fix issue #450. adding stackedplot functionality

[gilbertogalvis]

This PR fix the issue #450 and for this it adds the stackedplot functionality to matlab_plotly.

Example 1

tbl = readtable('outages.csv');
tbl = table2timetable(tbl);

tbl = sortrows(tbl);

stackedplot(tbl)

fig2plotly(gcf, 'offline', offline);

https://chart-studio.plotly.com/~galvisgilberto/4678/loss-customers-restorationtime/#/

Example 2

tbl = readtable('patients.xls');

stackedplot(tbl,{'Height','Weight','Systolic','Diastolic'})

fig2plotly(gcf, 'offline', offline);

https://chart-studio.plotly.com/~galvisgilberto/4680/height-weight-systolic-diastolic/#/

Example 3

tbl = readtable('outages.csv');
tbl = table2timetable(tbl);
tbl = sortrows(tbl);

stackedplot(tbl,{'RestorationTime','Loss','Customers'})

fig2plotly(gcf, 'offline', offline);

https://chart-studio.plotly.com/~galvisgilberto/4682/restorationtime-loss-customers/#/

Example 4

load patients
tbl = table(Weight,Systolic,Diastolic);

vars = [{'Systolic','Diastolic'},'Weight'];

stackedplot(tbl,vars);

fig2plotly(gcf, 'offline', offline);

https://chart-studio.plotly.com/~galvisgilberto/4684/systolic-diastolic-weight/#/

Example 5

X = [0:4:20]

Y = randi(100,6,3)

stackedplot(X,Y)

fig2plotly(gcf, 'offline', offline);

https://chart-studio.plotly.com/~galvisgilberto/4686/column-1-column-2-column-3/#/

Example 6

load outdoors
outdoors(1:3,:);

degreeSymbol = char(176);
newYlabels = {'RH (%)',['T (' degreeSymbol 'F)'],'P (in Hg)'};
stackedplot(outdoors,'Title','Weather Data','DisplayLabels',newYlabels);

fig2plotly(gcf, 'offline', offline);

https://chart-studio.plotly.com/~galvisgilberto/4688/rh-t-f-p-in-hg/#/

Example 7

load outdoors
outdoors(1:3,:);

s = stackedplot(outdoors);

s.LineWidth = 2;

s.LineProperties(2).PlotType = 'scatter';
s.LineProperties(3).PlotType = 'stairs';

fig2plotly(gcf, 'offline', offline);

https://chart-studio.plotly.com/~galvisgilberto/4690/humidity-temperaturef-pressurehg/#/

Example 8

data = {...
  struct(...
    'x', { {'2013-10-04 22:23:00', '2013-11-04 22:23:00', '2013-12-04 22:23:00'} }, ...
    'y', [1, 3, 6], ...
    'type', 'scatter')...
};

plotly(data);