We have theConfusion Matrixto deal with and evaluate Classification algorithms. While R square is an important error metric to evaluate the predictions made by a regression algorithm. R squared (R2)is a regression error metric that justifies the performance of the model. It represents the value o...
so you can feel more confident that you know what that true proportion is. These confidence interval techniques can be applied to find the exact confidence interval of a mean in R, calculate confidence interval from a p value, or even compute an exact confidence interval for...
Statisticians have devised several ways to locate the outliers in a dataset. The most common methods include the Z-score method and the Interquartile Range (IQR) method. However, I prefer the IQR method because it does not depend on the mean and standard deviation of a dataset and I’ll b...
calculate SMAPE smape(actual, forecast) [1] 0.09721348 It indicates that the symmetric mean absolute percentage error for this model is 9.72%. Timeseries analysis in R » Decomposition, & Forecasting » Approach 2: Function The above-mentioned approach is one of the easiest ways to calculate ...
diff_abs<-abs(diff)# Calculate absolute differencediff_abs# Print output to RStudio console# 15 In this example, we calculated the absolute difference. However, of cause you can calculate the absolute value not only for differences, but also for a correlation, a mean or any other numeric va...
How To Be MEAN: Reactive Programming By Ted Neward | June 2018 Welcome back again, MEANers. In the previous two articles (msdn.com/magazine/mt829391 and msdn.com/magazine/mt814413), I talked a great deal about what Angular refers to as “template-driven forms,” wh...
It’s a software layer that sits “on top” of MongoDB and provides not only a schema-like language-verified validation layer, but also an opportunity to build a layer of “domain object” into the server-side code. Hence, it’s sort of “the other ‘M’” in the MEAN stack. ...
How To Be MEAN: Type Script with TypeScriptBy Ted Neward | January 2017Welcome back, MEANers.As this series on MEAN progressed over the last year and a half, one of the interesting changes to the topic list was to the “A” part of the series’ name: Angular...
Learn about factor analysis - a simple way to condense the data in many variables into a just a few variables.
Welcome back again, MEANers. All throughout this series, the focus has been about Angular; specifically, using Angular to display data and route through multiple pages. As much as the Web browser is built to be able to display data, however, it’s also intended to be able to gather data...