data-conversion

问题 I am working on a program that compresses xml files to gzip using golang. but the program failed to generate files, however it does generate the output when I try to convert .txt file to gzip . Here is my program:- package main import ( "bytes" "compress/gzip" "fmt" "io" "log" "os" ) type Notes struct { To string `xml:"to"` From string `xml:"from"` Heading string `xml:"heading"` Body string `xml:"body"` } func main() { var buf bytes.Buffer zw := gzip.NewWriter(&buf) // Setting the Header

问题 my problem: I have a list of categorical variables such as import numpy as np a = np.array(['A','A','B','B','C','C','C']) unique_vars = {v: k for k, v in enumerate(np.unique(a))} c = np.array([unique_vars[i] for i in a]) which yields: array([0, 0, 1, 1, 2, 2, 2]) and I want to turn into: res = [0,0, 1,1, 0,0,0] in essence, at every "switch", the number has to be switched from 1 to 0. 回答1: First off, you can get the unique IDs in a vectorized manner with np.unique and additional input argument

问题 I am having trouble with my trial-and-error code. It's hard coded for what I am needing it to do... where the array is set to get random binary when it's ran. I wanted to isolate the problem, but it never wants to print numerator and denominator's values! So my assumption is it's never getting the said values. I hard-coded something because I wanted to see if this would work, dividing an array of 0's and 1's. I converted the first half (of 8 bits) to a string, then parsed it to numerator. I

问题 I am having trouble with my trial-and-error code. It's hard coded for what I am needing it to do... where the array is set to get random binary when it's ran. I wanted to isolate the problem, but it never wants to print numerator and denominator's values! So my assumption is it's never getting the said values. I hard-coded something because I wanted to see if this would work, dividing an array of 0's and 1's. I converted the first half (of 8 bits) to a string, then parsed it to numerator. I

问题 I am trying to send a ping to some IP through ICMP but the InetPton() function, which is suppose to convert string IPs into a binary form, is always returning the same ip: "1.0.0.0" . My code looks like this: short ip[4] = { 192, 168, 1, 2 }; bool checkIP() { HANDLE hIcmpFile; unsigned long ipaddr = INADDR_NONE; DWORD dwRetVal = 0; char SendData[32] = "Data Buffer"; LPVOID ReplyBuffer = NULL; DWORD ReplySize = 0; std::wostringstream strIP; strIP << ip[0] << "." << ip[1] << "." << ip[2] << "."

问题 I'm very new to R, and I was wondering if there was a simple way to convert a BMP image to a matrix in R. Mainly, I'm looking for any package that can help. The values of each element in the matrix would correspond to colors. 回答1: A search for "bmp" on the CRAN packages list pulls up bmp and some others, for brevity I will just use this package. library(bmp) fl <- system.file("images", "5HT1bMARCM-F000001_seg001_lsm.bmp", package = "bmp") b <- read.bmp(fl) This object is an array, with some

问题 Maybe this doesn't belong on SO but I don't know where else. I have to reimplement printf(3) with C without using any function that would do the conversion for me, I'm nearly done, but I'm stuck on %a , I really don't understand what is happening here for example: printf("%a\n", 3.0); //#=> 0x1.8p+1 printf("%a\n", 3.1); //#=> 0x1.8cccccccccccdp+1 printf("%a\n", 3.2); //#=> 0x1.999999999999ap+1 printf("%a\n", 3.3); //#=> 0x1.a666666666666p+1 printf("%a\n", 3.4); //#=> 0x1.b333333333333p+1

问题 I have a XML file in which files are put. My target is to let a PowerShell script show a list of all the files and their properties. My XML File: <FileList> <File> <Path>C:\File1.txt</Path> <MaxSize>20000</MaxSize> </File> <File> <Path>C:\File2.txt</Path> <MaxSize>20000</MaxSize> </File> </FileList> My output in PowerShell needs to retrieve the file and the size of it. Example Output: File1: 4mb (max size= 20000mb) File2: 3mb (max size= 20000mb) Later, I later want to create a method to check

问题 I am looking to copy an existing (already created worksheet) into about 500 workbooks (*.xlsx) that all reside in the same folder. Another user (@tigeravatar) was able to generate the below code that could be utilized in MS Excel but they asked me to open up another question since I didnt clarify my desire to use it in MS Access. My rudimentary knowledge of VBA tells me I need to to do something like 'Dim ObjXL As Object and then Set ObjXL = CreateObject("Excel.Application") but beyond that I

问题 I am looking to copy an existing (already created worksheet) into about 500 workbooks (*.xlsx) that all reside in the same folder. Another user (@tigeravatar) was able to generate the below code that could be utilized in MS Excel but they asked me to open up another question since I didnt clarify my desire to use it in MS Access. My rudimentary knowledge of VBA tells me I need to to do something like 'Dim ObjXL As Object and then Set ObjXL = CreateObject("Excel.Application") but beyond that I