从Matlab绘制excel图表，如何改变颜色？

Question

您好我尝试通过MATLAB更改我的Excel条形图的颜色。

wksheet     = eWorkbook.Worksheets.Item('Sheet2');
co          = wksheet.ChartObjects.Item(1); % select the plot (this selects the first plot)
nbSeries    = co.Chart.SeriesCollection.count;
% Delete previous series
for i= 1:nbSeries
    Series = invoke(co.Chart,'SeriesCollection',1);
    invoke(Series,'Delete');
end
% Create Series
nbNewSeries = size(organizedData.Page2.CorrToIndex2Txlsx,1);
for ii = 1:nbNewSeries
    NewSeries = invoke(co.Chart.SeriesCollection,'NewSeries');
    NewSeries.XValues   = organizedData.Page2.CorrToIndex2Txlsx(ii,2);
    NewSeries.Values    = organizedData.Page2.CorrToIndex2Txlsx(ii,3);
    NewSeries.Name      = organizedData.Page2.CorrToIndex2Txlsx{ii,1};
end

我试过这个：

NewSeries3.MarkerBackgroundColor = paletteColors(iii,:)*255;

但是我收到了错误：

Parameter must be scalar.

您知道如何更改MATLAB的颜色吗？