first round of metadata fixes

extras/data/COMPASS/metadata.yaml

@@ -1,5 +1,14 @@
-COMPASS:
-  description: Measurements with Polarised beams
-  nnpdf_id: COMPASS
+nnpdf_id: null
+fktable_id: null
+
+COMPASS_NC_17GEV_MUP_G1:
+  description: polarized structure function $g_1$ in COMPASS with proton target
   y_label: g1
-  y_label_tex: $g1$
+  y_label_tex: $2xg_1$
+  hepdata: https://www.hepdata.net/record/ins843494
+
+COMPASS_NC_25GEV_MUD_G1:
+  description: polarized structure function $g_1$ in COMPASS with deuteron target
+  y_label: g1
+  y_label_tex: $2xg_1$
+  hepdata: https://www.hepdata.net/record/ins1501480

extras/data/COMPASS15/metadata.yaml

@@ -1,5 +1,14 @@
-COMPASS15:
-  description: Measurements with Polarised beams
-  nnpdf_id: COMPASS15
+nnpdf_id: null
+fktable_id: null
+
+COMPASS15_NC_17GEV_MUP_G1:
+  description: polarized structure function $g_1$ in COMPASS with proton target
   y_label: g1
-  y_label_tex: $g1$
+  y_label_tex: $2xg_1$
+  hepdata: https://www.hepdata.net/record/ins1357198
+
+COMPASS15_NC_25GEV_MUD_G1:
+  description: polarized structure function $g_1$ in COMPASS with deuteron target
+  y_label: g1
+  y_label_tex: $2xg_1$
+  hepdata: https://www.hepdata.net/record/ins1501480

extras/data/E142/metadata.yaml

@@ -1,5 +1,8 @@
-E142:
-  description: Measurements with Polarised beams
-  nnpdf_id: E142
+nnpdf_id: null
+fktable_id: null
+
+E142_NC_58GEV_EN_G1:
+  description: polarized structure function $g_1$ in E142 with neutron target
   y_label: g1
-  y_label_tex: $g1$
+  y_label_tex: $2xg_1$
+  hepdata: https://www.hepdata.net/record/ins424108

extras/data/E143/metadata.yaml

@@ -1,5 +1,13 @@
-E143:
-  description: Measurements with Polarised beams
-  nnpdf_id: E143
+nnpdf_id: null
+fktable_id: null
+hepdata: https://www.hepdata.net/record/ins467140
+
+E143_NC_4GEV_EP_G1:
+  description: polarized structure function $g_1$ in E143 with proton target
   y_label: g1
-  y_label_tex: $g1$
+  y_label_tex: $2xg_1$
+
+E143_NC_8GEV_ED_G1:
+  description: polarized structure function $g_1$ in E143 with deuteron target
+  y_label: g1
+  y_label_tex: $2xg_1$

extras/data/E154/metadata.yaml

@@ -1,5 +1,8 @@
-E154:
-  description: Measurements with Polarised beams
-  nnpdf_id: E154
+nnpdf_id: null
+fktable_id: null
+
+E154_NC_9GEV_EN_G1:
+  description: polarized structure function $g_1$ in E154 with neutron target
   y_label: g1
-  y_label_tex: $g1$
+  y_label_tex: $2xg_1$
+  hepdata: https://www.hepdata.net/record/ins443170

extras/data/E155/metadata.yaml

@@ -1,5 +1,23 @@
-E155:
-  description: Measurements with Polarised beams
-  nnpdf_id: E155
-  y_label: G1F1
-  y_label_tex: $g1/f1$
+nnpdf_id: null
+fktable_id: null
+hepdata: https://www.hepdata.net/record/ins530798
+
+E155_NC_9GEV_EN_G1:
+  description: polarized structure function $g_1$ in E155 with neutron target
+  y_label: g1
+  y_label_tex: $2xg_1$
+
+E155_NC_9GEV_EN_F1:
+  description: polarized structure function $F_1$ in E155 with neutron target
+  y_label: F1
+  y_label_tex: $2xF_1$
+
+E155_NC_9GEV_EP_G1:
+  description: polarized structure function $g_1$ in E155 with proton target
+  y_label: g1
+  y_label_tex: $2xg_1$
+
+E155_NC_9GEV_EP_F1:
+  description: polarized structure function $F_1$ in E155 with proton target
+  y_label: F1
+  y_label_tex: $2xF_1$

extras/data/EMC/metadata.yaml

@@ -1,5 +1,8 @@
-EMC:
-  description: Measurements with Polarised beams
-  nnpdf_id: EMC
+nnpdf_id: null
+fktable_id: null
+
+EMC_NC_16GEV_MUP_G1:
+  description: polarized structure function $g_1$ in EMC with proton target
   y_label: g1
-  y_label_tex: $g1$
+  y_label_tex: $2xg_1$
+  hepdata: https://www.hepdata.net/record/ins280143

extras/data/HERMES/metadata.yaml

@@ -1,5 +1,18 @@
-HERMES:
-  description: Measurements with Polarised beams
-  nnpdf_id: HERMES
+nnpdf_id: null
+fktable_id: null
+hepdata: https://www.hepdata.net/record/ins726689
+
+HERMES_NC_7GEV_EN_G1:
+  description: polarized structure function $g_1$ in HERMES with neutron target
   y_label: g1
-  y_label_tex: $g1$
+  y_label_tex: $2xg_1$
+
+HERMES_NC_7GEV_EP_G1:
+  description: polarized structure function $g_1$ in HERMES with proton target
+  y_label: g1
+  y_label_tex: $2xg_1$
+
+HERMES_NC_7GEV_ED_G1:
+  description: polarized structure function $g_1$ in HERMES with deuteron target
+  y_label: g1
+  y_label_tex: $2xg_1$

extras/data/machinery/generate/utils.py

@@ -2,6 +2,7 @@
 
 import numpy as np
 import yaml
+
 from yadmark.data import pineappl_xgrid
 
 here = pathlib.Path(__file__).parent