dpb
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回答済み
limits are too large
K>> format short K>> sum(X(:)>1E100)/numel(X) ans = 0.8499 K>> sum(X(:)>1E200)/numel(X) ans = 0.7848 K>> sum(X(:)...
limits are too large
K>> format short K>> sum(X(:)>1E100)/numel(X) ans = 0.8499 K>> sum(X(:)>1E200)/numel(X) ans = 0.7848 K>> sum(X(:)...
約7時間 前 | 0
質問
regexrep for the neophyte
How to write expression to find and convert financial strings written with comma separator to be able to parse numerically? Exa...
約13時間 前 | 0 件の回答 | 0
0
回答質問
Brain freeze re: grouping and recombination
Have two files of correlated data via a categorical variable -- in the first, the name field has been normalized such that can f...
3日 前 | 0 件の回答 | 0
0
回答回答済み
while/for loop
"know i have to use a for or while loop..." Not with Matlab, no! Use Logical indexing (link) as illustrated...
while/for loop
"know i have to use a for or while loop..." Not with Matlab, no! Use Logical indexing (link) as illustrated...
4日 前 | 0
回答済み
Reading a csv file
You started off well w/ the readtable route...but, once you've got the table, then use the variables there, don't create new one...
Reading a csv file
You started off well w/ the readtable route...but, once you've got the table, then use the variables there, don't create new one...
4日 前 | 1
回答済み
computing second derivative from txt/csv file based on existing excel algorithm
Here's perfect example why Matlab excels over Excel... :) txyz=importdata('B0264_dollyo_air_P_T01 rtoe.txt',',',8); % read the...
computing second derivative from txt/csv file based on existing excel algorithm
Here's perfect example why Matlab excels over Excel... :) txyz=importdata('B0264_dollyo_air_P_T01 rtoe.txt',',',8); % read the...
5日 前 | 0
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How can I save a word e.g. 'apple' in a text file, without matlab separating every letter with a comma?
You undoubtedly use csvwrite or similar to write a character array -- internally a char() array is just that--an array of number...
How can I save a word e.g. 'apple' in a text file, without matlab separating every letter with a comma?
You undoubtedly use csvwrite or similar to write a character array -- internally a char() array is just that--an array of number...
7日 前 | 1
| 採用済み
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how to add a matrix element in a fzero function
As you wrote it, the function is the literal text including the argument so nothing ever gets substituted for dynamically--one w...
how to add a matrix element in a fzero function
As you wrote it, the function is the literal text including the argument so nothing ever gets substituted for dynamically--one w...
7日 前 | 0
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How to find intersection point of two curves, when the intersection point is not there in data sets?
Both intersection sections appear to be straight lines; fit them and use fzero to find the point bblue=polyfit(xblue,yblue,1); ...
How to find intersection point of two curves, when the intersection point is not there in data sets?
Both intersection sections appear to be straight lines; fit them and use fzero to find the point bblue=polyfit(xblue,yblue,1); ...
7日 前 | 0
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second degree polynomial regression and all the coefficients
Higher order polynomials aren't going to help here...the following code generated the figure: for i=3:9 subplot(4,2,i-2); ...
second degree polynomial regression and all the coefficients
Higher order polynomials aren't going to help here...the following code generated the figure: for i=3:9 subplot(4,2,i-2); ...
7日 前 | 0
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code for computing the pvalue
fnP=@(a,i) (sum(a(i)>a(1:i))+0.5*sum(a(i)==a(1:i)))/i; >> for i=2:numel(Si),fnP(Si,i),end ans = 0.75 ans = ...
code for computing the pvalue
fnP=@(a,i) (sum(a(i)>a(1:i))+0.5*sum(a(i)==a(1:i)))/i; >> for i=2:numel(Si),fnP(Si,i),end ans = 0.75 ans = ...
10日 前 | 1
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How to change values of x axis from numbers to dates
x = -10:0.1:10; y = sin(x); hF=figure; % keep handle to figure plot(x,y) hAx(1)=gca; ...
How to change values of x axis from numbers to dates
x = -10:0.1:10; y = sin(x); hF=figure; % keep handle to figure plot(x,y) hAx(1)=gca; ...
11日 前 | 1
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回答済み
Correlating Two Arrays Using Correcoef
There's at least one NaN in the second variable...you don't give any information about which is which. >> spd=5*rand(500,1);tlt...
Correlating Two Arrays Using Correcoef
There's at least one NaN in the second variable...you don't give any information about which is which. >> spd=5*rand(500,1);tlt...
11日 前 | 0
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回答済み
second degree polynomial regression and all the coefficients
Taking a shot that the presumption earlier is the correct one-- xy=xlsread('ML.xlsx','sheet2'); % read the data into array ...
second degree polynomial regression and all the coefficients
Taking a shot that the presumption earlier is the correct one-- xy=xlsread('ML.xlsx','sheet2'); % read the data into array ...
12日 前 | 0
回答済み
Writing first and last line of each cell
Just have to handle the special case outside the loop... xx=zeros(length(xxMM)+1,6); xx(1,:)=xxMM{1,:}(1,:); for i=1:length(x...
Writing first and last line of each cell
Just have to handle the special case outside the loop... xx=zeros(length(xxMM)+1,6); xx(1,:)=xxMM{1,:}(1,:); for i=1:length(x...
14日 前 | 0
| 採用済み
回答済み
Plotting graph of negative values of array in integral2 with 3 variables
The functional is invariant upon the the loop; remove the definition from inside the loop Use meaningful name for the degrees a...
Plotting graph of negative values of array in integral2 with 3 variables
The functional is invariant upon the the loop; remove the definition from inside the loop Use meaningful name for the degrees a...
14日 前 | 1
回答済み
Finding pythagoras triples when only c is known
Somewhat more rudimentary would be UP=fix(sqrt(Csq-1)); % can't be bigger ignoring degenerate case of (sqrt(Csq^2),0) for i=1:...
Finding pythagoras triples when only c is known
Somewhat more rudimentary would be UP=fix(sqrt(Csq-1)); % can't be bigger ignoring degenerate case of (sqrt(Csq^2),0) for i=1:...
14日 前 | 1
回答済み
Plot A Graph With Asymptotic Behavior
ymaxCX = max(max(CX), limCSss); yminCX = min(min(CX), limCSss); Just getting an overall min/max value of the data in vector C...
Plot A Graph With Asymptotic Behavior
ymaxCX = max(max(CX), limCSss); yminCX = min(min(CX), limCSss); Just getting an overall min/max value of the data in vector C...
14日 前 | 0
回答済み
I need to classify my result in catagories
N=1.5*ones(size(ma)); N(abs(ma)==45 | abs(ma)==135)=-0.5; ... The rest should be self-evident from the above; lett as "exerci...
I need to classify my result in catagories
N=1.5*ones(size(ma)); N(abs(ma)==45 | abs(ma)==135)=-0.5; ... The rest should be self-evident from the above; lett as "exerci...
15日 前 | 0
回答済み
Getting the correct y-intercept and gradient for a trend line using 'fit'
Looks quite right to me...the intercept is where the fitted line will cross (intercept) the y-axis at x=0...that point is way an...
Getting the correct y-intercept and gradient for a trend line using 'fit'
Looks quite right to me...the intercept is where the fitted line will cross (intercept) the y-axis at x=0...that point is way an...
15日 前 | 0
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回答済み
How to add a column to an existing file?
Text sequential files are, well, "sequential" You can't just add in the middle by either column or line/record. data=importdat...
How to add a column to an existing file?
Text sequential files are, well, "sequential" You can't just add in the middle by either column or line/record. data=importdat...
15日 前 | 2
回答済み
is it possible to copy a file on itself?
That isn't copying a file onto itself; there's nothing to prevent you doing what you want. Your copyfile command isn't referenc...
is it possible to copy a file on itself?
That isn't copying a file onto itself; there's nothing to prevent you doing what you want. Your copyfile command isn't referenc...
15日 前 | 0
回答済み
Ploting every n-th result in a for loop
v=2;L=100; N=10; for t=0:0.01*N/v:L/v clf ... To introduce a 10-fold reduction...
Ploting every n-th result in a for loop
v=2;L=100; N=10; for t=0:0.01*N/v:L/v clf ... To introduce a 10-fold reduction...
15日 前 | 0
回答済み
How can I plot hourly data in the same figure?
Use the features of Matlab to your advantage...granted, it takes some "time in grade!" to learn one's way around! :) As a gene...
How can I plot hourly data in the same figure?
Use the features of Matlab to your advantage...granted, it takes some "time in grade!" to learn one's way around! :) As a gene...
15日 前 | 0
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回答済み
Create a table with Revenue by financial year such as 2017-18
t=readtable('chindamo.xlsx'); % read the input table data t.Code=categorical(t.Code); ...
Create a table with Revenue by financial year such as 2017-18
t=readtable('chindamo.xlsx'); % read the input table data t.Code=categorical(t.Code); ...
16日 前 | 0
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I can't delete plot and line in a figure
... p1 = line([xr xr],[0 f(xr)]); line([xr xr],[0 f(xr)]) ... x = [-10 0.01 10]; y = (x-xr).*df(xr)...
I can't delete plot and line in a figure
... p1 = line([xr xr],[0 f(xr)]); line([xr xr],[0 f(xr)]) ... x = [-10 0.01 10]; y = (x-xr).*df(xr)...
17日 前 | 0
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marker size difference between 'plot' and 'scatter' function
Per the documentation, scatter marker size property is marker proportional to area while the line marker property is proportiona...
marker size difference between 'plot' and 'scatter' function
Per the documentation, scatter marker size property is marker proportional to area while the line marker property is proportiona...
18日 前 | 0
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How to convert each row of the matrix into a Character array, without using a for command?
Preallocate B may help just tad... Alternatives to loop include B=cellstr(num2str(A)); but what is end purpose for doing the ...
How to convert each row of the matrix into a Character array, without using a for command?
Preallocate B may help just tad... Alternatives to loop include B=cellstr(num2str(A)); but what is end purpose for doing the ...
18日 前 | 0
| 採用済み
回答済み
Black and Grey Bars in Barplot
Need to apply the colormap to something... hAx=subplot(2,2,1); clrs = [0 0 0; 0.9 0.9 0.9]; colormap(hAx,clrs); hB=bar([perc...
Black and Grey Bars in Barplot
Need to apply the colormap to something... hAx=subplot(2,2,1); clrs = [0 0 0; 0.9 0.9 0.9]; colormap(hAx,clrs); hB=bar([perc...
18日 前 | 0
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質問
Categorical variable in cell array?
This seems absurdly trivial but I haven't found the right syntax...I was trying to add a categorical variable to a cell array to...
19日 前 | 0 件の回答 | 0