ProgressEvent.lengthComputable The ProgressEvent.lengthComputable read-only property is a Boolean flag indicating if the resource concerned by the ProgressEvent has a length that can be calculated. If not, the ProgressEvent.total property has no significant value. So in your case if you debug a little , you will find evt.lengthComputable = false; so you can not trace the … Read more
You cannot do it unless the C API allows passing a user-provided callback parameter. If it does not, you can only use static functions. The reason is that closures are not “just” functions. As their name implies, closures “close over” variables from their lexical scope. Each closure has an associated piece of data which holds … Read more
My js class for solving this problem is: var RotateIcon = function(options){ this.options = options || {}; this.rImg = options.img || new Image(); this.rImg.src = this.rImg.src || this.options.url || ”; this.options.width = this.options.width || this.rImg.width || 52; this.options.height = this.options.height || this.rImg.height || 60; var canvas = document.createElement(“canvas”); canvas.width = this.options.width; canvas.height = this.options.height; this.context … Read more
You can shift the “Very Good” category to the second column of the legend by adding a dummy factor level and setting its colour to white in the legend, so that it can’t be seen. In the code below, we add a blank factor level between “Good” and “Very Good”, so now we have six … Read more
Define your own roll We can create a function that takes a window size argument w and any other keyword arguments. We use this to build a new DataFrame in which we will call groupby on while passing on the keyword arguments via kwargs. Note: I didn’t have to use stride_tricks.as_strided but it is succinct … Read more
If you are using Sql Server this should work DECLARE @Table TABLE( ID INT, Val INT ) INSERT INTO @Table (ID,Val) SELECT 1, 3 INSERT INTO @Table (ID,Val) SELECT 2, NULL INSERT INTO @Table (ID,Val) SELECT 3, 5 INSERT INTO @Table (ID,Val) SELECT 4, NULL INSERT INTO @Table (ID,Val) SELECT 5, NULL INSERT INTO @Table … Read more
Okay, just to clarify things that have already been posted. You should have the directory com, containing the directory company, containing the directory example, containing the file MyClass.java. From the folder containing com, run: $ javac com\company\example\MyClass.java Then: $ java com.company.example.MyClass Hello from MyClass! These must both be done from the root of the source … Read more
The ImportError message is a bit misleading because of the reference to Win32, whereas the problem was simply the OpenCV DLLs were not found. This problem was solved by adding the path the OpenCV binaries to the Windows PATH environment variable (as an example, on my computer this path is: C:\opencv\build\bin\Release).
The best we could come up with is this: ^\\$?(([1-9](\\d*|\\d{0,2}(,\\d{3})*))|0)(\\.\\d{1,2})?$ I realize it might seem too much, but as far as I can test it matches anything that a human eye would accept as valid currency value and weeds out everything else. It matches these: 1 => true 1.00 => true $1 => true $1000 … Read more
You can use gsubfn library(gsubfn) gsubfn(“.”, list(“‘” = “”, ” ” = “_”), x) # [1] “ab_c” Similarly, we can also use mgsub which allows multiple replacement with multiple pattern to search mgsub::mgsub(x, c(“‘”, ” “), c(“”, “_”)) #[1] “ab_c”