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buhmatlab


Last seen: 3 meses ago
11 total contributions since 2019

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Question


Sum up values in a certain range with logical indexing (better performance)
Hi, Since my script runs very slowly, I try to optimize the code and wonder if anybody is able help? The (old and slow) cod...

4 meses ago | 0 answers | 0

0

answers

Question


Cumulative sum of last n entries of column vectors
Hi, I've got the following 2 column vectors: "Name" (300x1 Categorical) and "Amount" (300x1 Double). I wanna calculate the c...

4 meses ago | 1 answer | 1

1

answer

Question


How to find streaks in a categorical vector?
Hi, is there a way to identify streaks in a categorical vector? Considering number vectors, I've found out that it might be use...

5 meses ago | 2 answers | 0

2

answers

Answered
Calculate with same amount on every date and adjust when date changes (for-loop)
if i>1 & Date(i)>Date(i-1) Amount(i) = sum(Result(find(Date==Date(i-1)))) + Amount(i-1); elseif i>1 & Date(i)...

5 meses ago | 0

| accepted

Question


Calculate with same amount on every date and adjust when date changes (for-loop)
Hi, I’ve got three column vectors (300x1) Date, VariousA, Amount (Amout has only one Starting value in row 1) and I wanna per...

5 meses ago | 2 answers | 0

2

answers

Question


How to "keep" a variable for some rows within a for loop
Hi, My problem is the following: I've created a for-loop in which I calculate SOMETHING(i) for each row (see code below). Bu...

5 meses ago | 1 answer | 0

1

answer

Question


Find maximum of all rows without a for-loop?
Hi, I am relatively new to Matlab and only used to work with for-loops which I've already used succesfully to find the maximum ...

5 meses ago | 1 answer | 0

1

answer

Question


Show values depending on values in another column above the actual row
Hi, I'm struggling with the following problem: I’ve got a table containing a few column vectors: Day, Name, Result My goal ...

6 meses ago | 1 answer | 0

1

answer

Question


Sum up values depending on entries in another column
Hi, With the friendly helpf of this forum I was able to count specific values but now there is a last hurdle: I've got a col...

6 meses ago | 1 answer | 0

1

answer

Question


Count the number of occurrences in a string vector
Hi, I'm relatively new to Matlab because I only used Excel so far. For my project I used the COUNTIFS function and I'm wonder...

6 meses ago | 1 answer | 0

1

answer

Question


Create a cumulative sum under certain conditions
Hello together, I am pretty new to MATLAB since I has been forced to switch. Accordingly I have not many skills that would help ...

10 meses ago | 2 answers | 0

2

answers