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a1


32 total contributions since 2017

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Question


Extract all columns from a table where the column names "start with" a string
How can I extract all columns from a table where the column names "start with" a string? For example, in mytable = array2table...

24일 ago | 1 answer | 0

1

answer

Question


Customizing location of plot on figure
How can I set a plot to be in the center of a figure, while controlling the width? The problem I ham having is that my heatmap i...

24일 ago | 1 answer | 0

1

answer

Answered
Table, delete columns with zero
Got it; it takes two steps. First repalce zeros with NaN, then can clean it up: table2 = standardizeMissing(table1, 0); % the 0...

25일 ago | 0

| accepted

Question


Table, delete columns with zero
I have a table with many rows and columns. How can I delete a column if any row contains zero? (I found a million ways to delete...

25일 ago | 1 answer | 0

1

answer

Question


How to make heatmap y-axis based on column names, not column values
How can I make a heat map based on the values in the column names in a table? For example, if I have this table: myTable = [0 ...

25일 ago | 1 answer | 0

1

answer

Question


Loop for mutliple (but variable) number of plots on multiple pages
I'm trying to make multiple pages of subplots, but the number of pages varies. There will be 12 subplots per page. Note that som...

약 1달 ago | 1 answer | 0

1

answer

Question


Help parsing predictably messy data
I have some really messy data that I am trying to reorganize. The attached *.txt is an example subset. The first screenshot belo...

약 1달 ago | 1 answer | 0

1

answer

Answered
I want to add this cell variable 'condition_col' to existing matrix 'data' if certain conditions are met, following code doesn't work, any help?
See if this helps to get you on the right track: % set up dummy data to work with data = rand(20,1); data = array2table(data)...

약 2달 ago | 0

| accepted

Question


Unable to link x-axis in subplot
I can't seem to get linkaxis to work (code is below, with small datasets attached). I am trying to get the subplots to line up, ...

약 2달 ago | 1 answer | 0

1

answer

Answered
Find four midpoints between each two nodes
This should work: d = [1 1; 2 1; 2 2; 1 2]; givenMidpoints = [1.25 1; 1.5 1;1.75 1; 2 1; 2 1.25; 2 1.5; 2 1.75; 2 2; 1.75 2; 1...

약 2달 ago | 1

| accepted

Answered
Plot best fit line in log-space & get slope
Star Strider basically gave the correct answer, so I have accepted; but I wanted to show the fit in log-log space, so here's my ...

약 2달 ago | 0

Question


Inserting string into specific field in table
I'm trying to insert a string into a specific cell in a table. I've tried a handful of combinations, including curly brackets, c...

약 2달 ago | 0 answers | 0

0

answers

Answered
reading csv file from 10 th line ?
If you want to read only the 10th line: mydata10only = textscan(fid001, '%f %f %f %f', 1 , 'HeaderLines', 10); mydata10only = ...

약 2달 ago | 0

Question


Plot best fit line in log-space & get slope
I am trying to determine the slope of the best-fit line in log space, and plot the best-fit line as a visual check. It needs to ...

약 2달 ago | 2 answers | 0

2

answers

Answered
Resample points that make up a line
I solved this by [for each group_id] getting the distance between each counter_id. Then if the distance was less than the thresh...

약 2달 ago | 0

| accepted

Question


Resample points that make up a line
My dataset consists of lines that are defined by "group_id" and "counter." Each group_id is one line, and the counter is the ord...

약 2달 ago | 1 answer | 0

1

answer

Question


How to repeatedly subdive vector rectangle into equal area?
I have x,y point data that I am trying to analyze in "swaths" or rectangles along the x-axis. I need to take the rectangle and s...

약 2달 ago | 1 answer | 0

1

answer

Answered
regexprep() skip first occurrence
this works but perhaps is not most efficient: [spaces,letters] = regexp(mystring, ' ', 'match', 'split', 'forceCellOutput'); s...

6달 ago | 0

Question


regexprep() skip first occurrence
Is there a way to use regexprep() but skip the first occurrence of a space? mystring = 'this is my string'; desired return: m...

6달 ago | 2 answers | 0

2

answers

Answered
Delete rows in cell that contain part of string
Below works, but perhaps is not the most elegant code. rawdata = textscan(fid, '%s %s' , 'HeaderLines', 7); fclose all; rawda...

6달 ago | 0

Question


Delete rows in cell that contain part of string
I have an Nx2 cell (mixes of strings and doubles) that I'm trying to clean up (rawdata). Specifically, I am trying to delete all...

6달 ago | 2 answers | 0

2

answers

Question


Efficiently import text file with irregular struture
I have data like the sample attached. I'd like to efficiently read it in and ultimately have a table with the following columns:...

6달 ago | 1 answer | 0

1

answer

Question


Append to exisintg file column-wise, different number of rows, don't add NaNs
I'm trying to append a table column-wise (with specific column names, so not a matrix) to an existing TXT. The existing file has...

7달 ago | 0 answers | 0

0

answers

Answered
Change upper limit of HSV colormap
This actually is what I was looking for; the above answers are helpful for manipulating the HSV matrix, but this by-passes that ...

11달 ago | 0

| accepted

Question


Change upper limit of HSV colormap
Is there any way to change the upper limit of the HSV colormap (https://www.mathworks.com/help/matlab/ref/hsv.html), so that the...

11달 ago | 3 answers | 0

3

answers

Question


Scatter Plot, Color on Z not differentiated as expected
I have a dataset of ~150k pts, xyz. Range of z is pretty broad, as illustrated below. I'd like a color map of z, not just shades...

11달 ago | 1 answer | 0

1

answer

Question


Launch Java app & populate entry fields via Matlab
I have a couple programs I run frequently that all written in Java and are bundled as double-clickable JAR files. The programs e...

11달 ago | 1 answer | 0

1

answer

Question


Add number of data points to gscatter() legend
I have a set of data points I am plotting using gscatter(). All the points classified as "Type1" plot as blue circles, "Type2" p...

1년 이상 ago | 1 answer | 1

1

answer

Question


Define bar3() colors with hold on
I am trying to control the colors in a bar3() plot using hold on, but I keep over-riding my previous plot. My code is below....

1년 이상 ago | 1 answer | 0

1

answer

Question


How to use solve() with max()
<</matlabcentral/answers/uploaded_files/106065/Capture.JPG>> Hello, I am trying to solve() the equation pictured for "A" (Ac...

1년 이상 ago | 1 answer | 0

1

answer

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