# Norbert Marwan

### Potsdam Institute for Climate Impact Research

Senior Researcher in the Potsdam Institute for Climate Impact Research (PIK), Rearch Domain Transdisciplinary Concepts and Methods, Germany Professional Interests: nonlinear time series analysis, recurrence based analysis, palaeoclimate

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Sorted highest to lowest?

Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

6 years ago

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Most nonzero elements in row

Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...

6 years ago

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Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

6 years ago

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makeinstall

Create a single install file for your toolbox distribution.

8 years ago | 2 downloads |

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

9 years ago

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

9 years ago

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

9 years ago

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Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

9 years ago

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

9 years ago

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Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

9 years ago

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Wrap a vector, but insert NaN's at the wrap-positions.

When you plot a line that wraps, and do not want the sawtooth shape to show up in the plot, you can either draw all separate lin...

9 years ago

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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:...

9 years ago

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Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

9 years ago

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Weighted average

Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

9 years ago

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mgui

MGUI bunchs your often used functions in order to simplify your work with data analysis in MATLAB.

13 years ago | 1 download |

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Windowed Cross Correlation (corrgram)

Computes windowed cross correlation

14 years ago | 8 downloads |

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Windowed mutual information (migram)

Computes a windowed mutual information

15 years ago | 3 downloads |

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Blue-orange Colormap (esa colormap)

A colormap with colors orange-white-light blue.

16 years ago | 3 downloads |

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Makeinstall Technology

The technology behind the Makeinstall tool.

17 years ago | 3 downloads |