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# Emma Kuttler

Last seen: 4 maanden ago Active since 2019

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Question

How to reshape matrix by column number?
Hi, I have a 163 x 13 matrix of numerical values that I'd like to turn into a longer matrix. I'd like to keep the first two colu...

4 maanden ago | 2 answers | 0

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Question

Output cell values and column number for matrix with specific values
Hi, I have a 105 x 13 matrix where the first two columns represent an identifier and columns 3:13 have values either 0 or 1. W...

4 maanden ago | 2 answers | 0

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Question

Replace values with zero and zero with values in matrix simultaneously
Hi, I have a 1363x12 matrix called SwRailNodeDemand. The first column is consecutive integers, and the other eleven columns eith...

4 maanden ago | 1 answer | 0

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Question

How to multiply some columns in matrix by scalar
I have a matrix with 12 columns. I want to multiply all columns except the first two by 100 and leave the first two the same, th...

5 maanden ago | 1 answer | 0

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Question

How to select rows of matrix based on other matrix column?
Hi, I have a single column matrix called "nodes" and a larger matrix with many columns called "arcs". If values from "nodes" app...

5 maanden ago | 1 answer | 0

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Question

How to check for reversed pairings in columns of a matrix?
I have a matrix representing arcs in a network, where the first two columns represent the the "to" and "from" nodes and the othe...

5 maanden ago | 1 answer | 0

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Question

Sum matrix with repeating indices
Hi! I have one matrix, A, that has one column of identifier values (with repeats and some missing numbers) and a column of value...

5 maanden ago | 2 answers | 0

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Question

Count unique values in a double
I have a single column double with a lot of repeated values. I need to find the number of unique elements of that list (don't ca...

6 maanden ago | 3 answers | 0

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Question

How to remove rows with zeros in selected columns?
I have a matrix with 1363 rows and 21 columns. The first column is an identifier (1-21). I need to delete all rows that contain ...

6 maanden ago | 1 answer | 0

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Question

How to extract specific rows from matrix by matching with other matrix?
I have two matrices. One is a two-column matrix of (i,j) pairs containing 1440 rows. The other matrix is 2878 rows, with the fir...

6 maanden ago | 1 answer | 0

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Question

Probability visualization with color scale
Hi, I have a 296x296 matrix. Each cell in the matrix represents a probability of occurence, [0,1]. I want to create a grid or he...

meer dan 2 jaar ago | 1 answer | 0

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Question

Count number of times value appears in column
I have a 1000x296 matrix called FinalRanking. The possible values in each cell are between 1 and 296, integers. I want to coun...

meer dan 2 jaar ago | 3 answers | 0

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Question

Calculate probability of number appearing in a column
I have a 1000x296 matrix called Values. The rows represent trials of a simulation, and the rows represent the rank (1-296) of a ...

meer dan 2 jaar ago | 2 answers | 0

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Question

Return vectors from for loop as columns in matrix
Hi, I have a 296x6 matrix called normalimpact, and i want to assign random weights to each column of the matrix, do some scoring...

meer dan 2 jaar ago | 1 answer | 0

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Question

Return rank value of a row
I have a 296x1 column vector called Sscore. Each row represents the score for a node, ie row 1 represents the score for node 1. ...

meer dan 2 jaar ago | 2 answers | 0

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Question

Sum across columns for each row
I have a 296x6 matrix called impactScore, and the maximum value (max1, max2 . . . max6) from each column(call them col1,col2 . ....

meer dan 2 jaar ago | 1 answer | 0