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newbie9


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Question


How to get optimal linear scaling factor for a set of vectors
I am trying to determine the optimal linear scaling factor for a set of vectors, such that the mean of the scaled set is close t...

plus de 2 ans il y a | 2 réponses | 0

2

réponses

Question


interp2() 'monotonically increasing' error
I have many lines that represent a "z" value and want to interpolate at a specific value between them, at a specific x-axis loc...

plus de 3 ans il y a | 1 réponse | 0

1

réponse

Question


Join 3 tables based on 2 key fields, trouble using outerjoin()
How can I combine 3 tables into 1 table, using two "key" fields? I have tried various combinations of outerjoin() without any lu...

presque 4 ans il y a | 1 réponse | 0

0

réponse

A répondu
How to save uitable() to PNG
I asked on StackOverflow and got an answer that worked: f = figure; uit = uitable(f, 'Data', table2cell(t)); uit.ColumnName={...

presque 4 ans il y a | 2

Question


How to save uitable() to PNG
I am trying to use uitable() to convert my Table to a PNG, but I'm having trouble saving it. Using R2018a, no fancy add-ons ...

presque 4 ans il y a | 2 réponses | 0

2

réponses

Question


Scatter plot legend marker size is huge
The legend icons in my scatter plot are huge in the saved PDF (they look fine in the Matalb figure pop-up window). I tried some ...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

Question


Subplots squished to top of page, manually setting position not working
I am trying to create a set of 12 subplots on a tabloid landscape layout to print to PDF. The plots are all squished to the top...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

Question


Existing table, populate a column with string (receiving errors)
I have a table, and I want to populate every row in a specific column with the same string. I keep getting errors. Using Matlab ...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

Question


Duplicate x,y in table; get min/max of variables to new table
I have a large dataset, small subset attached. There are duplicate x,y values. I need a cleaned table with "var1_max, var1_min,...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

Question


Table, how to replace all values less than X with Y in specific column
Working with a Matlab table, not matrix, how can I replace all values less than X with Y in specific column?

plus de 4 ans il y a | 1 réponse | 0

1

réponse

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...

plus de 4 ans il y a | 2 réponses | 0

2

réponses

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...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

A répondu
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...

plus de 4 ans il y a | 1

| A accepté

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...

plus de 4 ans il y a | 2 réponses | 0

2

réponses

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 ...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

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...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

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...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

A répondu
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)...

plus de 4 ans il y a | 0

| A accepté

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, ...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

A répondu
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...

plus de 4 ans il y a | 1

| A accepté

A répondu
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 ...

plus de 4 ans il y a | 1

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...

plus de 4 ans il y a | 1 réponse | 1

1

réponse

A répondu
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 = ...

plus de 4 ans il y a | 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 ...

plus de 4 ans il y a | 2 réponses | 0

2

réponses

A répondu
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...

plus de 4 ans il y a | 0

| A accepté

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...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

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...

plus de 4 ans il y a | 1 réponse | 0

1

réponse

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

environ 5 ans il y a | 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...

environ 5 ans il y a | 2 réponses | 0

2

réponses

A répondu
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...

environ 5 ans il y a | 0

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