Error setting property 'YLabel' of class 'Axes':

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hans 2022-6-29

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1750635-error-setting-property-ylabel-of-class-axes

评论： Voss 2022-6-29

采纳的回答： Voss

在 MATLAB Online 中打开

I'm getting the error message:

Error setting property 'YLabel' of class 'Axes':

Value must be 'matlab.graphics.Graphics'

figure;
        ax = gca;
        ax.YLabel = "[Pressure [Pa]]"  ;

I do not understand the contents of the error message

What is wrong with the value, I try to assign?

I don't get any error message if I just use

ylabel('[Pressure [Pa]]')

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Answer 1

Voss 2022-6-29

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1750635-error-setting-property-ylabel-of-class-axes#answer_996545

在 MATLAB Online 中打开

The YLabel is a text object. You mean to set its String property:

figure;

ax = gca;

ax.YLabel.String = "[Pressure [Pa]]" ;

You can see other properties of ax.YLabel you might want to set as well (though not all of them are settable):

disp(properties(ax.YLabel))
    {'Color'              }
    {'Position'           }
    {'String'             }
    {'Interpreter'        }
    {'Extent'             }
    {'Rotation'           }
    {'FontName'           }
    {'FontUnits'          }
    {'FontSize'           }
    {'FontAngle'          }
    {'FontWeight'         }
    {'HorizontalAlignment'}
    {'VerticalAlignment'  }
    {'EdgeColor'          }
    {'LineStyle'          }
    {'LineWidth'          }
    {'BackgroundColor'    }
    {'Margin'             }
    {'Editing'            }
    {'Clipping'           }
    {'FontSmoothing'      }
    {'Interactions'       }
    {'Units'              }
    {'Children'           }
    {'Parent'             }
    {'Visible'            }
    {'HandleVisibility'   }
    {'ButtonDownFcn'      }
    {'ContextMenu'        }
    {'BusyAction'         }
    {'BeingDeleted'       }
    {'Interruptible'      }
    {'CreateFcn'          }
    {'DeleteFcn'          }
    {'Type'               }
    {'Tag'                }
    {'UserData'           }
    {'Selected'           }
    {'SelectionHighlight' }
    {'HitTest'            }
    {'PickableParts'      }