I want to generate Heatmap for irregular Time series data

Question

vignesh mohan 2021-6-16

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/857660-i-want-to-generate-heatmap-for-irregular-time-series-data

编辑： vignesh mohan 2021-6-16

dat.csv

Dear all

I am new for matlab. I tried to plot a heat map for a dataset but it doesnt work and sample graph format is also attached for reference which i need to plot and i attached a sample data

. I had tried using the below following codes. So kindly help me to resolve this issus. Thank you in advance.

x = dta(:,1); 
y = dat(:,83);
z = dat(:,2:82); 
tbl = table(x,y,z); 
h = HeatMap(tbl,'x','y','ColorVariable','z','ColorMethod');
Error using HeatMap
Expected DATA to be one of these types:
numeric, bioma.data.DataMatrix
Instead its type was table.
Error in bioma.util.validateMatrix (line 10)
validateattributes(data, {'numeric', 'bioma.data.DataMatrix'},...
Error in HeatMap/setDisplayDataOnly (line 784)
            bioma.util.validateMatrix(data, 'DATA', 'HeatMap')
Error in HeatMap/setDisplayData (line 779)
            obj = setDisplayDataOnly(obj, data);
Error in HeatMap/set.Data (line 523)
            setDisplayData(obj, data)
Error in HeatMap (line 366)
            obj.Data = data;

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SALAH ALRABEEI 2021-6-16

try just heatmap(x,y,z)

vignesh mohan 2021-6-16

hai salah i tried that also but it doesn't work it is showing error i will try again and let you know thank you

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Answer 1

KSSV 2021-6-16

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https://ww2.mathworks.cn/matlabcentral/answers/857660-i-want-to-generate-heatmap-for-irregular-time-series-data#answer_726105

编辑：KSSV 2021-6-16

在 MATLAB Online 中打开

T = readtable('dat.csv') ;
x = T.(1) ; 
x(1) = [] ;
x = datetime(datestr(x)) ; 
y = table2array(T(1,2:end)) ;
data = table2array(T(2:end,2:end)) ;
pcolor(x,y,data')
shading interp 
colorbar

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KSSV 2021-6-16

Variable t is x... Typo error.. Edited the answer.

vignesh mohan 2021-6-16

编辑：vignesh mohan 2021-6-16

I changed it and it is going good till pcolor(x,y,data') Error using pcolor (line 63) Data inputs must be real. This above error is pop up. Next what I have to do KSSV.

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