In this tutorial you will learn how to create your own custom functions in PHP. PHP Built-in Functions A function is a self-contained block of code that performs a specific task. PHP has a huge collection of in
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How to Make a Histogram with ggplot2 Now we can create the histogram. Regardless of the type of graph we are creating in ggplot2, we always start with the ggplot() function, which creates a canvas to add plot elements to. It takes two parameters. The first argument is a data frame....
Also inside theggplot()function, you’ll find a call to theaes()function. Theaes()function enables you to “map” variables to aesthetic attributes in your visualization. That might sound complicated, but it’s really just about connecting variables in your dataframe to axes and other attribute...
Usually when I write my own code, I try to make my functions vectorized, so that you can call them with both a single element or with a vector. But in this case, I wasn’t allowed to modify the code to make the function vectorized. So how do we easily vectorizepatient_name()without...
Now, here’s how to make a CV of your own that’s just as good: 1. Choose the Right Format for Your CV Picture yourself landing an interview for that job you want. Would you dress up in your best outfit, hoping it will convey your professionalism? Or would you arrive in a t-sh...
Let’s look at the first few rows of data using thehead()function head(home_data, 5) Creating Histograms with Base R Next, we will create a histogram using thehist()function to look at the distribution of prices in our dataset.
The case_when function is part of thedplyrlibrary in R. Having said that, you’ll need to importdplyrexplicitly or import thetidyversepackage (which includesdplyr). You can do that by running the following: library(dplyr) Or alternatively, you can import the Tidyverse like this: ...
In R, we can set a random seed to make the output of our R code reproducible. By setting a specific seed, the random processes in our script always start at the same point and hence lead to the same result. Let’s do this in practice… ...
R programming has three ways of assigning values to a variable. They are =, <-, and the assign function. The assign function has the basic format of assign(“variable”, value) where “variable” is the name of the variable receiving the values, note that it needs to be in quotes, an...