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Hi, Good morning / afternoon / evening. I’m ponpokorin ( @ponpokorin_24 ). This time, I would like to introduce rare headphone… no, no, earspeaker “STAX SR-L series” to you from Japan. It is possible to talk like listening to music through speakers, and it does not give a feeling of pressure to the ears, so it is called “earspeaker”. The price is high, but please check out this earspeaker series because it has a variety of unique features. In addition, since the voltage etc. differs depending on the country, if you want to buy it, please buy it from your local distributor or contact STAX. Table of Contents Where can we try it? Appearance check Light review Afterword Where can we try it? Before introducing the unique features, I would like you to try it when you come to Japan, so I would like to introduce places where you can try it in Japan. It is the best to check official web site (Japanese) https://stax.co.jp/support/dealer/ , but among them, my recommendation is

Hi, Good morning / afternoon / evening. I’m ponpokorin ( @ponpokorin_24 ). This is Part 4 of “Easy programming at home”. You can jump to Part 1 to 3 from the links below. Part 1 What is programming in the first place Part 2 Let's use R Part 3 Let's use R 2 I'm going to use R this time too, so if you haven't seen Part 1, look it first. Alright. This time I'm going to write a program that can be used for studying math. Specifically, the goal is to "output a graph of function." You may think that it seems difficult... but if you get used to it, you'll be able to use easily. The flow goes like this. Table of Contents Commands for drawing graphs What you can customize when drawing a graph Try to draw graph using “for” and “if” statements without plot command Afterword Let’s go! Commands for drawing graphs Let's search for a command that graphs the function. I used the site called “R source” ( http://cse.naro.affrc.go.jp/ta

Hi. Good morning / afternoon / evening.  I’m ponpokorin ( @ponpokorin_24 ). Recently, there are various things that are simple and convenient. Of these, I was particularly impressed with this part of Otafuku Sauce bottle (see the photo below). It's a valve that makes it harder to drip. Note : Otafuku sauce is a common okonomiyaki sauce in Japan There are other containers that are difficult to drip, but this was the most moving for me. Good work, Otafuku Sauce! Maybe some people say "I already know that because it was used before other companies' products", but I saw it for the first time with a bottle of Otafuku Sauce. It was a waste to throw it away after using up, so this time I refilled the olive oil. Costco's huge olive oil is difficult to use as it is. BIG SIZE (3 times the general amount in Japan) Here are the steps. I don't think there is a problem, but please do it at your own risk. Refill procedure 1

Hi. Good morning / afternoon / evening. I’m ponpokorin ( @ponpokorin_24 ). Today, “ Nintendo Switch Animal Crossing: New Horizons Edition ” came to my house! So, I want to write about first impression of this edition and review this game lightly. TOC: Flow to reach home First impression of “Nintendo Switch Animal Crossing: New Horizons Edition” Light review about “Animal Crossing: New Horizons” Flow to reach home I won the lottery on March 16, 2020 and was able to make a reservation. Next, I received a confirmation email from the delivery company yesterday. I have specified "Morning delivery". " Nintendo Switch Animal Crossing: New Horizons Edition " arrived at 10:45 am (Tokyo) today! First impression of “Nintendo Switch Animal Crossing: New Horizons Edition” When you open the box, it looks like this. The first layer is the controller and Nintendo Switch. The second layer contained cables, Dock etc. All contents are here. The

Hi. Good morning / afternoon / evening. I’m ponpokorin ( @ponpokorin_24 ). Today, I recommend “Yakiimo(焼き芋, やきいも).” In Japanese, generally, “yaki( 焼き )” means “baked” and “imo( 芋 )” means "potato". But in this case, “imo” means "sweet potato (Satsumaimo)". So, “Yakiimo” is eaten as snack in Japanese people in daily life. Yakiimo is delicious! If you visit Japan, you should try it! What is Yakiimo? Simply speaking, when we bake Satsumaimo, it gets sweet. It is Yakiimo. Please look at these photos.  they  were very tasty! By the way,  why Satsumaimo gets sweet? There is complicated theory. If you are interested in complicated theory, it’s here (You can skip). --- complicated theory start --- Used sweet potato (Satsumaimo) has β-amylase and contains a lot of starch. When we bake Satsumaimo, inner starch is gelatinized, and then β-amylase resolve that starch into maltose. This maltose is very sweet. --- complica

Hi. Good morning / afternoon / evening. I’m ponpokorin ( @ponpokorin_24 ). I think you learned the basic usage of R last time (Part 2). So, this time, let's find out that you can try various things based on the previous knowledge. This time, of course, I will write on the premise that R is installed. If you came to see this article first, please check Part 1 and Part 2 as well. Table of Contents Let’s use packages Let's set the working directory Experiment with data types This time, the volume may be a little lower than the last time. Nevertheless, we recommend taking a break every 25 minutes. Why "every 25 minutes" is because there is my recommended concentration method called Pomodoro Technique. Simply put, set a 25-minute timer, and during that time focus on the task at hand. And when the timer rings, take a break for 5 minutes. Then, concentrate for 25 minutes again… You repeat this process to finish the tasks you are doing. If you're sayi

Hi. Good morning / afternoon / evening. I’m ponpokorin ( @ponpokorin_24 ). In this article I would like to introduce Pomodoro technique first. This is one of the effective tools when you can’t concentrate. The name was given because the inventor used a timer in the form of a tomato (in Italian, tomato is "Pomodoro"). However, the specific method can be found by searching for "Pomodoro technique", so it is omitted here. So, what do I introduce? In Pomodoro Technique, you set the timer for 25 minutes and “concentrate”. In this place, how do you concentrate? It is a today’s topic. Being unable to concentrate on studying seems like a general problem. I think that there are people who listen to background music or favorite songs, prepare rewards, or use some other ways to study. I've tried many these methods, but I couldn't concentrate. That’s why I considered and wrote the following my methods, so if you already concentrate on studying in the ways list

Hi. Good morning / afternoon / evening. I’m ponpokorin ( @ponpokorin_24 ). This article is part2 of NX7 pro(my favorite)'s review. Part1 is  here Today's a table of contents How the impression changes after using more than one month.  (Article's date is close to part1 because I translate Japanese article to English.) Review about filters. Comparison with monitor headphone (ATH-M70x) , using my favorite songs & music. Also, I have two changes. ear tips ; I ended up using ML size of Spiral Dot (JVC). DAP ; I used SONY ZX300 more than 200 hours with balanced NX7 pro. Let's start a review! AliExpress.com Product - NICEHCK NX7 Pro 7 Driver Units HIFI Earphone 4BA+Dual CNT Dynamic+Piezoelectric Ceramics Hybrid Replaceable Filter Facepanel IEM How the impression changes Before comparison with monitor, I write impression lightly with RHA CL750(my favorite too). CL750's sound is more sharp, in other words, NX7 pro's sound is m

Hi. Good morning / afternoon / evening. I’m ponpokorin. In this Part 2, I will write about lesson after installing R . If you haven't installed R, please refer to Part 1 "Let's install R" .  Part 1 is here It's hard to remember programming's technical terms just by looking at them, so let's use them more and more! So, this article's content will be like this. Try to open and close R (additional administrator settings) Let's do four arithmetic operations Let's create vectors Introducing useful commands Console and editor Bonus: Let's customize R There are a lot of contents, but I will write it as easily as possible! Try to open and close R (additional administrator settings) First, if you have successfully installed R, you will see this icon on your desktop. This is official logo. By Hadley Wickham and others at RStudio - https://www.r-project.org/logo/, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=3