I have a large datastore as a csv file. A couple of variables have occasional alphabetical letters (e.g., "C") mixed in with observations that are otherwise numerals. dsread reports errors as seen below. What steps allow me to read the datastore, correcting for occasional errors?
Are there methods to construct/define the datastore such that a read recognizes the letters?

Error using matlab.io.datastore.TabularTextDatastore/readData (line 78)
Unable to parse a "Numeric" field when reading row 81, field 16.
Actual Text: "C,27108,16,16,C"
Expected: A number or literal "NaN", "Inf". (possibly signed, case insensitive)

Error in matlab.io.datastore.TabularDatastore/read (line 174)
[t, info] = ds.readData();

Error in untitled (line 11)
dC = read(ds);

Caused by:
Reading the variable name ‘RET’ using format ‘%f’ from file:
‘C:UsersdbrownBoxBrown_CarldatarawDistributionsDaily_Returns_CRSP_S&P500_1962-2024.csv’
starting at offset 1787951.I have a large datastore as a csv file. A couple of variables have occasional alphabetical letters (e.g., "C") mixed in with observations that are otherwise numerals. dsread reports errors as seen below. What steps allow me to read the datastore, correcting for occasional errors?
Are there methods to construct/define the datastore such that a read recognizes the letters?

Error using matlab.io.datastore.TabularTextDatastore/readData (line 78)
Unable to parse a "Numeric" field when reading row 81, field 16.
Actual Text: "C,27108,16,16,C"
Expected: A number or literal "NaN", "Inf". (possibly signed, case insensitive)

Error in matlab.io.datastore.TabularDatastore/read (line 174)
[t, info] = ds.readData();

Error in untitled (line 11)
dC = read(ds);

Caused by:
Reading the variable name ‘RET’ using format ‘%f’ from file:
‘C:UsersdbrownBoxBrown_CarldatarawDistributionsDaily_Returns_CRSP_S&P500_1962-2024.csv’
starting at offset 1787951. I have a large datastore as a csv file. A couple of variables have occasional alphabetical letters (e.g., "C") mixed in with observations that are otherwise numerals. dsread reports errors as seen below. What steps allow me to read the datastore, correcting for occasional errors?
Are there methods to construct/define the datastore such that a read recognizes the letters?

Error using matlab.io.datastore.TabularTextDatastore/readData (line 78)
Unable to parse a "Numeric" field when reading row 81, field 16.
Actual Text: "C,27108,16,16,C"
Expected: A number or literal "NaN", "Inf". (possibly signed, case insensitive)

Error in matlab.io.datastore.TabularDatastore/read (line 174)
[t, info] = ds.readData();

Error in untitled (line 11)
dC = read(ds);

Caused by:
Reading the variable name ‘RET’ using format ‘%f’ from file:
‘C:UsersdbrownBoxBrown_CarldatarawDistributionsDaily_Returns_CRSP_S&P500_1962-2024.csv’
starting at offset 1787951. datastore, mixed class variables MATLAB Answers — New Questions

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I have the following expression which i need to find.
then how i can find the integration? here this k is vector which contain k0,k1,k2, and same d and e is also a vector which contain d1,d2,d3 and e1, e2 ,e3 . and is also given. Then how i can evaluate this integration.I have the following expression which i need to find.
then how i can find the integration? here this k is vector which contain k0,k1,k2, and same d and e is also a vector which contain d1,d2,d3 and e1, e2 ,e3 . and is also given. Then how i can evaluate this integration. I have the following expression which i need to find.
then how i can find the integration? here this k is vector which contain k0,k1,k2, and same d and e is also a vector which contain d1,d2,d3 and e1, e2 ,e3 . and is also given. Then how i can evaluate this integration. numerical integration MATLAB Answers — New Questions

​

Hi,
I am trying to simulate a refractive index change in a medium, to do that I need to accurately model the evolution of said index with a sinusoidal function with variating period (see picture below for an exemple).

The function is written as n(z)=n0+n1*cos(phi(z)) (n being the index), with phi(z)=alpha/(z+beta), I would expect that fixing beta and calculating alpha for alpha=nT*2*pi*(zmax+beta) (with nT the number of period in the interval from z=0 to z=zmax) would give me a function with nT period but it does not, where did I go wrong?
ThanksHi,
I am trying to simulate a refractive index change in a medium, to do that I need to accurately model the evolution of said index with a sinusoidal function with variating period (see picture below for an exemple).

The function is written as n(z)=n0+n1*cos(phi(z)) (n being the index), with phi(z)=alpha/(z+beta), I would expect that fixing beta and calculating alpha for alpha=nT*2*pi*(zmax+beta) (with nT the number of period in the interval from z=0 to z=zmax) would give me a function with nT period but it does not, where did I go wrong?
Thanks Hi,
I am trying to simulate a refractive index change in a medium, to do that I need to accurately model the evolution of said index with a sinusoidal function with variating period (see picture below for an exemple).

The function is written as n(z)=n0+n1*cos(phi(z)) (n being the index), with phi(z)=alpha/(z+beta), I would expect that fixing beta and calculating alpha for alpha=nT*2*pi*(zmax+beta) (with nT the number of period in the interval from z=0 to z=zmax) would give me a function with nT period but it does not, where did I go wrong?
Thanks matlab, mathematics MATLAB Answers — New Questions

​

Hello,
I have to plot some data over these coordinates:

Until Matlab 2024a release I was able to correctly do it with contourfm through the code line:
contourfm(latPlot,lonPlot,data,CXanom(lp,1):0.125:CXanom(lp,2),’LineStyle’,’none’);
From Matlab 2024b release, lat and lon are not accepted anymore and there is the need to create reference raster cells. Here the code for Matlab 2024b:
ax=worldmap([min(latPlot(:)),max(latPlot(:))],[min(lonPlot(:)),max(lonPlot(:))]);
RefCells=georefcells([min(latPlot(:)),max(latPlot(:))],[min(lonPlot(:)),max(lonPlot(:))],[size(latPlot)]);
contourfm(data,RefCells,CXanom(lp,1):0.125:CXanom(lp,2),’LineStyle’,’none’);
hold on;
[C,h]=contourm(data,RefCells,CXanom(lp,1):StepLineAnom:CXanom(lp,2),’k’);
if isempty(C)
continue;
else
clm=clabelm(C,h,CXanom(lp,1):StepLineAnom:CXanom(lp,2));
for kk=1:numel(clm)
clm(kk).BackgroundColor=’none’;
clm(kk).FontWeight=’bold’;
clm(kk).Color=’k’;
end
for kk=1:numel(h.Children)
h.Children(kk).LineStyle=’:’;
end
end
plotm(BordersWorldHR(:,2),BordersWorldHR(:,1),’k’);
p=plotm(LatCC,LonCC,’xw’);
p.MarkerSize=8;
p.LineWidth=2;
p.MarkerEdgeColor=[0.96,0.96,0.96];
p.MarkerFaceColor=[0.96,0.96,0.96];
setm(ax,’FontSize’,10);
colormap(turbo);
hc=colorbar;
ylabel(hc,[‘TB Anomaly ‘,AMSUA_ch{ch},’ GHz (K)’]);
hc.FontSize=9;
hc.Ticks=CXanom(lp,1):(CXanom(lp,2)-CXanom(lp,1))/size(CMP1.(FN1),1):CXanom(lp,2);
hc.TickLabels=num2str(hc.Ticks’,’%.1f’);
clim(CXanom(lp,:));
hl=legend(p,’Min MSLP’);
hl.Location=’NorthWest’;
hl.FontSize=8;
hl.Color=[0.82,0.82,0.82];
set(gcf,’InvertHardCopy’,’off’);
What I get is the following:

but what I have to get is the following (made with pcolorm):

Can anyone help me to fix this issue? I attach both the data and the figures. Thanks.Hello,
I have to plot some data over these coordinates:

Until Matlab 2024a release I was able to correctly do it with contourfm through the code line:
contourfm(latPlot,lonPlot,data,CXanom(lp,1):0.125:CXanom(lp,2),’LineStyle’,’none’);
From Matlab 2024b release, lat and lon are not accepted anymore and there is the need to create reference raster cells. Here the code for Matlab 2024b:
ax=worldmap([min(latPlot(:)),max(latPlot(:))],[min(lonPlot(:)),max(lonPlot(:))]);
RefCells=georefcells([min(latPlot(:)),max(latPlot(:))],[min(lonPlot(:)),max(lonPlot(:))],[size(latPlot)]);
contourfm(data,RefCells,CXanom(lp,1):0.125:CXanom(lp,2),’LineStyle’,’none’);
hold on;
[C,h]=contourm(data,RefCells,CXanom(lp,1):StepLineAnom:CXanom(lp,2),’k’);
if isempty(C)
continue;
else
clm=clabelm(C,h,CXanom(lp,1):StepLineAnom:CXanom(lp,2));
for kk=1:numel(clm)
clm(kk).BackgroundColor=’none’;
clm(kk).FontWeight=’bold’;
clm(kk).Color=’k’;
end
for kk=1:numel(h.Children)
h.Children(kk).LineStyle=’:’;
end
end
plotm(BordersWorldHR(:,2),BordersWorldHR(:,1),’k’);
p=plotm(LatCC,LonCC,’xw’);
p.MarkerSize=8;
p.LineWidth=2;
p.MarkerEdgeColor=[0.96,0.96,0.96];
p.MarkerFaceColor=[0.96,0.96,0.96];
setm(ax,’FontSize’,10);
colormap(turbo);
hc=colorbar;
ylabel(hc,[‘TB Anomaly ‘,AMSUA_ch{ch},’ GHz (K)’]);
hc.FontSize=9;
hc.Ticks=CXanom(lp,1):(CXanom(lp,2)-CXanom(lp,1))/size(CMP1.(FN1),1):CXanom(lp,2);
hc.TickLabels=num2str(hc.Ticks’,’%.1f’);
clim(CXanom(lp,:));
hl=legend(p,’Min MSLP’);
hl.Location=’NorthWest’;
hl.FontSize=8;
hl.Color=[0.82,0.82,0.82];
set(gcf,’InvertHardCopy’,’off’);
What I get is the following:

but what I have to get is the following (made with pcolorm):

Can anyone help me to fix this issue? I attach both the data and the figures. Thanks. Hello,
I have to plot some data over these coordinates:

Until Matlab 2024a release I was able to correctly do it with contourfm through the code line:
contourfm(latPlot,lonPlot,data,CXanom(lp,1):0.125:CXanom(lp,2),’LineStyle’,’none’);
From Matlab 2024b release, lat and lon are not accepted anymore and there is the need to create reference raster cells. Here the code for Matlab 2024b:
ax=worldmap([min(latPlot(:)),max(latPlot(:))],[min(lonPlot(:)),max(lonPlot(:))]);
RefCells=georefcells([min(latPlot(:)),max(latPlot(:))],[min(lonPlot(:)),max(lonPlot(:))],[size(latPlot)]);
contourfm(data,RefCells,CXanom(lp,1):0.125:CXanom(lp,2),’LineStyle’,’none’);
hold on;
[C,h]=contourm(data,RefCells,CXanom(lp,1):StepLineAnom:CXanom(lp,2),’k’);
if isempty(C)
continue;
else
clm=clabelm(C,h,CXanom(lp,1):StepLineAnom:CXanom(lp,2));
for kk=1:numel(clm)
clm(kk).BackgroundColor=’none’;
clm(kk).FontWeight=’bold’;
clm(kk).Color=’k’;
end
for kk=1:numel(h.Children)
h.Children(kk).LineStyle=’:’;
end
end
plotm(BordersWorldHR(:,2),BordersWorldHR(:,1),’k’);
p=plotm(LatCC,LonCC,’xw’);
p.MarkerSize=8;
p.LineWidth=2;
p.MarkerEdgeColor=[0.96,0.96,0.96];
p.MarkerFaceColor=[0.96,0.96,0.96];
setm(ax,’FontSize’,10);
colormap(turbo);
hc=colorbar;
ylabel(hc,[‘TB Anomaly ‘,AMSUA_ch{ch},’ GHz (K)’]);
hc.FontSize=9;
hc.Ticks=CXanom(lp,1):(CXanom(lp,2)-CXanom(lp,1))/size(CMP1.(FN1),1):CXanom(lp,2);
hc.TickLabels=num2str(hc.Ticks’,’%.1f’);
clim(CXanom(lp,:));
hl=legend(p,’Min MSLP’);
hl.Location=’NorthWest’;
hl.FontSize=8;
hl.Color=[0.82,0.82,0.82];
set(gcf,’InvertHardCopy’,’off’);
What I get is the following:

but what I have to get is the following (made with pcolorm):

Can anyone help me to fix this issue? I attach both the data and the figures. Thanks. contourfm MATLAB Answers — New Questions

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So, I’ve got 2 pulses (imp and S0) and their sum (Si). I’ve got to find minimum of sum (Si). And I approximate the sum with a polynome. I took derivatives (1-st and 2-nd order) of the sum and polynome.
I analyze derivatives, and decided to look for minimum of sum (Si), polynome and 2-nd derivatives.
But, in some cases the result is just empty, but size of variable is 1×999 double.

lb = -5;
ub = 15;
x_imp = linspace(lb, ub, 1001);
x = linspace(lb, ub, 1001);

imp = sech(x_imp);
S0 = sech(x-10);

imp1 = sech(x – 1);
S1 = 0.5 * (imp1 + S0);

xmin = -1;
xmax = 10;
% find inflection point Si
range_x = x(x>=xmin & x<=xmax);
range_S1 = S1(x>=xmin & x<=xmax);
MinPtsS1 = islocalmin(range_S1);
fprintf (‘x_S1 = %f , y_S1 = %f .n’, range_x(MinPtsS1), range_S1(MinPtsS1));

% polynom approximation pv
[p_S1, ~, mu] = polyfit(x, S1, 26);
pv_S1 = polyval (p_S1, x, [], mu);

% find inflection point of polynom pv

range_x = x(x>=xmin & x<=xmax);
range_pvS1 = pv_S1(x>=xmin & x<=xmax);
MinPts_pvS1 = islocalmin(range_pvS1);
fprintf(‘x_pvS1 = %f , y_pvS1 = %f .n’, range_x(MinPts_pvS1), range_pvS1(MinPts_pvS1));

% DIFF find inflection of diff2 Si, corresponding to inflection point of Si
dS1 = 20*diff (S1);
d2S1 = 10*diff(dS1);
range_x = x(x>=xmin & x<=xmin);
range_d2S1 = d2S1(x>=xmin & x<=xmin);
MinPts_d2S1 = islocalmin(range_d2S1);
fprintf(‘x_d2S1 = %f , y_d2S1 = %f .n’, range_x(MinPts_d2S1), range_d2S1(MinPts_d2S1));
% DIFF find inflection of diff2 polynom Si, corresponding to inflection point of Si
dpS1 = 20*diff(pv_S1);
dp2S1 = 20*diff(dpS1);
range_x = x(x>=xmin & x<=xmax);
range_dp2S1 = dp2S1(x>=xmin & x<=xmax);
MinPts_dp2S1 = islocalmin(range_dp2S1);
fprintf(‘x_dp2S1 = %f , y_dp2S1 = %f .n’, range_x(MinPts_dp2S1), range_dp2S1(MinPts_dp2S1));So, I’ve got 2 pulses (imp and S0) and their sum (Si). I’ve got to find minimum of sum (Si). And I approximate the sum with a polynome. I took derivatives (1-st and 2-nd order) of the sum and polynome.
I analyze derivatives, and decided to look for minimum of sum (Si), polynome and 2-nd derivatives.
But, in some cases the result is just empty, but size of variable is 1×999 double.

lb = -5;
ub = 15;
x_imp = linspace(lb, ub, 1001);
x = linspace(lb, ub, 1001);

imp = sech(x_imp);
S0 = sech(x-10);

imp1 = sech(x – 1);
S1 = 0.5 * (imp1 + S0);

xmin = -1;
xmax = 10;
% find inflection point Si
range_x = x(x>=xmin & x<=xmax);
range_S1 = S1(x>=xmin & x<=xmax);
MinPtsS1 = islocalmin(range_S1);
fprintf (‘x_S1 = %f , y_S1 = %f .n’, range_x(MinPtsS1), range_S1(MinPtsS1));

% polynom approximation pv
[p_S1, ~, mu] = polyfit(x, S1, 26);
pv_S1 = polyval (p_S1, x, [], mu);

% find inflection point of polynom pv

range_x = x(x>=xmin & x<=xmax);
range_pvS1 = pv_S1(x>=xmin & x<=xmax);
MinPts_pvS1 = islocalmin(range_pvS1);
fprintf(‘x_pvS1 = %f , y_pvS1 = %f .n’, range_x(MinPts_pvS1), range_pvS1(MinPts_pvS1));

% DIFF find inflection of diff2 Si, corresponding to inflection point of Si
dS1 = 20*diff (S1);
d2S1 = 10*diff(dS1);
range_x = x(x>=xmin & x<=xmin);
range_d2S1 = d2S1(x>=xmin & x<=xmin);
MinPts_d2S1 = islocalmin(range_d2S1);
fprintf(‘x_d2S1 = %f , y_d2S1 = %f .n’, range_x(MinPts_d2S1), range_d2S1(MinPts_d2S1));
% DIFF find inflection of diff2 polynom Si, corresponding to inflection point of Si
dpS1 = 20*diff(pv_S1);
dp2S1 = 20*diff(dpS1);
range_x = x(x>=xmin & x<=xmax);
range_dp2S1 = dp2S1(x>=xmin & x<=xmax);
MinPts_dp2S1 = islocalmin(range_dp2S1);
fprintf(‘x_dp2S1 = %f , y_dp2S1 = %f .n’, range_x(MinPts_dp2S1), range_dp2S1(MinPts_dp2S1)); So, I’ve got 2 pulses (imp and S0) and their sum (Si). I’ve got to find minimum of sum (Si). And I approximate the sum with a polynome. I took derivatives (1-st and 2-nd order) of the sum and polynome.
I analyze derivatives, and decided to look for minimum of sum (Si), polynome and 2-nd derivatives.
But, in some cases the result is just empty, but size of variable is 1×999 double.

lb = -5;
ub = 15;
x_imp = linspace(lb, ub, 1001);
x = linspace(lb, ub, 1001);

imp = sech(x_imp);
S0 = sech(x-10);

imp1 = sech(x – 1);
S1 = 0.5 * (imp1 + S0);

xmin = -1;
xmax = 10;
% find inflection point Si
range_x = x(x>=xmin & x<=xmax);
range_S1 = S1(x>=xmin & x<=xmax);
MinPtsS1 = islocalmin(range_S1);
fprintf (‘x_S1 = %f , y_S1 = %f .n’, range_x(MinPtsS1), range_S1(MinPtsS1));

% polynom approximation pv
[p_S1, ~, mu] = polyfit(x, S1, 26);
pv_S1 = polyval (p_S1, x, [], mu);

% find inflection point of polynom pv

range_x = x(x>=xmin & x<=xmax);
range_pvS1 = pv_S1(x>=xmin & x<=xmax);
MinPts_pvS1 = islocalmin(range_pvS1);
fprintf(‘x_pvS1 = %f , y_pvS1 = %f .n’, range_x(MinPts_pvS1), range_pvS1(MinPts_pvS1));

% DIFF find inflection of diff2 Si, corresponding to inflection point of Si
dS1 = 20*diff (S1);
d2S1 = 10*diff(dS1);
range_x = x(x>=xmin & x<=xmin);
range_d2S1 = d2S1(x>=xmin & x<=xmin);
MinPts_d2S1 = islocalmin(range_d2S1);
fprintf(‘x_d2S1 = %f , y_d2S1 = %f .n’, range_x(MinPts_d2S1), range_d2S1(MinPts_d2S1));
% DIFF find inflection of diff2 polynom Si, corresponding to inflection point of Si
dpS1 = 20*diff(pv_S1);
dp2S1 = 20*diff(dpS1);
range_x = x(x>=xmin & x<=xmax);
range_dp2S1 = dp2S1(x>=xmin & x<=xmax);
MinPts_dp2S1 = islocalmin(range_dp2S1);
fprintf(‘x_dp2S1 = %f , y_dp2S1 = %f .n’, range_x(MinPts_dp2S1), range_dp2S1(MinPts_dp2S1)); empty output, derivative, diff, polyval MATLAB Answers — New Questions

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Where am I going wrong?Where am I going wrong? Where am I going wrong? inverse sine of the sine MATLAB Answers — New Questions

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i want to use ltpda and then plist. But if i use it as ‘ltpda_startup’ , matlab cant recognize it and after that ‘plist’. In 2016 and 2017 version of matlab it worked. How can i fix it in 2023 version or is there any alternative solutions for it?i want to use ltpda and then plist. But if i use it as ‘ltpda_startup’ , matlab cant recognize it and after that ‘plist’. In 2016 and 2017 version of matlab it worked. How can i fix it in 2023 version or is there any alternative solutions for it? i want to use ltpda and then plist. But if i use it as ‘ltpda_startup’ , matlab cant recognize it and after that ‘plist’. In 2016 and 2017 version of matlab it worked. How can i fix it in 2023 version or is there any alternative solutions for it? image processing, ltpda MATLAB Answers — New Questions

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i need a matlab simulink model for 3 phase transformer which is at no – load. now when it is energized initially, it should take an inrush current in primary side of transformer.i need a matlab simulink model for 3 phase transformer which is at no – load. now when it is energized initially, it should take an inrush current in primary side of transformer. i need a matlab simulink model for 3 phase transformer which is at no – load. now when it is energized initially, it should take an inrush current in primary side of transformer. 3 phase transformer, inrush current MATLAB Answers — New Questions

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I need to map a polygon shapefile in a choropleth map and interactively show the name of the specific polygon on which I click with the mouse. The default data tool tip does not work for me because: (1) information gets displayed for each polygon vertex, while I need the information only when clicking in the inner part of the polygon; (2) apparently, the only information it can show are coordinates.
To give an idea of what I am after, I produce hereby a minimum working example. In the last line of this example, I add all polygon names via the text command, associating each polygon to a unique inner point. This determines the placement of the text. What I need, instead, is for such text to be displayed only for the single polygon on which I click with the mouse.
Any help would be greatly appreciated.

% Minimum working example
% pgn = shaperead(‘pgn.shp’);
% pts = shaperead(‘pts.shp’);
load(‘pgn.mat’)
load(‘pts.mat’)
colorgradient = parula(height(pgn));
cbarlim = [floor(min([pgn.MA1911])) ceil(max([pgn.MA1911]))];
symbpgn = makesymbolspec(‘Polygon’, …
{‘MA1911’, cbarlim, ‘FaceColor’, colorgradient});
mapshow(pgn,’SymbolSpec’,symbpgn);
disableDefaultInteractivity(gca) % This prevents polygon vertex coordinates from showing in the tooltip
ax = gca;
ax.CLim = cbarlim;
h = colorbar;
h.Label.String = ‘people’;
axis equal
axis off
hold on
text([pts.X]’,[pts.Y]’,{pts.UNIT}’) % This is what needs to become interactiveI need to map a polygon shapefile in a choropleth map and interactively show the name of the specific polygon on which I click with the mouse. The default data tool tip does not work for me because: (1) information gets displayed for each polygon vertex, while I need the information only when clicking in the inner part of the polygon; (2) apparently, the only information it can show are coordinates.
To give an idea of what I am after, I produce hereby a minimum working example. In the last line of this example, I add all polygon names via the text command, associating each polygon to a unique inner point. This determines the placement of the text. What I need, instead, is for such text to be displayed only for the single polygon on which I click with the mouse.
Any help would be greatly appreciated.

% Minimum working example
% pgn = shaperead(‘pgn.shp’);
% pts = shaperead(‘pts.shp’);
load(‘pgn.mat’)
load(‘pts.mat’)
colorgradient = parula(height(pgn));
cbarlim = [floor(min([pgn.MA1911])) ceil(max([pgn.MA1911]))];
symbpgn = makesymbolspec(‘Polygon’, …
{‘MA1911’, cbarlim, ‘FaceColor’, colorgradient});
mapshow(pgn,’SymbolSpec’,symbpgn);
disableDefaultInteractivity(gca) % This prevents polygon vertex coordinates from showing in the tooltip
ax = gca;
ax.CLim = cbarlim;
h = colorbar;
h.Label.String = ‘people’;
axis equal
axis off
hold on
text([pts.X]’,[pts.Y]’,{pts.UNIT}’) % This is what needs to become interactive I need to map a polygon shapefile in a choropleth map and interactively show the name of the specific polygon on which I click with the mouse. The default data tool tip does not work for me because: (1) information gets displayed for each polygon vertex, while I need the information only when clicking in the inner part of the polygon; (2) apparently, the only information it can show are coordinates.
To give an idea of what I am after, I produce hereby a minimum working example. In the last line of this example, I add all polygon names via the text command, associating each polygon to a unique inner point. This determines the placement of the text. What I need, instead, is for such text to be displayed only for the single polygon on which I click with the mouse.
Any help would be greatly appreciated.

% Minimum working example
% pgn = shaperead(‘pgn.shp’);
% pts = shaperead(‘pts.shp’);
load(‘pgn.mat’)
load(‘pts.mat’)
colorgradient = parula(height(pgn));
cbarlim = [floor(min([pgn.MA1911])) ceil(max([pgn.MA1911]))];
symbpgn = makesymbolspec(‘Polygon’, …
{‘MA1911’, cbarlim, ‘FaceColor’, colorgradient});
mapshow(pgn,’SymbolSpec’,symbpgn);
disableDefaultInteractivity(gca) % This prevents polygon vertex coordinates from showing in the tooltip
ax = gca;
ax.CLim = cbarlim;
h = colorbar;
h.Label.String = ‘people’;
axis equal
axis off
hold on
text([pts.X]’,[pts.Y]’,{pts.UNIT}’) % This is what needs to become interactive mapshow, tooltip MATLAB Answers — New Questions

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I am trying to add a bulleted list in a Matlab annotation textbox. I’ve tried using LaTex commands but all I get is: Unable to interpret latex string, such as

str = ‘begin{itemized} item First Line item Second Line end{itemized}’;
figure;
ha = annotation(‘textbox’, [0.5 0.5 0.4 0.2], ‘Interpreter’, ‘latex’);
set(ha, ‘String’, str)

This is similar to the way you put a table in an annotated textbox:

<http://www.mathworks.com/matlabcentral/answers/99523-how-do-i-create-a-latex-table-in-a-matlab-text-box Latex Table>I am trying to add a bulleted list in a Matlab annotation textbox. I’ve tried using LaTex commands but all I get is: Unable to interpret latex string, such as

str = ‘begin{itemized} item First Line item Second Line end{itemized}’;
figure;
ha = annotation(‘textbox’, [0.5 0.5 0.4 0.2], ‘Interpreter’, ‘latex’);
set(ha, ‘String’, str)

This is similar to the way you put a table in an annotated textbox:

<http://www.mathworks.com/matlabcentral/answers/99523-how-do-i-create-a-latex-table-in-a-matlab-text-box Latex Table> I am trying to add a bulleted list in a Matlab annotation textbox. I’ve tried using LaTex commands but all I get is: Unable to interpret latex string, such as

str = ‘begin{itemized} item First Line item Second Line end{itemized}’;
figure;
ha = annotation(‘textbox’, [0.5 0.5 0.4 0.2], ‘Interpreter’, ‘latex’);
set(ha, ‘String’, str)

This is similar to the way you put a table in an annotated textbox:

<http://www.mathworks.com/matlabcentral/answers/99523-how-do-i-create-a-latex-table-in-a-matlab-text-box Latex Table> latex, bulleted list, annotation MATLAB Answers — New Questions

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