Tag: a

write to serial port with usleep problems

Post author By Full Stack
Post date August 13, 2020
No Comments on write to serial port with usleep problems

I’am trying to write to serial port using usleep, when i try this in main code it works fine: int set_interface_attribs(int fd, int speed) { struct termios my_termios; memset(&my_termios, 0, sizeof my_termios); if(tcgetattr(fd, &my_termios) != 0) { fprintf(stderr, "error %d from tcgetattr", errno); return -1; } cfsetospeed(&my_termios, speed); cfsetispeed(&my_termios, speed); my_termios.c_cflag |= CS8; my_termios.c_cflag |= […]

Tags 'C_1', "error %d from tcgetattr", "error %d from tcsetattr", "error %d opening %s: %s", &c_1); num2 = (unsigned char)num; dat1 = (unsigned char)c_1; dat2 = (unsigned char)c_2; dat3 = (unsigned char)c_3;, &c_1); num2 = (unsigned char)num; dat1 = (unsigned char)c_1; dat2 = (unsigned char)c_2; dat3 = (unsigned char)c_3; writ, &dat1, &my_termios) != 0) { fprintf(stderr, $errno, 0, a, B19200); a = float2fix(val); FFtoF_F_F(val, baud); printf("Port %s opened.\n", C_2, c_3], char *argv[]) { unsigned char dat1, dat2, dat3, errno); return -1; } cfsetospeed(&my_termios, errno); return -1; } return 0; } const char *portname = "/dev/ttyUSB1"; int serialFd = -1; int serial_open(const char* port, I'am trying to write to serial port using usleep, int baud) { serialFd = open(port, int speed) { struct termios my_termios; memset(&my_termios, num=159; unsigned char dat1, num=159;; serial_open(portname, num2, num2; FFtoF_F_F(val, num2; int val=50, O_RDWR | O_NOCTTY); if (serialFd < 0) { fprintf(stderr, port, port); return -1; } int main(int argc, sizeof my_termios); if(tcgetattr(fd, sizeof(dat1)); usleep(2000); write(serialFd, sizeof(dat2)); usleep(2000); write(serialFd, sizeof(dat3)); } but when i call this function ( SetVal () ) in main it doesn't work properly.I think usleep is lengthens slightly. ho, sizeof(dat3)); } I need to call this many time with diferent flags, sizeof(num2)); usleep(2000); write(serialFd, so I try putting everything inside a function, so the messages are sent correctly?, speed); cfsetispeed(&my_termios, speed); my_termios.c_cflag |= CS8; my_termios.c_cflag |= CREAD; my_termios.c_iflag = IGNPAR | IGNBRK; my_termios.c_cflag, strerror(errno)); return -1; } set_interface_attribs(serialFd, TCIFLUSH); if (tcsetattr(fd, TCOFLUSH); tcflush(fd, TCSANOW, this way: void SetVal(int val){ int c_3, when i try this in main code it works fine: int set_interface_attribs(int fd

User Help Web Apps

ImportError: cannot import name ‘UserGroup’ from ‘bloodapp.models’ (/home/abbracx/Documents/virtualenv/Bloodbank/bloodapp/models.py

please what could be the possible cause of these error? i have no idea and have been trying to fix it for the pass 6 hours. bloodapp.models has these: from django.contrib.auth.models import AbstractUser from django.utils import timezone from django_countries.fields import CountryField from django.urls import reverse from django.utils.text import slugify import random import string from Bloodbank […]

Tags 'AB-')) group_name = models.CharField(max_length=100) group_code = models.CharField(max_length=3, 'o', **kwargs) def __str__(self): return self.group_code bloodrequestapp.models has these: from django.contrib.auth.models impo, **kwargs): self.group_slug = self.unique_slug_generator() super().save(*args, *args, a, AB, B, blank=True) member= models.ManyToManyField(User, chars=string.ascii_lowercase + string.digits): return ''.join(random.choice(chars) for _ in range(size)) class User(AbstractUser): i, choices=BLOOD_GROUP) group_slug = models.SlugField(max_length=200, new_slug=None): if new_slug is not None: slug = new_slug else: slug = slugify(self.group_name_), on_delete=models.CASCADE), please what could be the possible cause of these error? i have no idea and have been trying to fix it for the pass 6 hours. bloodapp.models, related_name ='group_request') def unique_slug_generator(self, related_name='group_member') request = models.ManyToManyField(BloodRequest, through='Membership', unique=True, verbose_name='donor') message = models.CharField(max_length=255) request_date = models.DateTimeField(default=timezone.now) d, verbose_name='receipient') receiver = models.ForeignKey(UserGroup

Mastering Development

Pandas dataframe column with title ‘name’

Post author By Full Stack
Post date August 12, 2020
No Comments on Pandas dataframe column with title ‘name’

I have multiple dataframes which I join based on a common column. The code looks like this: df=reduce(lambda x,y:pd.merge(x,y,on=’name’),[total,eliminated, actionable, bug]) Afterwards, I intend to rename the column name. But name is not anymore in the column list. When I print the df, the name column shows but I don’t know how to work with […]

User Help

Microsoft Excel – getting the right data

Post author By How To
Post date August 12, 2020
No Comments on Microsoft Excel – getting the right data

I have an intermediate usage level. There is 3 list cells with options, Rating, Term & Sector, I pick my 3 options then I have various tables with corresponding data on a different sheet, I hope to pick out the relevant data from these tables. (1 different table for each sector, columns term and rows […]

Mastering Development

Count the number of duplicate grouped by ID pandas

Post author By Full Stack
Post date August 12, 2020
No Comments on Count the number of duplicate grouped by ID pandas

I’m not sure if this is a duplicate question, but here it goes. Assuming I have the following table: import pandas lst = [1,1,1,2,2,3,3,4,5] lst2 = [‘A’,’A’,’B’,’D’,’E’,’A’,’A’,’A’,’E’] df = pd.DataFrame(list(zip(lst, lst2)), columns =[‘ID’, ‘val’]) will output the following table +—-+—–+ | ID | Val | +—-+—–+ | 1 | A | +—-+—–+ | 1 | […]

Tags 'E'] df = pd.DataFrame(list(zip(lst, 'lst2', 'val']) will output the following table +----+-----+ | ID | Val | +----+-----+ | 1 | A | +----+-----+ | 1 | A | +----+-----+ | 1 | B, 1, 2, 3, 4, 5] lst2 = ['A', a, B, but here it goes. Assuming I have the following table: import pandas lst = [1, columns = ['id', d, e, I'm not sure if this is a duplicate question

Mastering Development

Multiprocessing how do I improve this?

Post author By Full Stack
Post date August 11, 2020
No Comments on Multiprocessing how do I improve this?

I have a script in which I am taking xlsx files and reformatting them and creating a txt document recording the reformatting. The script works well and does what I want it to do. However, It is not as fast as I would like as the multiprocessing is not being fully utilized. At times there […]

Tags "r") files = [] for directory in directories: directory = directory[:-1] print(directory) report_type = "Annual" path = os., a, args=(file, count) -> ((), directory, directory): for file in files_xlsx: xls = xlrd.open_workbook(file, encoding='utf-8') as outfile: outfile.write('\n'+str(count)+". "+sheet_title_value) count +=1 directories =, file) with open(directory+"\\Reference_Sheets\\"+file[:-5]+".txt", file): open_xl_sheet = open_xl[title] sheet_title = open_xl_sheet['A1'] sheet_title_value = sheet_title.value # print(sheet_, files_xlsx, I have a script in which I am taking xlsx files and reformatting them and creating a txt document recording the reformatting. The script work, I would like it to work on as many xlsx sheets at a time from multiple "files_xlsx"/directories etc. But I have had no luck in writing my cod, It is not as fast as I would like as the multiprocessing is not being fully utilized. At times there may only be a handful of files being ref, on_demand=True) open_xl = openpyxl.load_workbook(file) titles = xls.sheet_names() # print(len(titles)) count, open_xl, s_route)) processes.append(process) process.start() process.join() def rename_sheets(title, title)) sheet_title_value = rename_sheets(title

Mastering Development

Specifying random effects for repeated measures in logistic mixed model in R: lme4::glmer()

Post author By Full Stack
Post date August 11, 2020
No Comments on Specifying random effects for repeated measures in logistic mixed model in R: lme4::glmer()

I am looking for feedback to determine how to correctly specify random effects to account for correlation in a repeated measures design, but with multiple levels of correlation (including the data being longitudinal for each combination of predictors). The outcome is binary, so I will be fitting a logistic mixed model. I was planning to […]

Tags -36L)) Current code being used: This is what I'm using currently, " but maybe this is already accounted for by + (1 | Trial) + (1 | Subject). These data seem unique in that, " I have included the fixed effects of interest (Sex, "Female"), "INTERVENTION", "Male", "pre", 0L, 1L, 2L, a, and if this affects some aspect of the code. I am looking for your feedback, and mixed models, and preferably also the reference(s) (texts, and random intercepts for Trial and Subject using + (1 | Trial) + (1 | Subject). Does + (1 | Trial) + (1 | Subject) correctly "tell" the mod, and Sex**Intervention*), and thus Trial should also be accounted for as a form of cluster correlation. Dummy dataset: Shows the general structure of my data (althoug, and Trial A is always Trial A. There is no way to re-number/re-letter these as you could if the design were nested (see, B, because Subject 1 is always Subject 1, Binary_outcome = c(1L, broader categorical data analysis, but - as far as I can tell - none of them bring together the ideas I have posed here. Thus, but I do not know if I should be specifying the random effects differently based on the structure of the data (outlined below under "Accounti, but rather a random set of 6 trials. Trial is not a variable of interest. It is merely thought that observations within an individual, but with multiple levels of correlation (including the data being longitudinal for each combination of predictors). The outcome is binary, c--, categorical): One between-subjects factor, class = "data.frame", d, data = data01, determining if they looked at a certain object on the screen or not (hence the binary outcome). Study design (which can be seen by processin, e, e.g., e.g.: https://stats.stackexchange.com/questions/228800/crossed-vs-nested-random-effects-how-do-they-differ-and-how-are-they-specified). As c, even within a trial, f: '' }, family="binomial") Accounting correctly for correlation: This is where my question lies. Comments/Questions: I believe both the Subject and, for example. This is why I simply used + (1 | Trial) + (1 | Subject) here. Lastly, g, I am looking for feedback to determine how to correctly specify random effects to account for correlation in a repeated measures design, I don't know if it matters that not every subject gets every trial (but rather 6 out of 12 possible trials), Intervention (pre/post). Each subject is measured over six trials (under which there are repeated measures), Intervention = c("Pre", it still feels like there's a "hierarchy, j, knowing if a resource that is particularly useful to this situation would also be helpful., L)?, not every subject is in all 12 trials, one example is from an eye tracker: people's eyes are "tracked" for 30 seconds, or aov() with + Error(Subject), or does this need to be specified in another way? Even though I don't think the random effects are nested, peer-reviewed papers) used to determine your feedback. I have multiple texts on logistic regression, post, row.names = c(NA, Sex (male/female). One within-subjects factor, Sex = c("Female", so I will be fitting a logistic mixed model. I was planning to use the glmer() function from the lme4 package. If you're wondering how these, there are multiple measurements (0s/1s) for each subject. I am unsure of the implications of this with regard to the model fitting. Do I nee, Trial = c("A", Trial. Note there are 12 possible trials a person could be assigned. Thus, under different levels of the predictors, within a trial, within a trial could be more alike

Linux Mastering Development

awk how to separate in different files all the lines with the same content in a given column

Post author By Linux Questions
Post date August 10, 2020
No Comments on awk how to separate in different files all the lines with the same content in a given column

I have a big csv file (Test.csv), which looks like this: 1,2,3,A,5 1,2,3,B,5 1,2,3,E,5 1,2,3,D,5 1,2,3,Z,5 1,2,3,B,5 I want to print the lines in which the 4th column has the same content in different files. Actually, I need to join these lines that have the same content in a new csv or txt file, named […]

Tags 2, 3, 5 File B 1, 5 I want to print the lines in which the 4th column has the same content in different files. Actually, 5 Since the input file is large, 51, a, B, d, e, I have a big csv file (Test.csv), I have no idea how many different patterns there are in this 4th column. Column 4 contains only words and the other columns contain words and, I need to join these lines that have the same content in a new csv or txt file, I researched similar questions and even tried the following code: awk 'NR==FNR{a[$4]=NR; next} $NF in a {print > "outfile" a[$NF]}' Test.csv, named as the 4th column content. For example: Output: File A 1, please. thanks in advance., which looks like this: 1, z

Database Development

How can I go about building a relationship with variable but ordered number of columns in a table?

Post author By Jessica Alba
Post date August 10, 2020
No Comments on How can I go about building a relationship with variable but ordered number of columns in a table?

First, I’m not a DBA or even much of an SQL person, so I apologize if this is too much of an entry-level question! I have been tasked with redoing an old csv file and turning it into a relational database on an old Microsoft SQL Server 2008 we have. It needs to track both […]

Tags "This type of label has 4 fields in a, [data] nvarchar(255) ) GO CREATE TABLE [serialNumberTypes] ( [id] int PRIMARY KEY IDENTITY(1, [dateCreated] timestamp DEFAULT (now()), [format] nvarchar(255), [labelInstance_id] int, [labelSerialInstance_id] int ) GO CREATE TABLE [labelInstances] ( [id] int PRIMARY KEY IDENTITY(1, [labelType_id] int, [name] nvarchar(255) ) GO CREATE TABLE [labelTypes] ( [id] int PRIMARY KEY IDENTITY(1, [precedence] int ) GO CREATE TABLE [labelSerialInstances] ( [id] int PRIMARY KEY IDENTITY(1, [serialNumberInstance_id] int ) GO CREATE TABLE [LabelSerialTypes] ( [id] int PRIMARY KEY IDENTITY(1, [serialNumberType_id] int, [template] nvarchar(255) ) GO CREATE TABLE [serialNumberInstances] ( [id] int PRIMARY KEY IDENTITY(1, [type_id] int, [type_id] int ) GO ALTER TABLE [labelTypes] ADD FOREIGN KEY ([product_id]) REFERENCES [products] ([id]) GO ALTER TABLE [serialNumberInstanc, [typeName] nvarchar(255) ) GO CREATE TABLE [labelFieldInstances] ( [id] int PRIMARY KEY IDENTITY(1, 1, a, and I'm not sure how I'd begin finding the answer. Note that order can change between two label types. I'm thinking I could do something like, and the final output. Note: I didn't write the following SQL directly- I drew up a schema using a tool and translated it to this (for clarit, B, but that also feels a little brittle. I'm comfortable with one-to-many relationships and already have several in the schema I'm drawing up a, c--, d order, e order" but I can't seem to figure it out, each label can contain an arbitrary number of associated labels. Probably fewer than 10- but I also need to know which order because that's c, First, for instance. I've associated the serial numbers with their own types table. However, I hope). CREATE TABLE [products] ( [id] int PRIMARY KEY, I'm not a DBA or even much of an SQL person, product_id INT, so I apologize if this is too much of an entry-level question! I have been tasked with redoing an old csv file and turning it into a relation, so that's a reasonable approach. But it feels brittle and wrong and I really don't want to do it this way. The other approach I'm a little s, the instances themselves, while this label has 3 fields in b

Mastering Development

LCD screen display random characters

Post author By Full Stack
Post date August 10, 2020
No Comments on LCD screen display random characters

So I am ultimately trying to build a fun security system using a 4×4 number pad, arduino, and a solenoid. While trying to get the number pad and LCD to work together, I keep running into issues for reasons unknown to me. The code below is what I have so far: #include <LiquidCrystal.h> // includes […]

Tags '#', 'D'} }; byte rowPins [rows] = {1, 'enable', "rows": [ [ "", {'*', 0, 2, 2); // Initializes the interface to the LCD screen, 3, 4, 4}; //pins of the keypad byte colPins [cols] = {5, 5, 6, 7, 7); // Creates an LC object. Parameters: (rs, 8, 8}; Keypad myKeypad = Keypad( makeKeymap(keyMap), 9, a, and a solenoid. While trying to get the number pad and LCD to work together, and specifies the dimensions (width and height) of the display } } void loop() { char key = myKeypad.getKey(); if (key){ Serial.p, Arduino, B, c--, colPins, cols); //_________________________________________ void setup() { Serial.begin(9600); lcd.begin(16, D4, d5, D6, d7) //_________________________________________ const byte rows = 4; //number of the keypad's rows and columns const byte cols = 4; char, I keep running into issues for reasons unknown to me. The code below is what I have so far: #include // includes the Liqui, rowPins, So I am ultimately trying to build a fun security system using a 4x4 number pad