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## Make Line plot markers of different color

I want to mark certain indices in the line plot. I have referred to the following question on stack overflow and written the following: plt.plot(range(len(y)), y, ‘-bD’, markevery=rare_cases, label=’%s’ % target_var_name) However, this produces the following: How can I keep the line plot in blue but make the markers in red ?

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## Primary graphics card & multiple monitors with nouveau driver Ubuntu 18.04

The default Ubuntu 18.04 installation using the Nouveau driver lets the machine boot, and all three displays function. The machine has no onboard graphics and cannot boot without atleast one graphics card installed. The machine cannot boot past BIOS with only the Radeon card. The BIOS hangs with Intel error code 5A (resetting bus). With […]

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## Understanding Pytorch memory allocation on GPU

I have the following code snippet to do complex multiplication in Pytorch Variation 3 def complex_mult(x, y): a, b = x[:, :, :, :, :, 0], x[:, :, :, :, :, 1] c, d = y[:, :, :, :, :, 0], y[:, :, :, :, :, 1] out = torch.stack([a*c – b*d, a*d + b*c], […]

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## PoLCA ALERT: at least one manifest variable contained only one outcome category, and has been removed from the analysis

I am running PoLCA on RStudio: f <- cbind( B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z, AA, AB, AC, AD, AE, AF, AG, AH, AI, AJ, AK, AL, AM, AN, AO, AP, AQ, AR, AS, AT, AU, […]

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## Generating all permutative pairs of strings iteratively in Java

I am trying to write a function, such that given n strings, it generates all n P 2 pairs of such strings. For example, if I have [ab, bc, bd], it would generate [[ab, bc], [bc, ab], [ab, bd], [bd, ab], [bc, bd], [bd, bc]], not necessarily in that order. I have a messy recursive […]

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## How to use data from two XTS to create a new XTS?

Suppose I have the following two XTS… a <- c(1,2,3,4) b <- c(2,4,6,8) x <- xts(cbind(a,b),order.by = as.Date(c(“2015-01-02″,”2015-01-05″,”2015-01-06″,”2015-01-07”))) x and c <- c(“a”,”b”,”b”,”a”,”a”,”b”) d <- c(10,20,10,30,20,40) y <- xts(cbind(c,d),order.by = as.Date(c(“2015-01-02″,”2015-01-02″,”2015-01-05″,”2015-01-06″,”2015-01-07″,”2015-01-07”))) y These give me… a b 2015-01-02 1 2 2015-01-05 2 4 2015-01-06 3 6 2015-01-07 4 8 and c d 2015-01-02 “a” “10” […]

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## How to append dataframe into csv file with columns order changed without iterating over each column?

I am trying to append new dataframes iteratively to a single CSV file. The problem is dataframes always have same columns names but their order is random.Currently, I am using following code to append new data into csv : with open(name+’.csv’, ‘a’) as f: df.to_csv(f, header=f.tell()==0) But this does not work when column order is […]

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## how to generate combinations given a starting point?

Let’s say i want to generate all combinations of alphanumeric characters of length 2. Like so aa,ab,ac,…,az,aA,aB,…,aZ,a1,a2,…,a9,ba,bb,… so on and also i want to resume given a starting point. for example if i say bb the program should generate combinations that come after bb like so bb,bc,bd,…. so on is there a python library to […]