گروه بندی داده ها و تغییر تایم فریم داده ها - راهکار 1 بسیاری از اوقات می خواهیم داده ها را در گروه های مختلفی دسته بندی کنیم و یا تایم فریم داده ها را تغییر دهیم. برای این موضوع راهکارهای زیادی وجود دارد، یکی از این راهکارها استفاده از group by در پانداس است. در مثال این پست، داده های فرضی سه سهم در روزهای مختلف کاری طی یکماه (20 روز کاری) در قالب روزهای هفته دسته بندی می شود و میانگین آنها به عنوان نماینده نمایش داده می شود.
گروه بندی داده ها و تغییر تایم فریم داده ها - راهکار 1 بسیاری از اوقات می خواهیم داده ها را در گروه های مختلفی دسته بندی کنیم و یا تایم فریم داده ها را تغییر دهیم. برای این موضوع راهکارهای زیادی وجود دارد، یکی از این راهکارها استفاده از group by در پانداس است. در مثال این پست، داده های فرضی سه سهم در روزهای مختلف کاری طی یکماه (20 روز کاری) در قالب روزهای هفته دسته بندی می شود و میانگین آنها به عنوان نماینده نمایش داده می شود.
“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.
Telegram hopes to raise $1bn with a convertible bond private placement
The super secure UAE-based Telegram messenger service, developed by Russian-born software icon Pavel Durov, is looking to raise $1bn through a bond placement to a limited number of investors from Russia, Europe, Asia and the Middle East, the Kommersant daily reported citing unnamed sources on February 18, 2021.The issue reportedly comprises exchange bonds that could be converted into equity in the messaging service that is currently 100% owned by Durov and his brother Nikolai.Kommersant reports that the price of the conversion would be at a 10% discount to a potential IPO should it happen within five years.The minimum bond placement is said to be set at $50mn, but could be lowered to $10mn. Five-year bonds could carry an annual coupon of 7-8%.
