a model in which i want to use linear regression for making predictions. while doing data exploration in python, i came to know that distribution of a...
View ArticleSAS Predictive modeling
@Archita wrote: Hi,I am new here .Currently learning SAS. I want to learn predictive modeling . As of now following the learning path . Is there any other good resource for learning predictive...
View ArticleHow to predict the items a customer will buy in next transaction?
@Selvavm wrote: I am new to data science and I did follow some online examples on recommendation engine for movies. So forgive me if I am asking wrong questions. Consider there is a huge user online...
View ArticleData for tutorial on Essential Machine Learning Algorithms with Python & R codes
@analytica wrote: Hello, Pls i'd like to know where to obtain the train and test datasets for the tutorial on "Essential Machine Learning Algorithms with Python and R codes". Thanks Posts: 1...
View ArticleAutomation in Data Science/Machine Learning/Big Data
@VijaySai wrote: As we all know that by the end of 2017, Indian IT market is going to be affected due to Automation, Are the Data Science/ML/BigData jobs going to be affected due to Automation? I am...
View ArticleCalculate Price Elasticity Of Demand with limited data
@ds_sr wrote: I have historical sales 2 years of data for multiple customers and products at daily level and objective is to calculate price elasticity of demand for these customers. Variables in data...
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Adding summary stat such as mean, median, mode on ggplot
@ashish25sahu wrote: This plot seems to showing vertical lines on histogram plot for price distibution of diamond data.How can I add both median plus mean line on x axis using ggplot. Posts: 1...
View ArticleCommonly used methods on real time data in companies for the following:
@ssvbalan wrote: Missing Value imputation - Any particular method??? Outlier Detection - Only visual diagrams like boxplot (or) any particular method like Cooks D value?? To check Linearity Posts: 2...
View ArticleHow do we check the model robustness? pls explain it for logistic regression...
@ssvbalan wrote: What is model Robustness?Is there any specific methods for different algorithms? Posts: 1 Participants: 1 Read full topic
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How to calculate confidence interval in the acf and the pacf graph?
@apoddar573 wrote: https://www.analyticsvidhya.com/blog/2016/02/time-series-forecasting-codes-python/ Here, a confidence interval is taken in the acf and the pacf graph? How has that been calculated?...
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Python: How to use box-cox to transform right skewed data to normal...
@shubham.jain wrote: Hello.I was solving big mart sales problem from Analytics Vidhya. Here, one of the feature 'Item_Visibility' has distribution has shown below. I tried using the code: from...
View ArticleComparing Data Science Platform Capabilities
@dsdev wrote: I want to understand and evaluate the cost of building a data science platform that has the capabilities listed on this excel sheet - https://ethercalc.org/cvbgijkurh26. Can someone...
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