Published

Impressionism
Sean‘s pick this week is impressionism by David Mills. My pick this week is a fun one that takes your images and transforms...

8 years ago

Answered
How to extract image pixel region by image index value ?
im_region = im(id1:id2,id3:id4);

8 years ago | 0

Answered
x軸の値を表記転換するには？
新しい質問に対して回答します。 1. データ番号を100（正確には101 : MATLAB は１から数えるため）から15刻みで表記。 |plot| コマンドの前にｘ軸となるベクトルを定義すればできます。 % まず 0 ～ 511 まで...

8 years ago | 2

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Solved

Find the largest value in the 3D matrix
Given a 3D matrix A, find the largest value. Example >> A = 1:9; >> A = reshape(A,[3 1 3]); >> islargest(A) a...

8 years ago

Solved

Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

8 years ago

Answered
Manipulating strings defined with the new double quote option
Read up on the documentation on "strings". <https://www.mathworks.com/help/matlab/matlab_prog/create-string-arrays.html Creat...

8 years ago | 7

Answered
値の変動を色で表現するグラフの作成方法
色スケールは |surface| コマンドで無理やり作ってみました。例として既定のカラーマップ（parula）を使用しましたが、実際のスケール（1が赤で-1が青、その間は？）が分かれば簡単に変更できると思います。 % データ定義 x = 0...

8 years ago | 3

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Published

Real-Time Pacer for Simulink
Sean‘s pick this week is Real-Time Pacer for Simulink by Gautam Vallabha. Contents Slow Down! Speed Up! Comments Slow...

8 years ago

Answered
日付のかけ離れた折れ線グラフを同じx軸上にプロットし、離れている区間は省略してプロットしたい。
既存の機能としてはないと思いますのでグラフのカスタマイズをうまく活用するのがよいでしょう。Michio さんの方法も一つですが、他の案として二つ別々の軸を作成して、隣同士に配置するというのはどうでしょう。 % x軸のデータは xData1 xDa...

8 years ago | 4

Answered
フーリエ解析を使用した周波数解析について
正弦波は sin(2*pi*f*t) なので定義は以下のようになるのではないでしょうか。 sinwave1 = sin(2*pi*0.5*model_timestep1); sinwave2 = sin(2*pi*1*model_times...

8 years ago | 2

| accepted

Answered
waveletを使用した低周波の解析について
Wavelet についてそれほど詳しくはないのですが、ざっとコードを拝見してて気づいたのですが、 |fa| の定義が fa = 0.1:1; だと 0.1 Hz しか定義されません。 fa = 0.1:0.1:1; にすると...

8 years ago | 2

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Published

Extract text from PDF documents
Jiro‘s pick this week is “Read text from a PDF document” by Derek Wood.Ah, this is a nice entry. I was hoping for...

8 years ago

Answered
MATLAB(あるいはSimulink)とProcessingの間でのリアルタイムのデータの渡し方について
同じPC内の二つのプロセス通信だと COM や TCP/IP などが考えられます。また、MATLAB には様々な言語から呼べるインターフェイスがありますので、もしかしたら Processing が Java ベースなのでしたら Java 用 AP Iが使え...

8 years ago | 3

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Published

What are the functional inputs and outputs of my Simulink model?
Greg’s pick this week is Signature Tool by McSCert. Simulink enables you to layout rather large and diverse diagrams. For...

8 years ago

Published

Fidget Spinner
Sean‘s pick this week is Fidget Spinner (Simscape Multibody) by Pavel Roslovets. It wasn’t even a couple months ago that...

8 years ago

Answered
ある2値画像に白い線を引いて保存したいのですができません．
|Figure| の <https://jp.mathworks.com/help/matlab/ref/figure-properties.html#property_d0e267493 |InvertHardCopy|> プロパティを変更すればうまく行...

8 years ago | 1

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Published

Classifying old Japanese characters using CNN
Jiro‘s pick this week is CNN for Old Japanese Character Classification by one of my colleagues Akira Agata.Nowadays, I...

8 years ago

Published

Source Control Information Block
Richard is Consulting Engineer at MathWorks focused on the Embedded Coder product for code generation, primarily in the...

8 years ago

Published

Catstruct
Sean‘s pick this week is catstruct by Jos (10584). Have you ever had two structures and wanted to combine them into...

8 years ago

Published

Launch and manage external processes from MATLAB
Jiro‘s pick this week is Process Manager by Brian Lau.With MATLAB being able to interface with other languages and...

8 years ago

Published

Deep Learning Tutorial Series
Our guest post this week is written by Johanna: her pick of the week is a new Deep Learning Tutorial Series. This post is...

8 years ago

Published

Cell2Underlying
Sean‘s pick this week is cell2underlying by MathWorks Parallel Computing Toolbox Team. Contents Datastores Tall...

8 years ago

Published

Subplot Position Calculator
Jiro‘s pick this week is Subplot Position Calculator by Christopher Hummersone.subplot is a nice way to place a grid of...

8 years ago

Published

Detecting Circles, Revisited
Brett‘s Pick this week is circleFinder, an app for, well, finding circles in images. Many of you know already that I am a...

8 years ago

Published

Navigating Made Easy
Jiro‘s pick this week is easyBrowser by Michele Scalseggi.When I work on a large project, I usually have files scattered...

9 years ago

Published

The Speech Transmission Index (STI)
NoteThe file submission referenced in this post is no longer available on File Exchange. Sean‘s pick this week is The...

9 years ago

Published

parseTime
Will‘s pick this week is…

9 years ago

Answered
parforによる高速化
実際に並列化しようとしているコードはもともとどの位の時間がかかる処理でしょうか。添付されたファイルはサンプルコードだと思いますが、1秒程度の処理を並列化してもほぼ高速化は得られないでしょう。どの位で効果が得られるかはコード、データ、PCスペックなど...

9 years ago | 3

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Published

Guide To Object
Sean‘s pick this week is Guide To Object by Neil Hopcroft. Contents GUIDE App Designer Comments GUIDE Have you ever used...

9 years ago

Published

R2017a: heatmap
Jiro‘s pick this week is the new heatmap function introduced in R2017a.Last month, a new release of MATLAB (R2017a) came...

9 years ago