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Android User Help

Debunk: tripping KNOX removes your battery life?

I’ve heard various people in XDA reporting that rooting a Samsung S8 (or similar–S8+, S7, S7 Edge, S6, S5, S9, etc.) will remove 30% of your battery life, permanently. Is there any truth to this? I think the myth is built on reports that KNOX uses 30% of the battery life in some phones and […]

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Mastering Development

Using ggplot to plot more than 6 groups

I’m aware this question has been asked before and have attempted to use the solutions in said posts but to no avail, and to avoid necro’ing old posts I thought I’d make a new one. In my free time, which I have a lot of these days given the current pandemic, I’ve been watching episodes […]

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Mastering Development

How can I adjust bars on X-axis accord to numerical order?

The ideal order of bars on X-axis is (S1,S2,S3,S4,S5,S6,S7,S8,S9,S10).But it just can not be adjust successfully ggplot(data=T1, aes(x=Scenarios, y=Yields, fill=Scenarios)) + geom_bar(stat=”identity”) + scale_fill_manual(values=cbPalette)

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Mastering Development

Vectorized computation of returns from positions and bid-ask series

I have two series (bid and ask), and a list of positions. All have shape (T, S). In my example below, I have T=5 timesteps and S=3 symbols. The positions represent a portfolio allocation for each symbol at each timestep. For example, if I have 5% of asset 1, 10% of asset 2 and 85% […]

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Development System & Network

HP Microserver G8 flashing green LED on power button, not booting

Bought the Microserver with the issues described hoping I could make it work based on a few cases I researched upfront where OP got it solved by replacing CMOS battery or otherwise resetting CMOS/NVRAM. Unfortunately, in my case it didn’t help. iLO works fine and displays no issues in Health Check etc. but the system […]

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Development

How to add integers to floating point numbers in MIPS?

I want to do the following operation: 0.1xA^2 #A representing an integer, while 0.1 being a floating point number. I’m not allowed to use multiplication, division, or shift instructions. .data num1: .float 0.1 .text main: #A li $v0, 5 syscall move $t0, $v0 #A is stored in t0 li $t3, 0 li $s5, 0 #Finds […]

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Development Python

Python Multiprocessing Saving Files

I am computing various parameters across the entirety of Antarctica. The code takes too long so I have decided to split up Antarctica into 8 separate bits and run the code for each of these separate bits in parallel. At the end of each file I get a dictionary ‘I’ which I would like to […]

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Development

How to avoid hardcoding when filtering lists based on sublists?

I have the following list of lists, and I am dropping all lists that do not contain sl[0] or sl[1] sub-lists: l = [ [‘s1’, ‘s5’, ‘s6’, ‘s8’, ‘s10’, ‘s5’, ‘s15’, ‘s23’], [‘s1’, ‘s5’, ‘s8’, ‘s10’, ‘s5’, ‘s6’, ‘s8’, ‘s15’, ‘s23’], [‘s1’, ‘s5’, ‘s6’, ‘s10’, ‘s14’, ‘s15’, ‘s23’] ] sl = [[‘s5′,’s6′,’s8’],[‘s15’, ‘s23’]] This code […]

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Development

Numpy: wrong result when trying to update some elements of a 2D array

I have a 2D array mesh that contains the coordinates of points cloud. I am trying to select a subset of these points in the array points_to_deform. I apply some transformation on this array points_to_deform to get another array deformed_points with the same shape, then create a new array that holds the new mesh: new_mesh. […]

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Development

multiply matrix and array

I need to multiply matrixA and array of 3 dimension X. at last, I need to add array of 5 dimension B I think my code is getting worse and it’s not working well main: la $s0, matrixA #s0 set to base address of matrixA la $s1, vectorX #s1 set to base address of matrixB […]