# newbie9

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**Content Feed**

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...

11 mois ago | 2 answers | 0

### 2

answersQuestion

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...

presque 2 ans ago | 1 answer | 0

### 1

answerQuestion

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...

plus de 2 ans ago | 0 answers | 0

### 0

answersHow 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={...

plus de 2 ans ago | 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 ...

plus de 2 ans ago | 1 answer | 0

### 1

answerQuestion

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 2 ans ago | 1 answer | 0

### 1

answerQuestion

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 2 ans ago | 1 answer | 0

### 1

answerQuestion

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 2 ans ago | 1 answer | 0

### 1

answerQuestion

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,...

presque 3 ans ago | 1 answer | 0

### 1

answerQuestion

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?

presque 3 ans ago | 1 answer | 0

### 1

answerQuestion

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...

presque 3 ans ago | 2 answers | 0

### 2

answersQuestion

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...

presque 3 ans ago | 1 answer | 0

### 1

answerTable, 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...

presque 3 ans 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...

presque 3 ans ago | 2 answers | 0

### 2

answersQuestion

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 ...

presque 3 ans ago | 1 answer | 0

### 1

answerQuestion

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...

presque 3 ans ago | 1 answer | 0

### 1

answerQuestion

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...

presque 3 ans ago | 1 answer | 0

### 1

answerI 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)...

environ 3 ans 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, ...

environ 3 ans ago | 1 answer | 0

### 1

answerFind 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...

environ 3 ans ago | 1

| accepted

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 ...

environ 3 ans ago | 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...

environ 3 ans ago | 1 answer | 1

### 1

answerreading 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 = ...

environ 3 ans 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 ...

environ 3 ans ago | 2 answers | 0

### 2

answersResample 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...

environ 3 ans 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...

environ 3 ans ago | 1 answer | 0

### 1

answerQuestion

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...

environ 3 ans ago | 1 answer | 0

### 1

answerregexprep() skip first occurrence

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

plus de 3 ans 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...

plus de 3 ans ago | 2 answers | 0

### 2

answersDelete 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...

plus de 3 ans ago | 0