All Questions
46 questions
1
vote
0
answers
30
views
Evaluating an expression with shunting yard algorithm
I'm learning Scala and wrote a simple infix expression evaluator using the shunting yard algorithm. As opposed to the wikipedia example, this implementation evaluates the expression in place instead ...
- 8,590
1
vote
0
answers
40
views
Relational join of two datasets
Front Matter
I'm learning Scala and have not gotten used to functional programming and the language. I'm hoping a review of my naively implemented code can help me bridge my object-oriented ways to ...
- 111
1
vote
2
answers
81
views
Extracting items from comma/semicolon-delimited strings, discarding parts after a hyphen
New Scala dev here. Is there a more idiomatic or efficient way to accomplish this in Scala?
Given a list of the following strings, I need to obtain the unique 'main parts' once any parts including ...
- 185
2
votes
2
answers
801
views
Scala app to transpose columns into rows
This is the first application or really any Scala I have every written. So far it functions as I would hope it would. I just found this community and would love some peer review of possible ...
-1
votes
1
answer
57
views
Perform KS-test on Random Number Generator [closed]
I've just started practicing Functional Programming in Scala in some days. This is the code I used to perform KS-test on a random number generator.
...
- 151
4
votes
1
answer
204
views
Find an ideal speed to cross all traffic lights when they are green
As a second exercise with Scala I tried to solve another puzzle.
In this puzzle, we have to find the highest speed that allows a driver to cross all the traffic lights when they are green, without ...
- 786
2
votes
1
answer
162
views
Finding the nearest defibrillator exercise from CodingGames
For my first attempt at Scala I decided to solve a simple exercise on codingame.com.
Based on a string input containing the user location, the defibrillators count and a list of defibrillators ...
- 786
2
votes
1
answer
4k
views
Removing stop words from a Spark Dataframe
I am trying to apply a function to two Spark Dataframes (in Zeppelin):
...
- 131
5
votes
1
answer
264
views
Scala Docx generator from CSV input, using the docx4j library and Scala Swing
I am working on an application which takes as input a CSV file containing a list of attributes and a .docx template containing variable names equal to the columns ...
- 53
4
votes
2
answers
115
views
Find the minimum number of operations (concat, add and subtract) for the numbers 1-9 to equal 100
I am beginning to learn Scala and functional programming, and I came across this puzzle.
This looked like good practice and I have a solution but just want some hints in terms of functional approach ...
- 41
3
votes
1
answer
1k
views
Scala traits for arithmetic expressions
I am learning Scala and want to know, what is preferred style of writing a function for a trait.
First:
...
- 131
3
votes
1
answer
176
views
MarsRover in Scala
This is my first attempt at Scala programming. I tried to be functional but I'm not sure if I have achieved that.
DataTypes.scala
...
- 387
3
votes
4
answers
211
views
Displaying nested arithmetic expressions as a string using Scala pattern matching
I am learning the concepts of pattern matching in Scala. Following is an exercise for the same. The task is to define a show function that outputs an expression as ...
- 141
14
votes
1
answer
448
views
All RGB colors in one image
This is a program to solve: Images with all Colors from Code Golf:
Make images where each pixel is a unique color (no color is used twice
and no color is missing).
Create the image purely ...
- 181
1
vote
1
answer
276
views
Triangle numbers finder in Scala
I'm new to Scala and learn it by solving some Project Euler problems. Here is the solution to problem 42 from Project Euler.
The task is to read words from file, then sum ordinal numbers of each ...
- 367