Automatically export graphs for all the time series in a given data.frame, column by column, every X data points

[SimoneA]

Dear @technocrat thanks a lot for your help and for your time!

I tried to understand that thread, but I got completely lost.

my data (part of it) are those posted above:

@SimoneA

    structure(list(GW = c(0.08, 0.04, 0.35, 0.54, 0.39, 0.94, 0.51, 
    0.01, 0.44, 0.63, 0.14, 0.79, 0.43, 0.73, NA, NA, NA, NA, NA, 
    NA, NA, NA, NA), Pz1 = c(-2.459826614, -2.905007821, -2.241113224, 
    -1.549264338, -1.761962438, -1.282612221, -0.428828702, 1.659042479, 
    2.63518648, 3.076022461, 1.886216859, 0.124473561, -1.025720789, 
    -1.969461882, -2.216075605, -2.508858567, -2.495831241, -2.36513321, 
    -2.295002655, -2.103511241, -1.009051105, -0.619616011, -0.941517493
    ), Pz2 = c(-2.916090168, -3.262459435, -2.455396094, -1.488106654, 
    -0.417171756, -1.781014095, -0.605012986, 1.037062685, 1.977265974, 
    2.587846362, 2.499228916, 1.0852274, -0.503736287, -1.829562138, 
    -2.410220303, -2.135932209, -2.105646454, -2.79131286, -2.446274505, 
    -2.412041743, -1.467408853, -1.207262381, -1.286558601), Pz3 = c(-2.507944967, 
    -3.718722989, -2.812847708, -1.702389524, -0.356014073, -0.436223413, 
    -1.10341486, 0.860878402, 1.355286181, 1.929925855, 2.011052817, 
    1.698239458, 0.457017552, -1.307577636, -2.270320559, -2.330076907, 
    -1.732720095, -2.401128073, -2.872454155, -2.563313593, -1.775939355, 
    -1.665620129, -1.874204971), Pz4 = c(-2.526729696, -3.310577787, 
    -3.269111262, -2.059841138, -0.570296943, -0.375065729, 0.241375822, 
    0.362476528, 1.179101897, 1.307946062, 1.35313231, 1.210063358, 
    1.07002961, -0.346823797, -1.748336058, -2.190177163, -1.926864794, 
    -2.028201714, -2.482269368, -2.989493243, -1.927211205, -1.974150631, 
    -2.332562719), Pz5 = c(-3.284551238, -3.329362517, -2.86096606, 
    -2.516104692, -0.927748557, -0.5893486, 0.302533506, 1.70726721, 
    0.680700023, 1.131761778, 0.731152517, 0.552142851, 0.58185351, 
    0.266188261, -0.787582218, -1.668192661, -1.78696505, -2.222346412, 
    -2.109343009, -2.599308456, -2.353390855, -2.125422481, -2.641093221
    ), Pz6 = c(-4.011896321, -4.087184059, -2.87975079, -2.107959491, 
    -1.38401211, -0.946800213, 0.088250636, 1.768424893, 2.025490705, 
    0.633359905, 0.554968233, -0.069836942, -0.076066996, -0.221987839, 
    -0.174570161, -0.707438822, -1.264980548, -2.082446669, -2.303487708, 
    -2.226382097, -1.963206068, -2.551602131, -2.792365071), Pz7 = c(-4.769878994, 
    -4.814529142, -3.637572331, -2.12674422, -0.975866909, -1.403063767, 
    -0.269200978, 1.554142023, 2.086648388, 1.978150587, 0.05656636, 
    -0.246021225, -0.698046789, -0.879908346, -0.66274626, -0.094426764, 
    -0.304226709, -1.560462167, -2.163587964, -2.420526796, -1.59027971, 
    -2.161417344, -3.218544722)), class = "data.frame", row.names = c(NA, 
    -23L))

I am sorry I can't provide more info in "R-appropriate format", but I don' really know where to start from (in terms of writing a code for this purpose).

I created an Excel spreadsheet (link below) that (I hope) explains what I am after. Would you be so kind to check it out?

Easyupload.io - Upload Files and Share Them Easily

Please, let me know if it is not clear and I will try to address any questions!

Thank you very much indeed!