# Documentation

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## Customizing Tick Labels

You can use graphics functions in MATLAB to modify tick labels on Cartesian and polar plots.

### Tick Labels in Cartesian Coordinates

Modify the tick labels of a Cartesian plot to better display the data. Create a plot that shows monthly temperature data over the course of a decade. Load the file `monthlyTemps.mat`, which contains the variables `temperatures`, `months`, and `years`. Visualize the yearly and monthly changes in a three-dimensional bar graph.

```load(fullfile(matlabroot,'examples','matlab','monthlyTemps.mat')) bar3(temperatures) axis([0 13 0 12 0 80]) title('Monthly Temperatures 1990-2000') xlabel('Month') ylabel('Year') zlabel('Temperature')```

The plot has the numbers 1 through 11 for the Year axis and the numbers 1 through 12 for the Month axis.

### Customizing Tick Labels for X, Y, and Z

Adjust the tick label properties to better display the information. Define tick labels by passing cell arrays of character vectors to the `xticklabels` and `yticklabels` functions.

```xticklabels(months) yticklabels(years)```

Angle the labels so that the text does not overlap. To adjust the angle of the tick labels, use the `xtickangle` and `ytickangle` functions.

```xtickangle(-30) ytickangle(30)```

The tick formatting functions change tick labels to fit a certain format, such as percentages or a type of currency. To add the degree symbol along the temperature axis labels, use the `ztickformat` function.

`ztickformat('degrees')`

### Tick Labels in Polar Coordinates

Similar to a Cartesian plot, you can modify the tick labels of a polar plot to better display the data.

Create a plot that shows wind velocity data. Load the file` windData.mat`, which includes the variables `direction`, `speed`, `humidity`, `C`, and `cardinal`. Visualize the data on a polar scatter plot.

```load(fullfile(matlabroot,'examples','matlab','windData.mat')) polarscatter(direction,speed,humidity,C,'filled')```

### Customizing Tick Labels for R and Theta

Adjust the radial tick labels with the r-axis tick label functions, such as `rticks` and `rtickformat`.

```rticks([10 20]) rtickformat('%.2f')```

Change the theta tick labels with the theta-axis tick label functions, such as `thetaticks` and `thetaticklabels`.

```thetaticks(0:45:360) thetaticklabels(cardinal)```