Node 16 was no longer going to be supported so I wanted to update my AWS Lambda app that validates Google Recaptcha via REST to the latest version (NodeJS v20). You may have to change some of the things around below, but it is working for me (proof is this websites Contact form; feel free to say Hello if this worked for you). I also posted the solution on StackOverflow:

Picostat was a web application I created with Drupal 7/8/9. It had support for embedding datasets in webpages after they have been imported. I no longer maintain that project, but I transferred over the iframe functionality to pmagunia.com. You can see the code in a sample dataset page like the kmenta dataset. On that page you will find the iframe HTML code like this:

Below is a screenshot of Tableau dashboard I created while taking CS 416 at the University of Illinois at Urbana-Champaign. It shows the relationship between poverty and education in the counties of Pennsylvania. You can see the general trend is negative. In other words, as more and more people become educated, the respective poverty level of their counties decreases. You can visit and interact with the dashboard on the Tableau page on my website. The following is some question and answer about my Tableau app.

I wanted to turn a PDF into text I could copy and paste so I turned to AWS Rekognition. The console only accepted files that were 5 MB. Mine was 13 MB so I had to use the console with asynchronous methods.

The most common terms found in subtraction and division arithmetic are listed below. If you find any math errors, you may reach out to North Penn Networks using the contact form. $ a-b=c $ minuend the first number in a subtraction operation; the subtrahend is taking away from this number; the minuend is $a$ subtrahend the second number in a subtraction operation; the amount taken away from the minuend; the subtrahend is $b$ difference the result of taking the subtrahend from the minuend; the difference is $c$ $ a \div b = c $ dividend the number being divided, $a$...

The word 'fraction' comes from the Latin 'fractus' which means 'broken.' A fraction is written as one number above another number with a line called the vinculum separating the two. The number on top is called the numerator which tells us the size of the quantity that is is going to be broken up. The denominator which is the number on the bottom tells us into how many pieces we are going to break up the numerator. All the divided pieces will be of the same size, and the size of the remaining pieces is what the fraction is equal...

This page discusses cardinality, a basic topic found in classes like Sets, Relations and Functions and also Real Analysis. Definitions with discussion follow. numerically equivalent two sets are numerically equivalent if there exists a one-to-one function from one set onto the other. We can also say two sets have the same cardinal number if this is true. </dl> If we can say that a set has $n$ elements where $n$ is a specific element of the natural numbers, then we can say that particular set is countable. If each element in a infinite set can be paired with a natural...

This page discusses Logic and Quantifiers found in many Real Analysis and logic classes. Definitions with discussion follow. proposition an assertion that is either true or false but not both. A proposition is called simple or atomic if it is made up of only one proposition. A proposition is compound if it consists of one or more simple propositions with one or more logical connectives. logical connective joins simple propositions together to create a new proposition which may differ in truth value truth value the validity of a proposition. The truth value of a statement may be true or false...

Factor to factor means to write as a product Factor 6 $ 6 = 2 \cdot 3 $ When factoring, it is often useful to list only the prime factors. Usually, we do not list 1 as a factor. Prime A prime number is a natural number (positive, whole) only divisible by 1 and itself. A prime number must also be greater than 1. 2 is the first prime number. 2 is the only even prime number. Composite A composite number is a natural number greater than 1 that is not prime. Factor 26 $ 2 \cdot 13 $ Factor...

A partial order is a relation that satisfies three requirments:

This page discusses sets, a topic that forms the foundation of arithmetic and real analysis alike. set a collection element a member of a set. We denote $x$ is a element of set $S$ by $x \in S$ empty set, $\varnothing$ the set with no elements subset a set $S$ is a subset of $T$, written $S \subset T$, if $ \forall x$ if $ x \in S \Rightarrow x \in T $ finite set a set in which each element can be matched with exactly one element of the set $\{1, 2, ..., n\}$ set equality two sets $S$...

The real number system, $\mathbb{R}$, is a ring, $R,$ definined on the quotient set of all rational Cauchy sequences such that the operations of addition and multiplication are defined as follows: $$[a_n] + [b_n] = [a_n + b_n] \\ [a_n][b_n] = [a_n b_n] $$

Common types of numbers found in Arithmetic. Integer any whole number including 0 such as 1, 2, or 3. $\frac{1}{2}$ is not a integer. $0.333\bar{3}$ is not an integer. $\frac{6}{3}$ is an integer even though it is a fraction because it reduces to 2 which is an integer. Negative whole numbers are also integers. The symbol for integers in mathematics is $\mathbb{Z}$ named after the German word 'zahlen.' Even Number Any number, $n$, that can be expressed as a multiple of 2. Now, 0 is an even number because $0 = 2 \cdot 0$. Negative numbers which are multiples of...

In the last section, we took a first look at the some of the conditions necessary for a binomial experiment. Let's examine the binomial distribution more closely by examining the method to calculate the probability of getting a particular outcome for a series of bernoulli trials.

Suppose we conducted our experiment from the last section, and we got three heads. That is getting 2 fewer heads than would be expected by chance alone if the coin is indeed fair. Now we need to calculate the p-value of the experiment. The p-value is the probability of obtaining a test statistic at least as extreme as the observed value. In this case, our observed value is three. More extreme cases would be if we flipped the coin and we get 0, 1, or 2 heads. However, this is a two-sided test so we can get extreme cases on...

The mean is an another name for the average. You can think of the mean as a typical representative value of all the observations in a set. The standard deviation is a measure of the “spread” of the data. For example, if in a set of observations, the data was not concentrated around the mean, then that dataset would have a high standard deviation. If all the data, was concentrated around some single value, then that dataset would have a low standard deviation. The standard deviation squared is the variance. Another name for these measurements are moments.

In statistics, we are often interested in the population which is some entire set of entities that share a common trait. We often draw a sample which is a subset of the population to draw inferences about the population. The set of measurements taken from the sample form the sample data.

A numeral system is a way of representing numbers, not to be confused with number systems which classify numbers based on properties.

The most basic fraction operations are addition and multiplication. So let's start there. There are two simple rules to follow when we add or multiply fractions.

Hexadecimal is different from binary and decimal notation (base 10) in that there are sixteen unique digits whereas in decimal we have ten. Since we have sixteen digits we have to designate six new digits which are the letters A, B, C, D, E, and F. 'A' stands for 10, 'B' is 11, 'C' 12, 'D' 13, 'E' 14, and 'F' is 15.

Suppose we had a fraction like $\frac12,$ and we wanted to convert it to decimaldecimal notation. All we have to do is divide 2 into 1 like this:

2019 was a very good year thanks to two contracts that took place at the beginning and end of the year. Both were related to Drupal with some hints of AWS. I got to configure load balancers and also a large RDS MySQL instance. I signed non-disclosure agreements with my client's so I'm not able to mention their name though one of them was a large food service company based out of the midwest US and the other was for a travel sight that sees a lot of visitors. As I'm currently a student at the University of Illinois at...

I used to have a number of R Datasets available for download and visual inspection. They were cloned from the datasets found in R, and I created Slickgrid-enabled webpages out of the data for easy inspection. I also added support for dataset management and basic statistical operations. At one point there were 3,000 visitors to the site every month.

North Penn Networks Limited, hereafter known as I, or me, has a strong commitment to privacy on the Internet. I want my site to be useful and informative to you. You may thus have the opportunity to provide personal information and data through my site. This Statement sets forth my privacy policy for this website and describes the procedures I follow to respect the privacy of visitors to this site and their information. If you are merely visiting my website, you are not required to provide any personal information. If you would like to learn more about me, you will...