Community Profile

# Aslak Grinsted

### Centre for Ice and Climate, NBI, Copenhagen University

116 total contributions since 2003

View details...

Contributions in
View by

Solved

Number of Even Elements in Fibonacci Sequence
Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

ungefär 2 år ago

Solved

The 5th Root
Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

ungefär 2 år ago

Submitted

timed waitbar
A progress bar in a single line of code with ETA

Submitted

Reads a sub region of a geotiff or geojp2 image.

Solved

Let's see how peculiar we can get
The task is to multiply two numbers. But do it in the most peculiar possible way.

mer än 4 år ago

Submitted

Ensemble MCMC sampler
An affine invariant ensemble Markov Chain Monte Carlo sampler

Submitted

Markov Chain Monte Carlo sampling of posterior distribution
MCMC sampling of using a cascaded metropolis

Submitted

cachedcall
Cache the results of slow function calls

Submitted

quantreg(x,y,tau,order,Nboot)
Quantile regression with bootstrapping confidence intervals

Submitted

datetickzoom for R2014b onwards

Submitted

hslcolormap
Generate pleasing HSL colormaps easily.

Submitted

Easy interface for reading netcdf files.

Submitted

depeval - check for dependencies

Submitted

Tidal fitting toolbox
fit tidal components to an observed series of sea level and use them for prediction

Submitted

ImGRAFT
An Image Georectification and Feature Tracking toolbox

Submitted

Use shorthand for text layout
Allows you to specify alignment options using single character flags.

Solved

Spot the outlier
All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...

mer än 5 år ago

Solved

Make a run-length companion vector
Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...

mer än 5 år ago

Solved

How many trades represent all the profit?
Given a list of results from trades made: [1 3 -4 2 -1 2 3] We can add them up to see this series of trades made a profit ...

mer än 5 år ago

Solved

Flag largest magnitude swings as they occur
You have a phenomenon that produces strictly positive or negative results. delta = [1 -3 4 2 -1 6 -2 -7]; Marching thr...

mer än 5 år ago

Solved

Function Iterator
Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

mer än 5 år ago

Submitted

Cross wavelet and wavelet coherence
A cross wavelet and wavelet coherence toolbox

what are the similarity measures between two signals
There are really many different measures and they are good at different things (e.g. phase correlation). The two measures y...

mer än 5 år ago | 0

How can I find the Difference between the Min and Max of all matching cells over different matrices?
I would put the 12 matrices in a 33x45x12 matrix. Then you can simply call max(x,3)-min(x,3) the '3' refers to take th...

mer än 5 år ago | 0

Solved

Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

mer än 5 år ago

Solved

Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

mer än 5 år ago

Submitted

A simple and flexible text data file parser

Solved

<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

mer än 5 år ago

Solved

Make a Palindrome Number
Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

mer än 5 år ago

Solved

Summing Digits within Text
Given a string with text and digits, add all the numbers together. Examples: Input str = '4 and 20 blackbirds baked in a...

mer än 5 år ago