HOW TO ADD XTICKLABLE IN BAR HISTOGRAM ?

Question

Sanchit 2023-7-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1994438-how-to-add-xticklable-in-bar-histogram

编辑： Mayur 2023-7-11

采纳的回答： Mayur

I am using following lines of matlab to generate bar histogram

bar(rf_classifier.OOBPermutedVarDeltaError)

ax = gca;

xlabel('Feature Number','FontSize', 16)

ylabel('Out-of-Bag Feature Importance','FontSize', 16)

ax.XTickLabel = [Td,T,EV,PEV,SSR,SSRD,TP,VPD,RH];

ax.XTickLabelRotation = 45;

However, this code is not putting the variable names on x-axix of bar diagram. I request you to kindly fix it in order to put the variable names on x-axis. I am attaching the bar figure also.

Thanks.

Sanchit

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Sanchit 2023-7-11

Out_of_Bag_Feature_Importance.png

It is putting all the variables nine times. I have attached the output png file. You may please have a look ot it. Thank you very much.

Sanchit

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Answer 1

Mayur 2023-7-11

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https://ww2.mathworks.cn/matlabcentral/answers/1994438-how-to-add-xticklable-in-bar-histogram#answer_1271153

编辑：Mayur 2023-7-11

在 MATLAB Online 中打开

Hi Sanchit!

I understand that you're not able to get the labels in x-axis. Assuming Td, T, EV, etc as variables and not actual values, you will need to use curly braces instead of square brackets. Here's the updated code:

bar(rf_classifier.OOBPermutedVarDeltaError)
ax = gca; 
xlabel('Feature Number','FontSize', 16)
ylabel('Out-of-Bag Feature Importance','FontSize', 16)
ax.XTickLabel = {Td,T,EV,PEV,SSR,SSRD,TP,VPD,RH};
ax.XTickLabelRotation = 45;

Otherwise, if they are actual values (strings), you need to use a string array or cell array.

bar(rf_classifier.OOBPermutedVarDeltaError)
ax = gca; 
xlabel('Feature Number','FontSize', 16)
ylabel('Out-of-Bag Feature Importance','FontSize', 16)
ax.XTickLabel = {'Td','T','EV','PEV','SSR','SSRD','TP','VPD','RH'};
ax.XTickLabelRotation = 45;

Please refer to this documentation for more info: https://in.mathworks.com/help/matlab/ref/matlab.graphics.axis.axes-properties.html

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Steven Lord 2023-7-11

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This likely doesn't do what the user wants. Let's look at what you're using to set the XTickLabel property:

['Td','T','EV','PEV','SSR','SSRD','TP','VPD','RH']
ans = 'TdTEVPEVSSRSSRDTPVPDRH'

Either use a string array (preferred) or a cell array containing char arrays.

s = ["Td","T","EV","PEV","SSR","SSRD","TP","VPD","RH"]
s = 1×9 string array
    "Td"    "T"    "EV"    "PEV"    "SSR"    "SSRD"    "TP"    "VPD"    "RH"
c = {'Td','T','EV','PEV','SSR','SSRD','TP','VPD','RH'}
c = 1×9 cell array
    {'Td'}    {'T'}    {'EV'}    {'PEV'}    {'SSR'}    {'SSRD'}    {'TP'}    {'VPD'}    {'RH'}