Jan Studnicka

Humusoft s.r.o.

Last seen: Today | Active since 2015

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I'm an Application Engineer for Humusoft.

Professional Interests: Machine Learning, Data Analytics, Optimization, Parallel Computing

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Submitted

Convert Variable Live Task
Interactively convert variable to a different data type in Live Script.

29 días ago | 5 downloads |

Solved

Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...

3 meses ago

Solved

Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

4 meses ago

Solved

Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.ⅇ^(-λt)*cos(2πft)| where |A|, |λ|, and |f| ...

4 meses ago

Solved

Solve a System of Linear Equations
Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

4 meses ago

Solved

Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....

4 meses ago

Solved

Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...

4 meses ago

Solved

Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

4 meses ago

Solved

Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

4 meses ago

Solved

Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

4 meses ago

Submitted

Map Area Measurement App
Select points of geographical polygon from map to measure its area and perimeter.

4 meses ago | 1 download |

Answered
Strange values of map axes limits (axesm).
Hello, The default setting for map axes is that the map frame is not visible. You need to toggle the visibility of the map fram...

7 meses ago | 0

Submitted

Polygon Drawing App
GUI for polyshape. Draw polygon and measure its area and perimeter.

8 meses ago | 4 downloads |

Solved

The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

10 meses ago

Submitted

Import Explorer for tables
GUI for readtable and datastore. Select / sort table variables and their data types. Read from multiple tabular text or Excel fi...

12 meses ago | 7 downloads |

Answered
Custom geobasemaps not show in compiled application.
As described here: https://www.mathworks.com/help/map/ref/addcustombasemap.html?searchHighlight=addCustomBasemap&s_tid=srchtitl...

alrededor de 1 año ago | 1

| accepted

Answered
Geoaxes zoom not working after adding ButtonDownFcn.
As mentioned here in the documentation: "Sometimes MATLAB® automatically disables the built-in interactions. For example, they ...

alrededor de 1 año ago | 1

Submitted

Pravděpodobnostní analýza ThingSpeak dat - hody kostkou
Pravděpodobnostní analýza průběžně zaznamenávaných výstupů z hodů jednou kostkou.

casi 2 años ago | 1 download |

Answered
Is MATLAB App Designer in place of Matlab GUI in MATLAB 2020a?
Yes. You can find more information here: https://www.mathworks.com/products/matlab/app-designer/comparing-guide-and-app-de...

alrededor de 2 años ago | 1

Submitted

Locale-sensitive sort
Function sort_locale performs locale-sensitive sort in MATLAB.

alrededor de 2 años ago | 2 downloads |

Submitted

Vykreslení vejce
Live Script s postupem, jak vykreslit vejce ve 2D a 3D.

alrededor de 2 años ago | 1 download |

Solved

Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

más de 2 años ago

Answered
Use find to filter for results specified by user
Hi, strcmp is slower then == and you can use == with strings. You can also save space and get better performance by using categ...

más de 2 años ago | 0

| accepted

Answered
Hi, how can i proceed with this question, everytime i plot it, it doesn't show me my line. Can u guys help me
You are missing . before /. See: https://www.mathworks.com/help/matlab/ref/rdivide.html https://www.mathworks.com/help/matlab/...

más de 2 años ago | 0

| accepted

Answered
Data Tip addition not working
close all; clc figPosition = [0 0 1 1]; data = readtable('FertilitySoloCountries.xlsx', 'PreserveVariableNames', true); year...

más de 2 años ago | 0

| accepted

Answered
Gtk-Message: 16:17:51.771: Failed to load module "canberra-gtk-module"
See bug reports: https://www.mathworks.com/support/bugreports/details/1995075 "On some Linux distributions, a message appears ...

más de 2 años ago | 2

Answered
Gtk-Message: 10:32:31.466: Failed to load module "canberra-gtk-module"
See bug reports: https://www.mathworks.com/support/bugreports/details/1995075 "On some Linux distributions, a message appe...

más de 2 años ago | 4

Answered
How can I convert csv files to matlab whilst also looping through folders?
Hi, I would try using datastore: https://www.mathworks.com/help/matlab/datastore.html Hope it helps.

más de 3 años ago | 0

Answered
Exception in thread "Thread-5": java.lang.NullPointerException after exiting [Matlab 2018b]
It looks like the known bug. You can find workaround here: https://www.mathworks.com/support/bugreports/1765886

más de 3 años ago | 4

| accepted

Answered
Formula for calculating marginal risk contributions (video MATLAB for Advanced Portfolio Construction and Stock Selection Models)
Hi, correct formula is in slide number 7.

casi 5 años ago | 0

| accepted