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Get better with each session of Data Science Training. Talk and understand the language of data and communicate your findings with different techniques and tools that you will gain expertise with the help of this online Data Science Training.

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What are the limitations of linear regressions?

It is limited to Linear Relationships. Through its nature, linear regression only looks at linear relationships among dependent & independent…

Data Science · R

1 Answer · 1.4K Views · Answered ✓

Asked by: seema Deshpande · 6 years ago

What are outliers? How can we detect or treat them?

An outlier is a perception point far off from different perceptions. It may be because of a difference in the estimation. It can likewise demonstrate…

Data Science · R

1 Answer · 1.6K Views · Answered ✓

Asked by: Dylan Forsyth · 6 years ago

How can learning curves help create a better model?

Learning curves provide the sign of the presence of underfitting or overfitting In a learning curve, the training error and cross-validating error…

Data Science · R

1 Answer · 1.5K Views · Answered ✓

Asked by: Tammie Sudderth · 6 years ago

How to convert a bar histogram into a line histogram in R?

The histograms are meant to be bars but representing them as a continuous line makes more visual sense. Using default R graphics (i.e. without…

Data Science · R

1 Answer · 1.5K Views · Answered ✓

Asked by: Pavithra Shah · 6 years ago

How do you plot multiple LME residual plots in one device?

stuff from the grid() package can be used to set up viewports, etc., but the simplest method is with the grid.arrange() function from the gridExtra…

Data Science · R

1 Answer · 1.0K Views · Answered ✓

Asked by: Dylan Powell · 6 years ago

How to perform sensitivity analysis?

Suppose after log transformation we have following equation logy = 3.651 + 0.648*logind1 + 0.915*logind2 Now we will be doing sensitivity analysis…

Data Science · R

1 Answer · 1.6K Views · Answered ✓

Asked by: Dan Peters · 6 years ago

How to choose the value of the regularisation parameter (λ)?

Choosing the regularisation parameter is a complicated business. If the value of λ is very high, it would lead to very small values of the regression…

Data Science · R

1 Answer · 1.1K Views · Answered ✓

Asked by: Suzanna Hinojos · 6 years ago

How to use ggplot to plot probability densities?

ggplot2 has a stat_function() function to superimpose a function on a plot in much the same way as curve() does. I struggled a little bit to get this…

Data Science · R

1 Answer · 1.4K Views · Answered ✓

Asked by: Arjun Arora · 6 years ago

What is the Q-Q plot in linear regression model?

As it is clear with name, the Q-Q plot is a graphical plotting of the quantiles of two distributions with respect to each other. In other words we…

Data Science · R

1 Answer · 5.2K Views · Answered ✓

Asked by: tom Ellison · 6 years ago

What's so bad about collinearity?

To start with, it is the matter of collinearity not correlationThe two are connected, however not indistinguishable. Collinearity includes sets of…

Data Science · Natural Language Processing

1 Answer · 1.7K Views · Answered ✓

Asked by: Dominic Poole · 6 years ago

How to add line plots to ggplot2 in a loop?

We can define the data that is used in a ggplot layer with the data argument: pl = pl + geom_line(data = df, aes(x = x, y = y), linetype = lt, colour…

Data Science · Machine Learning

2 Answers · 2.9K Views · Answered ✓

Asked by: Suhani Rodrigues · 6 years ago

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