Understanding `scale` in R

log simply takes the logarithm (base e, by default) of each element of the vector. scale, with default settings, will calculate the mean and standard deviation of the entire vector, then “scale” each element by those values by subtracting the mean and dividing by the sd. (If you use scale(x, scale=FALSE), it will only subtract … Read more

How do I scale a UIButton’s imageView?

For the original poster, here is the solution I found: commentButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentFill; This will allow your button to scale horizontally. There is a vertical setting as well. Took me several hours to figure that one out (the naming of the property is very unintuitive) so figured I’d share.

How can I shrink the drawable on a button?

I have found a very simple and effective XML solution that doesn’t require ImageButton Make a drawable file for your image as below and use it for android:drawableLeft <?xml version=”1.0″ encoding=”utf-8″?> <layer-list xmlns:android=”http://schemas.android.com/apk/res/android”> <item android:id=”@+id/half_overlay” android:drawable=”@drawable/myDrawable” android:width=”40dp” android:height=”40dp” /> </layer-list> You can set the image size with android:width and android:height properties. This way you could … Read more

Scale and mirror SVG object

To apply both scale and flip, just list both in your transform: transform=”scale(2,2) scale(-1,1)” Or simply combine the values: transform=”scale(-2,2)” Of course, the issue you have with negative scales is that the objects get flipped across the origin (top left) of the SVG, so they can go off the edge of the document. You need … Read more

ConstraintLayout aspect ratio

Your understanding for the way app:layout_constraintDimensionRatio works is correct. If you set app:layout_constraintDimensionRatio=”H,3:1″ then it means width will be first computed from other constraints and then height will be adjusted according to the aspect ratio. The only problem with your implementation is that you added app:layout_constraintBottom_toBottomOf=”parent” to the ImageView, so that it caused app:layout_constraintDimensionRatio to … Read more

What is the difference between ‘log’ and ‘symlog’?

I finally found some time to do some experiments in order to understand the difference between them. Here’s what I discovered: log only allows positive values, and lets you choose how to handle negative ones (mask or clip). symlog means symmetrical log, and allows positive and negative values. symlog allows to set a range around … Read more