sequences | Variadic templates and std : :integer_sequence support library

As of 6.0 you can simply append the CSVs to same table one by one given the table has designated timestamp and partitioned it will work.

If your CSVs are huge I think batching them in transactions with few million rows will be better than offloading billions at once.

Depending of how much data you have and your box memory you need to partition in a way that single partition fits memory several times. So you choose if you want daily or monthly partitions.

Once you decide with partitioning you can speed up the upload if you able to upload day by day batches (or month by month) from all CSVs.

You will not need to rebuild the table every time you add an instrument, table will be rewritten automatically partition by partition when you insert records out of order.

You can use

The observable Zip operator works just the same as the enumerable version. You didn't use that in the first test so it's not like to be the operator you need here.

What you need is simply the SelectMany operator.

Try this query:

Raster or bitmap fonts are represented in a number of different ways and there are bitmap font file standards that have been developed for both Linux and Windows. However raw data representation of bitmap fonts in programming language source code seems to vary depending on:

• the memory architecture of the target computer,
• the architecture and communication pathways to the display controller,
• character glyph height and width in pixels and
• the amount of memory for bitmap storage and what measures are taken to make that as small as possible.

A brief overview of bitmap fonts

A generic bitmap is a block of data in which individual bits are used to indicate a state of either on or off. One use of a bitmap is to store image data. Character glyphs can be created and stored as a collection of images, one for each character in the character set, so using a bitmap to encode and store each character image is a natural fit.

Bitmap fonts are bitmaps used to indicate how to display or print characters by turning on or off pixels or printing or not printing dots on a page. See Wikipedia Bitmap fonts

A bitmap font is one that stores each glyph as an array of pixels (that is, a bitmap). It is less commonly known as a raster font or a pixel font. Bitmap fonts are simply collections of raster images of glyphs. For each variant of the font, there is a complete set of glyph images, with each set containing an image for each character. For example, if a font has three sizes, and any combination of bold and italic, then there must be 12 complete sets of images.

A brief history of using bitmap fonts

The earliest user interface terminals such as teletype terminals used dot matrix printer mechanisms to print on rolls of paper. With the development of Cathode Ray Tube terminals bitmap fonts were readily transferable to that technology as dots of luminescence turned on and off by a scanning electron gun.

Earliest bitmap fonts were of a fixed height and width with the bitmap acting as a kind of stamp or pattern to print characters on the output medium, paper or display tube, with a fixed line height and a fixed line width such as the 80 columns and 24 lines of the DEC VT-100 terminal.

With increasing processing power, a more sophisticated typographical approach became available with vector fonts used to improve displayed text quality and provide improved scaling while also reducing memory required to describe the character glyphs.

In addition, while a matrix of dots or pixels worked fairly well for languages such as English, written languages with complex glyph forms were poorly served by bitmap fonts.

Representation of bitmap fonts in source code

There are a number of bitmap font file formats which provide a way to represent a bitmap font in a device independent description. For an example see Wikipedia topic - Glyph Bitmap Distribution Format

The Glyph Bitmap Distribution Format (BDF) by Adobe is a file format for storing bitmap fonts. The content takes the form of a text file intended to be human- and computer-readable. BDF is typically used in Unix X Window environments. It has largely been replaced by the PCF font format which is somewhat more efficient, and by scalable fonts such as OpenType and TrueType fonts.

Other bitmap standards such as XBM, Wikipedia topic - X BitMap, or XPM, Wikipedia topic - X PixMap, are source code components that describe bitmaps however many of these are not meant for bitmap fonts specifically but rather other graphical images such as icons, cursors, etc.

As bitmap fonts are an older format many times bitmap fonts are wrapped within another font standard such as TrueType in order to be compatible with the standard font subsystems of modern operating systems such as Linux and Windows.

However embedded systems that are running on the bare metal or using an RTOS will normally need the raw bitmap character image data in the form similar to the XBM format. See Encyclopedia of Graphics File Formats which has this example:

Following is an example of a 16x16 bitmap stored using both its X10 and X11 variations. Note that each array contains exactly the same data, but is stored using different data word types:

The key idea is to use merge_asof. For two task dataframes the following would find for each row in Task1 the row in Task2 where End_1 and Start_2 are closest to each other (but still End_1 <= Start_2):

Use torch.BCELoss() instead (Binary cross entropy). This expects input and target to be the same size but they can be any size, and should fall within the range [0,1]. It performs cross-entropy loss element-wise.

One option with tidyverse

There are several problem with your test case. First your test case doesn't have 6 consecutive Trues. However an output is returned. Here is the code you might find useful. Note that I changed the 2 arrays so that they contain 6 consecutive Trues. You might want to delete the last 6 items in Array1 and Array2 to see whether it works or not. if I'm mistaken in getting the point of your question please tell it. Your question is a bit unclear. Goodluck.

What you asking for is more a mathematical problem than a programmer problem.

This is probably the formula you are searching for.