# Michelle De Luna

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**Content Feed**

Question

Change Name of String in Cell Array if Repeated More Than Once...

Good afternoon! I'm currently working with hundreds of files that each represent an individual day. Every time an event occurs...

circa un mese ago | 1 answer | 0

### 1

answerQuestion

Select Numerous Files from Folder Based on Values in Matrix

Hi all! I have one big folder with thousands of files containing data for each day of each year from 1980 to 2000. The name of...

circa 2 mesi ago | 1 answer | 0

### 1

answerQuestion

Plotting Wind Vectors at Various Atmospheric Pressure Levels...

Good morning! I'm trying to plot wind vectors using MATLAB's quiver function. While I can successfully plot a 2-d wind vector ...

6 mesi ago | 1 answer | 0

### 1

answerQuestion

Read Data and Store Variables for Hundreds of Files...

Hi all, I have a folder with hundreds of files. I would like to read each file individually and store the results so that, in t...

6 mesi ago | 1 answer | 0

### 1

answerChange Variable Value at each Iteration Based on Value in Array

After a couple of days, I got the (as expected, pretty easy) solution: if the size of my array is the same length of the files i...

8 mesi ago | 0

| accepted

Question

Change Variable Value at each Iteration Based on Value in Array

Hi all! I'm currently reading through ten .nc files. I am interested in looking at a particular variable contained within each...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Save Multiple Matrices from For Loop

Good afternoon! I'm currently working on reading through various levels of a group of .nc files. Every time I read through the...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Extracting Data from Over 600 .nc Files...

Hi all! Here's a tough one I'm hoping to receive some guidance on: I'm trying to average a specific variable over six hundred ...

8 mesi ago | 1 answer | 0

### 1

answerQuestion

Creating a 3-D Plot/Contour Map from Matrix...

Good evening! I have multiple 21 x 21 matrices that represent temperature at 21 different atmospheric pressure levels and 21 d...

8 mesi ago | 1 answer | 0

### 1

answerReplace Only Certain Values within a Matrix Based on Indices from Another

Got it! Thanks for the help! :) x y ind = find(x~=0) index=setdiff(1:numel(y),ind); y(index)=0 y

10 mesi ago | 0

| accepted

Question

Replace Only Certain Values within a Matrix Based on Indices from Another

Hi all! I have a 200 X 500 matrix. Within that matrix, only a handful of elements have actual numerical values. I have identif...

10 mesi ago | 2 answers | 0

### 2

answersQuestion

Identify Individual Shape from Matrix Representing Multiple Shapes

Hi all, I have a matrix which represents multiple shapes. (Picture an image with a black background and several white circles ...

10 mesi ago | 2 answers | 0

### 2

answersHelp with Matrices and Index Position

Thanks to all! I just used the "find" function to find all non-NaN values and used the indices related to these values to solve ...

10 mesi ago | 0

| accepted

Question

Help with Matrices and Index Position

Hi all, I have multiple matrices of the same size (500 x 5,000). I am focusing on the first of the matrices, which has some nu...

10 mesi ago | 1 answer | 0

### 1

answerQuestion

Replace Values Larger than Threshold with New Value, But Keep Smaller Values

Hi all, I have a 600 x 2 matrix, and I would like to check which values within the first column exceed a threshold. For exampl...

10 mesi ago | 1 answer | 0

### 1

answerQuestion

Select Specific NC Files in Folder Using Date Included in Filename

Good evening! I hope this message finds everyone healthy and well. I'm currently working with a series of .nc files which repr...

11 mesi ago | 1 answer | 0

### 1

answerQuestion

Second X-Axis on Bottom of Contour Plot?

Hi everyone! I hope you are all well and safe. Just a quick question: I have a contour plot and I'm trying to add a second x-a...

circa un anno ago | 1 answer | 0

### 1

answerQuestion

Outline of shape in matrix using contour?

Hi all! I have a matrix with various shapes. The matrix looks something like this (picture included below) when I use the imsh...

circa un anno ago | 1 answer | 0

### 1

answer2-D Plot with Latitude, Pressure Level, and other Variables

Thank you to all for your input! The issue was addressed using the contour function and focusing on one contour line of interest...

circa un anno ago | 0

| accepted

Question

2-D Plot with Latitude, Pressure Level, and other Variables

Hi everyone! I have been tasked with plotting specific humidity on a 2-D plot that uses latitude as the x-axis and atmospheric...

circa un anno ago | 1 answer | 0

### 1

answerQuestion

Combining/Merging Output for Multiple NetCDF Files

Good afternoon! I have a series of 31 netCDF files (.nc4), each representing a day of the month. Variables for each of the files...

oltre un anno ago | 3 answers | 0

### 3

answersQuestion

4 x 4 Mask to Identify Regions on Map with Highest Value

Good afternoon everyone! I have a 360 x 576 matrix that represents a map of the world (latitude and longitude, respectively). ...

oltre un anno ago | 2 answers | 0

### 2

answersQuestion

Replacing Values in Matrix with NaN's based on Row and Column

Hi everyone! I hope all of you are well. I'm currently working on replacing specific element values with NaN's within a matrix...

oltre un anno ago | 2 answers | 0

### 2

answersQuestion

Reduce Matrix by Adding Every Nth Rows and Nth Columns

Good morning everyone! I was hoping for suggestions regarding a matrix reduction problem. I have a matrix that is 8000 x 4000....

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

Create New Array from Existing Array using For Loop and If Statement

Good evening everyone! I have an array named 'longitude' that has hundreds of thousands of longitude values ranging from 30 to...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

Selecting Elements of Matrix Given Index Value...

Hi all! I have an array with a list of indices that I am interested in extracting from a matrix. For example, the array is [96...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

Comparing Two Matrices and Returning Differences...

Hi friends! I hope this post finds you all in good health! I'm reaching out because I had a question regarding the comparison ...

oltre un anno ago | 1 answer | 0

### 1

answerQuestion

Select Specific Values in Matrix Based on Index Values Listed in Array...

Good afternoon! I had a question regarding filtering/selecting specific values within a matrix based on the values listed in a...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

For Loop for Non-Consecutive Values in an Array...

Hi everyone! I had a question regarding for loops when your "i" values are not consecutive. I have a large matrix with thousan...

circa 2 anni ago | 1 answer | 0

### 1

answerQuestion

How to Export Contour Plot as Shape File if Output is of Data Type 'Double'?

Good morning! I'm trying to export a contour plot as a shapefile. However, there seems to be a problem with the shapewrite fun...

circa 2 anni ago | 1 answer | 0