MVC tutorial that doesn’t rely on a framework? [closed]

Almost every framework does MVC differently, so you might end up getting even more confused. The general principles of MVC are very simple: “Model is state; view reacts to model; controller reacts to view; controller changes model”. The model, view and controller are concepts – they are whatever you feel them to be. Classes, bunches … Read more

Sample http range request session

The following exchange is between Chrome and a static web server, retrieving an MP4 video. Initial request – for the video. Note the Accept-Ranges response header to indicate the server has range header support: GET /BigBuckBunny_320x180.mp4 Cache-Control: max-age=0 Connection: keep-alive Accept-Language: en-GB,en-US,en Host: localhost:8080 Range: Accept: text/html,application/xhtml+xml,application/xml,*/* User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 … Accept-Encoding: … Read more

How to split data into training/testing sets using sample function

There are numerous approaches to achieve data partitioning. For a more complete approach take a look at the createDataPartition function in the caret package. Here is a simple example: data(mtcars) ## 75% of the sample size smp_size <- floor(0.75 * nrow(mtcars)) ## set the seed to make your partition reproducible set.seed(123) train_ind <- sample(seq_len(nrow(mtcars)), size … Read more