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How to plot a polynomial function, having the ordinate coordinates symmetrical about the abscissa (horizontal line)
Well, it's not too hard to get reasonably close...you don't have enough points on yours for the smooth line...the following code...

6年以上前 | 0

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find minimum value of a two-variable equation on an interval.
"...is there anyway I can delet[e] the dot but the equation can still work?" Ah! Indeed I didn't follow along the nub of the q...

6年以上前 | 0

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Hiding Plot Elements makes those elements appearing in the legend and the legend itself a much lighter shade than it should be. How to fix this?
OK, wasn't too hard to take yours and make an example... figure(1) colormap jet hAx(1) = subplot(5,5,[1,2,6,7]); yyaxis le...

6年以上前 | 0

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Write multiple vectors into .dat file
Simplest, presuming they're the same length would be to write as 2D array. I'd write as column instead of row.. writematrix([x...

6年以上前 | 1

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Extract numbers from lines in a txt file. Onset times from experimental data.
Carrying on from the above that just diddled with the file format to be able to get the data; the following seems to work: file...

6年以上前 | 0

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log-log plot explained
You have created such...what's the problem? Probably the issue is that your data don't cover a sufficient range in either x or ...

6年以上前 | 0

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Extract numbers from lines in a txt file. Onset times from experimental data.
The problem is the file contains double-byte characters and ML isn't interpreting them ... >> txt=importdata('Imagine_simple-1-...

6年以上前 | 0

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Create a logistical variable based on time range
readtable is a convenient byway on the way to a timetable which will undoubtedly be your friend... tt=readtable('Forum_aq_data....

6年以上前 | 0

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Plotting an array of vectors
Your data are nothing at all like that of the other figures; hence it's not surprising they don't plot similar-looking graphs. ...

6年以上前 | 0

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Sum across columns with shift
May be some other more clever indexing, but the "deadahead" thing that comes to mind if I understand the desire >> a=1:18;a=res...

6年以上前 | 1

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Scatter Plot with different "markers" and "data labels"
Adam posted first but will add slightly different way to get to same place (sans some of the finishing niceties...) Why scatter...

6年以上前 | 1

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How to reshape an array in a specific manner
>> reshape(a,3,[]).' ans = 1 2 3 1 2 3 1 2 3 1 2 3 >>

6年以上前 | 0

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How can I get information that a 'uisave' command was aborted?
No can do. Less than primo "Quality of Implemenation" that TMW didn't have an optional return value from uisave >> fn=uisave('...

6年以上前 | 0

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How to sort a vector according to another vector?
R=['a':'d'].'; % So can identify elements of R % the engine [~,ix]=sort(ranks); % the result... >> R(ix) ans = 4×1 char...

6年以上前 | 0

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Question on why tilde cannot return the opposite statement result
Q4_ans_test2 = mean( adultdata.hours_per_week(adultdata.age>30 & ~(adultdata.age>50))); Without the parentheses, the ~operator ...

6年以上前 | 1

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Can I use histfit and add a specified type of Bin in it? I want to take my data and add bins with the array [0:2:100], however it won't let me. More specifically I am trying to obtain a bell curve over my histogram and don't know how to go about this
What's wrong w/ histfit(randn(1000,1)) which generated

6年以上前 | 0

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Fractions as array indices in for loop
Short answer? "Because!" TMW hath so decreed. I'm sure it's mostly performance related as well as ease of code development an...

6年以上前 | 0

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row from matrix by argument
m=randi(200,4) % sample data m = 125 95 46 63 118 47 35 185 42 169 46 87 ...

6年以上前 | 0

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Counts the number of times the signal crosses zero
Use zcd = dsp.ZeroCrossingDetector; to create the object per the documentation. Then you pass that object the data... numZero...

6年以上前 | 0

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Looping through different sheets/sheet names in each loop to access data
You've embedded the text string '({SheetNames}.(iSheetData}' in the readtable call instead of using the variable Sheetnames. Ju...

6年以上前 | 0

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Deleting Characters from String and Repeating
Well, I don't know how you get L=96 from 50 bytes and I don't think it's likely what you're really going to need, but.. Given t...

6年以上前 | 0

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plot 3D minimum value of a function
Don't think it could be any easier...look at the following from one of the surf examples: [X,Y,Z] = peaks(25); CO(:,:,1) = zer...

6年以上前 | 1

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Plot graph with different markers
See <Marker in Graphplot properties>. Pass an index array to the position of the desired marker type as the 'Marker' property. ...

6年以上前 | 1

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Concatenating strings w/ character with while loops
>> myname = 'Nate Johnson'; >> split(myname) ans = 2×1 cell array {'Nate' } {'Johnson'} >> presuming the nex...

6年以上前 | 0

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How to find the name of the first filed of a struct?
If the struct variable is s, then name=fieldnames(s); name=name(1); No way to write the second-level addressing w/o the inter...

6年以上前 | 1

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Replace NaN with Blanks
Can't be done--a double array has to be regular in both dimension; can't have holes. Only possibility is to convert to a cell a...

6年以上前 | 0

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fprintf and fscanf same format fail to read file. appreciate help
MATLAB is NOT Fortran. As Stephen notes above and is documented, fscanf returns a single array of a given class; if there are a...

6年以上前 | 1

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fprintf and fscanf same format fail to read file. appreciate help
fprintf(fid,'%5i%5i %17.4E%17.4E\r\n', A); will write A in column-major order, not row-major as you're trying to read it in l...

6年以上前 | 0

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How to combine datetime and duration columns to form 1 new datetime column in table
Add the duration to the date... Starting with: t = 3×3 table Date Time Data ___________ ____...

6年以上前 | 5

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How to Delete certain rows in a Matrix
Use indexing expressions... N1=15; % number to save N2=90; ...

6年以上前 | 1

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