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Mastering Development

Forward fill resample data in Python at fixed interval

I would like to resample column data at a 10second interval, based on previous value, ie., using forward fill ffill. Dataframe df looks like this: Timestamp data 850812 2011-01-26 17:53:39.250 28.5 394354 2011-01-26 17:53:42.250 NaN 554123 2011-01-26 17:54:09.400 NaN 1187196 2011-01-26 17:54:19.400 NaN 1067598 2011-01-26 17:54:21.400 NaN 463998 2011-01-26 17:55:34.030 29.5 231116 2011-01-26 17:56:26.030 30.5 […]

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Apple User Help

What Data was uploaded when app accessing our Contacts? [closed]

From the moment we switch from Skype/AIM to Apps like Viber and WhatsApp, we’ve become comfortable with IM Apps accessing our contacts. Honestly, I am never fully comfortable with that idea. However, I am much more interested in learning what Data in Contacts did they upload to their server? Will Apple restricts access only to […]

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Linux Mastering Development

Apache2: Hosting Multiple Sites (Ubuntu Server)

I am new working with system.d and services on ubuntu/debian. I’m trying to serve multiple sites on the same Apache2 (I am note sure if I should have 3 apache2 folders for the each service). The configuration layout of the installation looks as follows: I need to configure three instances of server to listen on […]

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Mastering Development

How could I code if-statement after switch-statement in C++?

I am writing a code to calculate the toll fee literally for my class assignment in C++. The code is shown below. My problem is that I only want to perform the calculation, ie, toll = vRate * distance if it meets any of the cases. If the input is invalid, by default, it will […]

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Mastering Development System & Network

WordPress+HTML -> Moodle

One has a site with a lot of (a lot of a lot of) pages in HTML. The pages are managed through WordPress and includ motions, different fonts, videos, images, etc., ie, are elaborated pages. Because of the Moodle is more usable, it is convenient to migrate for Moodle for continuing posting pages. However, is […]

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Mastering Development System & Network

WordPress+HTML -> Moodle

One has a site with a lot of (a lot of a lot of) pages in HTML. The pages are managed through WordPress and includ motions, different fonts, videos, images, etc., ie, are elaborated pages. Because of the Moodle is more usable, it is convenient to migrate for Moodle for continuing posting pages. However, is […]

Categories
Mastering Development System & Network

WordPress+HTML -> Moodle

One has a site with a lot of (a lot of a lot of) pages in HTML. The pages are managed through WordPress and includ motions, different fonts, videos, images, etc., ie, are elaborated pages. Because of the Moodle is more usable, it is convenient to migrate for Moodle for continuing posting pages. However, is […]

Categories
Mastering Development

How to store a generated, static set of bitsets in a minimized byte array

Optimization problem: I have an array of bitsets, A, all containing integers in the range [0; 2047], all with at least 2 elements, all sets unique. I want to store them in a byte array, BA, where each bitset, S, is stored in a compressed format, BS starting with 2 bytes: b0, which indicates the […]

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Ask Electrical Engineering Engineering

Measuring SNR on a mulltiplexed coax power and data cable

Please excuse the basic knowledge I have in this field. Within my workplace, we constantly use long 300m-6km coax cable which carries HV (Up to 400VDC) and DSL data. We have encountered problems whereby using a cable length too long has resulted in interrupted data, as well RF pickup in some instances that interrupt data. […]

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Ask Biology

Distribution of hearing loss

Low frequency sounds are more penetrating, damaging. Why does hearing loss occur at high frequency first? It should occur at low frequency becuase that is the more damaging sound. The distribution of hearing loss is totally incompatible with the noise exposure explanation. It could be due to growth factors, ie, the high frequency dies first […]